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ASUS ROG Strix GeForce RTX 4090 OC Review | 118 Data compared

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  • Avg. price in UK: ~£2,810
  • Avg. price in US: ~$2,400
  • VRAM: 24 GB
  • Memory bus width: 384 bit
  • Thermal Design Power (TDP): 450 W

ASUS ROG Strix GeForce RTX 4090 OC review. Compare 118 technical specifications and user reviews to see how it ranks among graphics cards and if it is worth buying.

8.3

Overall score

What it is: An overall evaluation of the graphics card's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best graphics cards on the market.

Score components:

90.0%

8.2

Technical Score

10.0%

9.2

User score

Excellent
8.2

Technical Score

What it is: An assessment of the graphics card's technical performance, covering key areas such as gaming and rendering performance, ray tracing, memory configuration, power efficiency, cooling, connectivity, features, and build quality.

When it matters: When you want to compare graphics cards based on technical performance and available features.

Score components:

44.0%

9.1

Performance

24.0%

8.5

Memory

12.0%

4.4

Power & Cooling

11.0%

9.8

Platform & Features

5.0%

4.3

Design

4.0%

9.4

Connectivity & Media

Excellent
9.2

User score

What it is: A rating that combines user reviews and the total number of reviews received by the graphics card.

When it matters: When you want to understand how a graphics card performs in real use and how reliable it is in terms of performance, temperatures, noise, stability, and long-term ownership.

Score components:

70.0%

8.9

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.3
(325)
amazon
4.8
(136)
United States
Amazon_logo.png
4.7
(15)

(Reviews last updated: June 2026)

Exceptional
  • 9.3
    Gaming

    Score components:

    45.0%

    10

    Floating-point performance

    25.0%

    7.6

    VRAM

    20.0%

    10

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 9.1
    Video editing

    Score components:

    35.0%

    10

    AV1 encode

    30.0%

    7.6

    VRAM

    20.0%

    10

    Floating-point performance

    15.0%

    8.8

    PCI Express (PCIe) version

  • 9.3
    1080p

    Score components:

    55.0%

    10

    Floating-point performance

    25.0%

    7.6

    VRAM

    10.0%

    10

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 9.2
    1440p

    Score components:

    50.0%

    10

    Floating-point performance

    30.0%

    7.6

    VRAM

    15.0%

    10

    Ray tracing cores / units

    5.0%

    8.8

    PCI Express (PCIe) version

  • 9.1
    4K

    Score components:

    40.0%

    10

    Floating-point performance

    35.0%

    7.6

    VRAM

    20.0%

    10

    Ray tracing cores / units

    5.0%

    8.8

    PCI Express (PCIe) version

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Best prices in UK

Best rankings

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Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Asus ROG Strix GeForce RTX 4090 OC is a powerhouse GPU built on the Ada Lovelace architecture, featuring 16,384 CUDA cores, 24GB of GDDR6X VRAM, and a boosted clock speed of 2640 MHz in OC mode. It stands out for its massive 3.5-slot cooling system with patented vapor chamber technology and three Axial-tech fans that provide 23% more airflow for peak thermal performance. While it offers unparalleled 4K gaming performance and exceptional build quality with a die-cast frame, its main drawbacks are its enormous physical footprint and extremely high power consumption, requiring a minimum 1000W power supply.

Technical Specifications of ASUS ROG Strix GeForce RTX 4090 OC

Technical Score

What it is: An assessment of the graphics card's technical performance, covering key areas such as gaming and rendering performance, ray tracing, memory configuration, power efficiency, cooling, connectivity, features, and build quality.

When it matters: When you want to compare graphics cards based on technical performance and available features.

Score components:

44.0%

9.1

Performance

24.0%

8.5

Memory

12.0%

4.4

Power & Cooling

11.0%

9.8

Platform & Features

5.0%

4.3

Design

4.0%

9.4

Connectivity & Media

8.2
ASUS ROG Strix GeForce RTX 4090 OC has a technical score of 8.24 points, which is higher than that of 84% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the graphics card.

When it matters: When you want to understand how a graphics card performs in real use and how reliable it is in terms of performance, temperatures, noise, stability, and long-term ownership.

Score components:

70.0%

8.9

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.3
(325)
amazon
4.8
(136)
United States
Amazon_logo.png
4.7
(15)

(Reviews last updated: June 2026)

9.2
ASUS ROG Strix GeForce RTX 4090 OC has a user score of 9.23 points, which is higher than that of 82.5% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the graphics card.
When it matters: When you prefer a graphics card that has already been chosen and reviewed by many other users.
10
ASUS ROG Strix GeForce RTX 4090 OC has a popularity of 10 points, which is higher than 77.9% of products in this category.
Ratio quality/price

What it is: An indicator that combines the graphics card's overall rating with its cost.

