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ASUS TUF GeForce RTX 4090 OC Review | 118 Data compared

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  • Avg. price in UK: ~£2,810
  • Avg. price in US: ~$1,800
  • VRAM: 24 GB
  • Memory bus width: 384 bit
  • Thermal Design Power (TDP): 450 W

ASUS TUF 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.

8.2

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%

8.0

Technical Score

10.0%

9.2

User score

Excellent
8.0

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%

8.9

Performance

24.0%

8.5

Memory

12.0%

4.7

Power & Cooling

11.0%

8.5

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%

8.8

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(187)
United States
Amazon_logo.png
4.4
(189)
Amazon_logo.png
4.4
(146)

(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

  • asus-tuf-geforce-rtx-4090-oc
asus-tuf-geforce-rtx-4090-oc

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 TUF Gaming GeForce RTX 4090 OC is a powerhouse graphics card built on the NVIDIA Ada Lovelace architecture, featuring 16,384 CUDA cores and 24GB of high-speed GDDR6X memory on a 384-bit interface. This OC edition offers a factory-overclocked boost clock of 2565 MHz (reaching 2595