When it matters: When you are looking for a graphics card that offers a strong balance of performance, features, and price.

Score components:

60.0%

8.3

Overall score

40.0%

1.0

Price

6.1
ASUS ROG Strix GeForce RTX 4090 OC has a quality-to-price ratio of 6.1 points, which is lower than 79.1% of products in this category.
3DMark Time Spy benchmark score
What it is: Benchmark result from 3DMark Time Spy, a synthetic DirectX 12 test often used as a quick gaming-performance reference.
When it matters: When you need a fast rough performance sort before digging into game-specific reviews and frame-rate data.

Importance: LOW

37,354 points
ASUS ROG Strix GeForce RTX 4090 OC scores 37354 points in 3DMark Time Spy, which is higher than 95.7% of graphics cards.
3DMark Port Royal score
What it is: Benchmark result from 3DMark Port Royal, a synthetic test focused on ray tracing performance.
When it matters: When ray tracing matters in the games you actually play and you want one quick way to separate stronger and weaker RT cards.

Importance: LOW

26,070 points
ASUS ROG Strix GeForce RTX 4090 OC scores 26070 points in 3DMark Port Royal, which is higher than 96.9% of graphics cards and equal to 0.4% of graphics cards.
PassMark (G3D) result
What it is: Overall GPU performance score in PassMark G3D benchmark
When it matters: When you need one broad score to sort cards into rough performance tiers.

Importance: LOW

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PassMark (DirectCompute) result
What it is: PassMark score for DirectCompute performance tests
When it matters: When compute workloads matter alongside gaming performance.

Importance: LOW

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Floating-point performance
What it is: Theoretical floating-point compute performance of the GPU.
When it matters: When rendering, AI, or heavy compute work needs strong single-precision throughput.

Importance: LOW

85.52 TFLOPS
ASUS ROG Strix GeForce RTX 4090 OC delivers 85.52 TFLOPS floating-point performance, which is higher than that of 96.5% of graphics cards and equal to that of 0.1% of graphics cards.
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VRAM
What it is: Total video memory available on the graphics card
When it matters: When you play at high settings, use texture mods, or work with large creative projects.

Importance: HIGH

24 GB
ASUS ROG Strix GeForce RTX 4090 OC has 24 GB of VRAM, which is more than 91.1% of graphics cards and equal to 5.6% of graphics cards.
Memory type
What it is: Type of graphics memory used (GDDR6, HBM2e, etc.)
When it matters: When memory technology is part of the buying decision because it affects bandwidth class, power use, and product positioning.

Importance: LOW

GDDR6X
GDDR version
What it is: Generation of GDDR memory used by the graphics card.
When it matters: When you want to separate older memory generations from newer ones before comparing bandwidth, power behavior, and market tier.

Importance: LOW

GDDR6X
ASUS ROG Strix GeForce RTX 4090 OC uses GDDR6X memory, which is newer than on 55.8% of graphics cards and equal to 22.6% of graphics cards.
Memory bus width
What it is: Width of the memory interface bus in bits
When it matters: When you care about steadier performance at higher resolutions, heavier texture settings, or ray-traced workloads that stress memory traffic.

Importance: HIGH

384 bit
ASUS ROG Strix GeForce RTX 4090 OC uses a 384 bit memory bus, which is wider than that of 89.3% of graphics cards and equal to that of 7.3% of graphics cards.
Maximum memory bandwidth
What it is: Maximum data transfer rate between GPU and its memory
When it matters: When 4K gaming, ray tracing, or creator work can choke a slower memory subsystem.

Importance: HIGH

1,008 GB/s
ASUS ROG Strix GeForce RTX 4090 OC reaches 1008 GB/s memory bandwidth, which is higher than that of 93.7% of graphics cards and equal to that of 2.8% of graphics cards.
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PCI Express (PCIe) version
What it is: Version of PCI Express interface supported
When it matters: When you are pairing the card with an older motherboard and want to avoid leaving bandwidth or future compatibility on the table.

Importance: LOW

4.0
ASUS ROG Strix GeForce RTX 4090 OC supports PCIe 4.0, which is newer than on 22.5% of graphics cards and equal to 52% of graphics cards.
PCIe lanes
What it is: Number of PCI Express lanes used for communication
When it matters: When limited lane width could bottleneck the card in some systems.

Importance: LOW

x16
ASUS ROG Strix GeForce RTX 4090 OC uses x16 PCIe lanes, which is more than 31.5% of graphics cards and equal to 68.6% of graphics cards.
DirectX version
What it is: Highest supported DirectX API version
When it matters: When you play newer Windows games that depend on the latest graphics features.

Importance: LOW

12 Ultimate
ASUS ROG Strix GeForce RTX 4090 OC supports DirectX 12 Ultimate, which is more advanced than on 12.5% of graphics cards and equal to 87.5% of graphics cards.
Vulkan version
What it is: Highest supported Vulkan API version
When it matters: When modern games, emulators, or creative apps lean on Vulkan support.

Importance: LOW

1.4
ASUS ROG Strix GeForce RTX 4090 OC supports Vulkan 1.4, which is more advanced than on 26.6% of graphics cards and equal to 73.4% of graphics cards.
OpenGL version
What it is: Highest supported OpenGL API version
When it matters: When older games or pro apps still depend on OpenGL compatibility.

Importance: LOW

4.6
ASUS ROG Strix GeForce RTX 4090 OC supports OpenGL 4.6, which is more advanced than on 4.8% of graphics cards and equal to 95.2% of graphics cards.
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Max displays supported
What it is: Total number of external displays supported simultaneously
When it matters: When you run a multi-monitor desk for sim racing, trading, or editing.

Importance: LOW

4
ASUS ROG Strix GeForce RTX 4090 OC supports up to 4 displays, which is more than 7.8% of graphics cards and equal to 89.2% of graphics cards.
Max digital resolution
What it is: Maximum supported digital display resolution
When it matters: When you plan to drive 4K or 8K panels at their native resolution.

Importance: LOW

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DisplayPort outputs
What it is: Number of DisplayPort video outputs
When it matters: When your setup needs several high-refresh monitors without adapters.

Importance: LOW

3
ASUS ROG Strix GeForce RTX 4090 OC offers 3 DisplayPort outputs, which is more than 20.9% of graphics cards and equal to 77.3% of graphics cards.
DisplayPort version
What it is: Version of DisplayPort standard supported
When it matters: When your monitor setup depends on newer DisplayPort features for higher refresh rates, higher resolution, or better cable flexibility.

Importance: LOW

1.4a
ASUS ROG Strix GeForce RTX 4090 OC supports DisplayPort 1.4a, which is more advanced than on 22.7% of graphics cards and equal to 44.2% of graphics cards.
DisplayPort link rates
What it is: Supported data link rates for DisplayPort connections
When it matters: When you are pushing high resolution and refresh rate over DisplayPort.

Importance: LOW

8.1 Gbps
ASUS ROG Strix GeForce RTX 4090 OC supports DisplayPort link rates up to 8.1 Gbps, which is slower than on 50.4% of graphics cards and equal to 40.5% of graphics cards.
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Thermal Design Power (TDP)
What it is: Typical power consumption under full load (TDP)
When it matters: When you need a realistic idea of power draw before choosing a PSU or case.

Importance: MEDIUM

450 W
ASUS ROG Strix GeForce RTX 4090 OC has a TDP of 450 W, which is higher than that of 94% of graphics cards and equal to that of 3% of graphics cards.
Power consumption while under peak load
What it is: Peak power draw of the graphics card under maximum load.
When it matters: When transient-heavy gaming loads could stress your power supply.

Importance: LOW

569 W
ASUS ROG Strix GeForce RTX 4090 OC draws 569 W under peak load, which is higher than 97.1% of graphics cards.
Recommended PSU wattage
What it is: Recommended wattage of the system power supply
When it matters: When you are checking whether your current power supply is enough.

Importance: LOW

1,000 W
ASUS ROG Strix GeForce RTX 4090 OC recommends a 1000 W PSU, which is higher than that of 95.5% of graphics cards and equal to that of 4.3% of graphics cards.
Board power limit
What it is: Maximum configurable power limit for the GPU board
When it matters: When you care about how far the card can be pushed through tuning or factory power settings.

Importance: LOW

600 W
ASUS ROG Strix GeForce RTX 4090 OC has a board power limit of 600 W, which is higher than that of 97.2% of graphics cards and equal to that of 2.6% of graphics cards.
PCIe power spec
What it is: PCIe power delivery specification followed
When it matters: When you are checking whether the slot and external cables match the card's intended power-delivery standard.

Importance: LOW

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Size
What it is: Physical size of the GPU card
When it matters: When you need the card to fit a compact case without blocking nearby hardware.

Importance: LOW

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Length
What it is: Physical length of the GPU card
When it matters: When front radiators or drive cages leave only limited GPU clearance.

Importance: LOW

357.6 mm
ASUS ROG Strix GeForce RTX 4090 OC is 357.6 mm long, which is longer than 97.3% of graphics cards and equal in length to 1% of graphics cards.
Height
What it is: Physical height of the GPU card
When it matters: When side panels, brackets, or tight case layouts reduce vertical clearance.

Importance: LOW

149.3 mm
ASUS ROG Strix GeForce RTX 4090 OC is 149.3 mm tall, which is taller than 90.8% of graphics cards and equal in height to 1% of graphics cards.
Slot width
What it is: Number of PCIe slots occupied by the card
When it matters: When you need room for another PCIe card or better airflow under the GPU.

Importance: LOW

3.5 slot/s
ASUS ROG Strix GeForce RTX 4090 OC occupies 3.5 slot/s, which is wider than 89.8% of graphics cards and equal in width to 6.7% of graphics cards.
Weight
What it is: Total weight of the graphics card
When it matters: When sag, bracket support, or shipping stress matters in your build.

Importance: LOW

2,504 g
ASUS ROG Strix GeForce RTX 4090 OC weighs 2504 g, which is heavier than 97.5% of graphics cards and equal in weight to 0.2% of graphics cards.
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ASUS ROG Strix GeForce RTX 4090 OC vs the average graphics card

  • 88 more compute units
    ASUS ROG Strix GeForce RTX 4090 OC has more compute units than the average graphics card (128 vs 40). The average graphics card has 40 compute units.
    What it is: Total number of shader multiprocessors or compute units
    When it matters: When you want a better sense of the GPU's overall parallel hardware resources before relying on game benchmarks alone.

    Importance: HIGH

    ASUS ROG Strix GeForce RTX 4090 OC has more compute units than the average graphics card (128 vs 40). The average graphics card has 40 compute units.128 vs 40
  • 80 more ray tracing cores
    ASUS ROG Strix GeForce RTX 4090 OC has more ray tracing cores than the average graphics card (128 vs 48). The average graphics card has 48 ray tracing cores.
    What it is: Number of dedicated ray tracing processing cores or units
    When it matters: When you care about ray-traced lighting, reflections, and shadows in newer games.

    Importance: HIGH

    ASUS ROG Strix GeForce RTX 4090 OC has more ray tracing cores than the average graphics card (128 vs 48). The average graphics card has 48 ray tracing cores.128 vs 48
  • 2.25x higher memory bandwidth
    ASUS ROG Strix GeForce RTX 4090 OC has a higher memory bandwidth than the average graphics card (1,008 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
    What it is: Maximum data transfer rate between GPU and its memory
    When it matters: When 4K gaming, ray tracing, or creator work can choke a slower memory subsystem.

    Importance: HIGH

    ASUS ROG Strix GeForce RTX 4090 OC has a higher memory bandwidth than the average graphics card (1,008 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.1008 GB/s vs 448 GB/s
  • 12 GB more VRAM
    ASUS ROG Strix GeForce RTX 4090 OC has more VRAM than the average graphics card (24 GB vs 12 GB). The average graphics card has 12 GB VRAM.
    What it is: Total video memory available on the graphics card
    When it matters: When you play at high settings, use texture mods, or work with large creative projects.

    Importance: HIGH

    ASUS ROG Strix GeForce RTX 4090 OC has more VRAM than the average graphics card (24 GB vs 12 GB). The average graphics card has 12 GB VRAM.24 GB vs 12 GB
  • 112 more ROPs
    ASUS ROG Strix GeForce RTX 4090 OC has more ROPs than the average graphics card (176 vs 64). The average graphics card has 64 ROPs.
    What it is: Total number of render output units on the GPU
    When it matters: When you want more context on pixel output capacity, especially for high-resolution play and older raster-heavy engines.

    Importance: HIGH

    ASUS ROG Strix GeForce RTX 4090 OC has more ROPs than the average graphics card (176 vs 64). The average graphics card has 64 ROPs.176 vs 64
  • 328 more TMUs
    ASUS ROG Strix GeForce RTX 4090 OC has more TMUs than the average graphics card (512 vs 184). The average graphics card has 184 TMUs.
    What it is: Total count of texture mapping units on the GPU
    When it matters: When texture-heavy gaming performance matters and you want extra hardware context behind texture-rate claims.

    Importance: HIGH

    ASUS ROG Strix GeForce RTX 4090 OC has more TMUs than the average graphics card (512 vs 184). The average graphics card has 184 TMUs.512 vs 184
  • 2.78x higher pixel rate
    ASUS ROG Strix GeForce RTX 4090 OC has a higher pixel rate than the average graphics card (459.4 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.
    What it is: Number of pixels the GPU can render per second
    When it matters: When you play at high resolutions or care about older raster-heavy games.

    Importance: MEDIUM

    ASUS ROG Strix GeForce RTX 4090 OC has a higher pixel rate than the average graphics card (459.4 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.459.36 GPixel/s vs 165.2 GPixel/s
  • 320 more AI cores
    ASUS ROG Strix GeForce RTX 4090 OC has more AI cores than the average graphics card (512 vs 192). The average graphics card has 192 AI cores.
    What it is: Number of tensor or AI processing cores
    When it matters: When AI features, frame generation, or creator tools use dedicated matrix hardware.

    Importance: MEDIUM

    ASUS ROG Strix GeForce RTX 4090 OC has more AI cores than the average graphics card (512 vs 192). The average graphics card has 192 AI cores.512 vs 192
  • 88 more compute units
    ASUS ROG Strix GeForce RTX 4090 OC has more compute units than the average graphics card (128 vs 40). The average graphics card has 40 compute units.
  • 80 more ray tracing cores
    ASUS ROG Strix GeForce RTX 4090 OC has more ray tracing cores than the average graphics card (128 vs 48). The average graphics card has 48 ray tracing cores.
  • 112 more ROPs
    ASUS ROG Strix GeForce RTX 4090 OC has more ROPs than the average graphics card (176 vs 64). The average graphics card has 64 ROPs.
  • 328 more TMUs
    ASUS ROG Strix GeForce RTX 4090 OC has more TMUs than the average graphics card (512 vs 184). The average graphics card has 184 TMUs.
  • 2.78x higher pixel rate
    ASUS ROG Strix GeForce RTX 4090 OC has a higher pixel rate than the average graphics card (459.4 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.
  • 320 more AI cores
    ASUS ROG Strix GeForce RTX 4090 OC has more AI cores than the average graphics card (512 vs 192). The average graphics card has 192 AI cores.
  • 4.4% higher boost clock speed
    ASUS ROG Strix GeForce RTX 4090 OC has a higher boost GPU clock than the average graphics card (2,610 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
  • 3.74x higher FP32 performance
    ASUS ROG Strix GeForce RTX 4090 OC has a higher FP32 performance than the average graphics card (85.5 TFLOPS vs 22.86 TFLOPS). The average graphics card has FP32 performance of 22.86 TFLOPS.
  • 2.62x higher ray tracing score
    ASUS ROG Strix GeForce RTX 4090 OC has a higher ray tracing score than the average graphics card (26,070 points vs 9,938.5 points). The average graphics card has a ray tracing score of 9,938.5 points.
  • 3.29x higher gaming score
    ASUS ROG Strix GeForce RTX 4090 OC has a higher gaming score than the average graphics card (37,354 points vs 11,337 points). The average graphics card has a gaming score of 11,337 points.
  • 16.4% higher base clock speed
    ASUS ROG Strix GeForce RTX 4090 OC has a higher base GPU clock than the average graphics card (2,235 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.
  • 12,032 more FP32 units
    ASUS ROG Strix GeForce RTX 4090 OC has more FP32 units than the average graphics card (16,384 vs 4,352). The average graphics card has 4,352 FP32 units.
  • 3.7x higher compute throughput
    ASUS ROG Strix GeForce RTX 4090 OC has a higher compute throughput than the average graphics card (85.5 TFLOPS vs 23.105 TFLOPS). The average graphics card has compute throughput of 23.105 TFLOPS.
  • 2.9x higher FP16 performance
    ASUS ROG Strix GeForce RTX 4090 OC has a higher FP16 performance than the average graphics card (85.5 TFLOPS vs 29.5 TFLOPS). The average graphics card has FP16 performance of 29.5 TFLOPS.
  • 2.87x higher FP64 performance
    ASUS ROG Strix GeForce RTX 4090 OC has a higher FP64 performance than the average graphics card (1.3 TFLOPS vs 0.4651 TFLOPS). The average graphics card has FP64 performance of 0.4651 TFLOPS.
  • 2.25x higher memory bandwidth
    ASUS ROG Strix GeForce RTX 4090 OC has a higher memory bandwidth than the average graphics card (1,008 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
  • 12 GB more VRAM
    ASUS ROG Strix GeForce RTX 4090 OC has more VRAM than the average graphics card (24 GB vs 12 GB). The average graphics card has 12 GB VRAM.
  • 128 bit wider memory bus
    ASUS ROG Strix GeForce RTX 4090 OC has a wider memory bus than the average graphics card (384 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.
  • Supports ECC memory
    ASUS ROG Strix GeForce RTX 4090 OC supports ECC memory, the average graphics card does not.
  • 2.25x larger L2 cache
    ASUS ROG Strix GeForce RTX 4090 OC has more L2 cache than the average graphics card (72 MB vs 32 MB). The average graphics card has 32 MB L2 cache.
  • 10.5% faster memory speed
    ASUS ROG Strix GeForce RTX 4090 OC has a higher effective memory speed than the average graphics card (21,000 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.
  • 12.5% more Infinity Cache
    ASUS ROG Strix GeForce RTX 4090 OC has more Infinity Cache than the average graphics card (72 MB vs 64 MB). The average graphics card has 64 MB Infinity Cache.
  • 20% smaller process node
    ASUS ROG Strix GeForce RTX 4090 OC has a lower process node than the average graphics card (4 nm vs 5 nm). The average graphics card uses a process node of 5 nm.
  • 3.48x more transistors
    ASUS ROG Strix GeForce RTX 4090 OC has more transistors than the average graphics card (76,300 million vs 21,900 million). The average graphics card has 21,900 million transistors.
  • Newer shader model
    ASUS ROG Strix GeForce RTX 4090 OC supports a newer shader model than the average graphics card (6.9 vs 6.8).
  • Newer HDMI version
    ASUS ROG Strix GeForce RTX 4090 OC supports a newer HDMI version than the average graphics card (2.1a vs 2.1).
  • Includes dual BIOS
    ASUS ROG Strix GeForce RTX 4090 OC includes dual BIOS, the average graphics card does not.

Total
Overall
Performance
Memory
Platform & Features
Connectivity & Media
Power & Cooling
  • 25% slower VRAM clock
    ASUS ROG Strix GeForce RTX 4090 OC has a lower VRAM clock than the average graphics card (1,313 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
  • 2x larger GPU die
    ASUS ROG Strix GeForce RTX 4090 OC has a higher GPU die size than the average graphics card (609 mm² vs 304.25 mm²). The average graphics card has a GPU die size of 304.25 mm².
  • 1 older
    ASUS ROG Strix GeForce RTX 4090 OC was released earlier than the average graphics card (2,022 vs 2,023).
  • 2.09x higher TDP
    ASUS ROG Strix GeForce RTX 4090 OC has a higher TDP than the average graphics card (450 W vs 215 W). The average graphics card has a TDP of 215 W.
  • 53.8% higher PSU requirement
    ASUS ROG Strix GeForce RTX 4090 OC has a higher PSU requirement than the average graphics card (1,000 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
  • 2.73x higher board power limit
    ASUS ROG Strix GeForce RTX 4090 OC has a higher board power limit than the average graphics card (600 W vs 220 W). The average graphics card has a board power limit of 220 W.
  • 2.59x higher peak power draw
    ASUS ROG Strix GeForce RTX 4090 OC has a higher peak power draw than the average graphics card (569 W vs 220 W). The average graphics card has a peak power draw of 220 W.
  • 1.5 slot/s wider design
    ASUS ROG Strix GeForce RTX 4090 OC occupies more slots than the average graphics card (3.5 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
  • 72.23 mm longer card length
    ASUS ROG Strix GeForce RTX 4090 OC is longer than the average graphics card (357.6 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.
  • 22.3 mm higher card profile
    ASUS ROG Strix GeForce RTX 4090 OC is taller than the average graphics card (149.3 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • 2.51x heavier card weight
    ASUS ROG Strix GeForce RTX 4090 OC is heavier than the average graphics card (2,504 g vs 998 g). The average graphics card weighs 998 g.
  • 2.09x higher TDP
    ASUS ROG Strix GeForce RTX 4090 OC has a higher TDP than the average graphics card (450 W vs 215 W). The average graphics card has a TDP of 215 W.
    What it is: Typical power consumption under full load (TDP)
    When it matters: When you need a realistic idea of power draw before choosing a PSU or case.

    Importance: MEDIUM

    ASUS ROG Strix GeForce RTX 4090 OC has a higher TDP than the average graphics card (450 W vs 215 W). The average graphics card has a TDP of 215 W.450 W vs 215 W
  • 1.5 slot/s wider design
    ASUS ROG Strix GeForce RTX 4090 OC occupies more slots than the average graphics card (3.5 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
    What it is: Number of PCIe slots occupied by the card
    When it matters: When you need room for another PCIe card or better airflow under the GPU.

    Importance: LOW

    ASUS ROG Strix GeForce RTX 4090 OC occupies more slots than the average graphics card (3.5 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.3.5 slot/s vs 2 slot/s
  • 53.8% higher PSU requirement
    ASUS ROG Strix GeForce RTX 4090 OC has a higher PSU requirement than the average graphics card (1,000 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
    What it is: Recommended wattage of the system power supply
    When it matters: When you are checking whether your current power supply is enough.

    Importance: LOW

    ASUS ROG Strix GeForce RTX 4090 OC has a higher PSU requirement than the average graphics card (1,000 W vs 650 W). The average graphics card has a PSU requirement of 650 W.1000 W vs 650 W
  • 72.23 mm longer card length
    ASUS ROG Strix GeForce RTX 4090 OC is longer than the average graphics card (357.6 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.
    What it is: Physical length of the GPU card
    When it matters: When front radiators or drive cages leave only limited GPU clearance.

    Importance: LOW

    ASUS ROG Strix GeForce RTX 4090 OC is longer than the average graphics card (357.6 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.357.6 mm vs 285.37 mm
  • 22.3 mm higher card profile
    ASUS ROG Strix GeForce RTX 4090 OC is taller than the average graphics card (149.3 mm vs 127 mm). The average graphics card has a height of 127 mm.
    What it is: Physical height of the GPU card
    When it matters: When side panels, brackets, or tight case layouts reduce vertical clearance.

    Importance: LOW

    ASUS ROG Strix GeForce RTX 4090 OC is taller than the average graphics card (149.3 mm vs 127 mm). The average graphics card has a height of 127 mm.149.3 mm vs 127 mm
  • 2.73x higher board power limit
    ASUS ROG Strix GeForce RTX 4090 OC has a higher board power limit than the average graphics card (600 W vs 220 W). The average graphics card has a board power limit of 220 W.
    What it is: Maximum configurable power limit for the GPU board
    When it matters: When you care about how far the card can be pushed through tuning or factory power settings.

    Importance: LOW

    ASUS ROG Strix GeForce RTX 4090 OC has a higher board power limit than the average graphics card (600 W vs 220 W). The average graphics card has a board power limit of 220 W.600 W vs 220 W
  • 25% slower VRAM clock
    ASUS ROG Strix GeForce RTX 4090 OC has a lower VRAM clock than the average graphics card (1,313 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
    What it is: Speed at which the GPU memory operates
    When it matters: When you want more context on how quickly the card's VRAM can move data.

    Importance: LOW

    ASUS ROG Strix GeForce RTX 4090 OC has a lower VRAM clock than the average graphics card (1,313 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.1313 MHz vs 1750 MHz
  • 5.3x more expensive
    ASUS ROG Strix GeForce RTX 4090 OC is more expensive than the average graphics card (£2,810 vs £530).
    ASUS ROG Strix GeForce RTX 4090 OC is more expensive than the average graphics card (£2,810 vs £530).£2,810 vs £530
Total
Overall
Memory
Platform & Features
Power & Cooling
Design

Graphic comparison of ASUS ROG Strix GeForce RTX 4090 OC and

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Third-party reviews

United Kingdom
amazon
4.3
325 Reviews
amazon
4.8
136 Reviews
United States
Amazon_logo.png
4.7
15 Reviews

(Reviews last updated: June 2026)

What customers like about ASUS ROG Strix GeForce RTX 4090 OC?

  • Exceptional 4K and 8K gaming performance
  • Highly effective cooling system that keeps temperatures low even under heavy load
  • Very quiet operation compared to other RTX 4090 models
  • Premium build quality with a rigid metal frame and high-quality materials
  • Includes dual HDMI 2.1 ports for better connectivity options
  • Solid factory overclock and additional headroom for manual tuning

What customers dislike about ASUS ROG Strix GeForce RTX 4090 OC?

  • Extremely expensive, carrying a significant 'ASUS tax' premium
  • Massive physical dimensions requiring a very large (full tower) case
  • High power consumption that often requires a 1000W+ power supply
  • Persistent reports of audible coil whine in some units
  • Lack of DisplayPort 2.0 support, which limits future monitor compatibility

Expert reviews

S
servethehome.com
12/02/2023
ASUS ROG Strix GeForce RTX 4090 OC Review A Monster GPU

The ServeTheHome review highlights the ASUS ROG Strix NVIDIA GeForce RTX 4090 OC as a powerhouse capable of outperforming dual RTX 3090 setups, offering exceptional thermal performance via a massive vapor chamber and a highly rigid, premium build. Key pros include this industry-leading performance and robust cooling that keeps noise low during intensive workloads, ideal for...Read more

H
hardwarezone.com.sg
31/10/2022
ASUS ROG Strix GeForce RTX 4090 OC review: Fast and furious

The HardwareZone Singapore Review highlights the ASUS ROG Strix GeForce RTX 4090 OC as a top-tier custom graphics card that pairs a factory-overclocked boost speed of 2,640MHz with a drastically overhauled aesthetic featuring rounded corners, subtle RGB lighting, and purple detailing. A major pro emphasized in the review is its custom 3.5-slot, triple 104mm fan cooling solution,...Read more

T
tomshardware.com
24/10/2022
Asus RTX 4090 ROG Strix OC Review: Truly Massive

The Asus RTX 4090 ROG Strix OC is a colossally large graphics card that sets a high bar for cooling efficiency and build quality, though it requires a significant premium and massive chassis space. Measuring 358 x 149 x 70mm and weighing over 2.5kg, this 3.5-slot card completely dwarfs Nvidia’s Founders Edition and occupies roughly four physical expansion slots. Its massive heatsink...Read more

P
pcdiy.com.au
13/10/2022
ASUS ROG Strix GeForce RTX 4090 OC Edition Review

The ASUS ROG Strix GeForce RTX 4090 OC Edition is a premier Ada Lovelace GPU offering top-tier 4K/8K gaming performance, a 24-phase VRM, and a massive 3.5-slot cooler that keeps the card quiet and cool. Pros include exceptional factory-overclocked speeds, robust build quality, and added features like dual BIOS and fan headers. However, the card faces drawbacks in its high cost and...Read more

T
tweaktown.com
12/10/2022
ASUS ROG Strix GeForce RTX 4090 OC EditionGo to product viewer dialog for this item. Review

The ASUS ROG Strix GeForce RTX 4090 OC Edition is a massive 3.5-slot graphics card engineered to deliver top-tier 4K 120FPS+ and 8K 60FPS gaming performance. Built on NVIDIA's Ada Lovelace architecture with 24GB of GDDR6X memory, this card utilizes a patented vapor chamber cooler and a triple-fan design to maintain exceptionally low temperatures under load. During testing, the GPU...Read more

T
techpowerup.com
12/10/2022
ASUS GeForce RTX 4090 STRIX OCGo to product viewer dialog for this item. Review

The TechPowerUp review of the ASUS GeForce RTX 4090 STRIX OC highlights it as a premium, high-performance card featuring excellent thermals, low noise, and a 500W power limit for high overclocking headroom. Pros include a 45% performance gain over the 3090 Ti at 4K, an advanced vapor chamber cooler, dual BIOS, and additional functionality. Notable cons for the $2,000 card include...Read more

W
wepc.com
29/04/2026
ASUS ROG Strix OC RTX 4090 review These English-language reviews analyze the ASUS ROG Strix GeForce RTX 4090 OC Edition (ROG-STRIX-RTX4090-O24G-GAMING...

The WePC review of the ASUS ROG Strix OC RTX 4090 highlights it as a top-tier Ada Lovelace GPU, offering industry-leading performance for 4K and 8K gaming with a 2,640 MHz boost clock and 24GB GDDR6X. Key advantages include an exceptional air-cooling solution, featuring a redesigned shroud and vapor chamber that manages thermals effectively while supporting heavy overclocking....Read more

P
pcgamer.com
29/04/2026
Asus ROG Strix GeForce RTX 4090 OC review

The Asus ROG Strix GeForce RTX 4090 OC is an exceptionally powerful, premium graphics card that targets the absolute highest tier of PC enthusiasts. Built on the Nvidia AD102 architecture, this massive 3.5-slot card features a factory overclock pushing boost clocks up to 2,610MHz, alongside a robust 24-phase VRM design engineered for extreme power delivery. In performance testing,...Read more

M
mmorpg.com
12/10/2022
ASUS ROG Strix GeForce RTX 4090 OC Edition Review

The ASUS ROG Strix GeForce RTX 4090 OC Edition is a premium, factory-overclocked flagship that outperforms standard models through superior cooling and silent acoustics, according to MMORPG.com. Its 3.5-slot design, vapor chamber, and high boost clocks (up to 2.64GHz) provide exceptional performance and thermal management, along with dual BIOS options for performance or silence....Read more

F
fr.gamegpu.com
20/03/2023
Examen et test de la carte vidéo Asus ROG Strix GeForce RTX 4090 Gaming OC

The Asus ROG Strix GeForce RTX 4090 Gaming OC is a massive, high-end graphics card that occupies 3.5 PCI-E slots and delivers unmatched performance in modern AAA gaming. Powered by the Ada Lovelace architecture, it features 24GB of GDDR6X memory, a 72MB L2 cache, and premium clock speeds that dynamically boost up to 2870 MHz in-game. In benchmark testing at maximum settings with ray...Read more

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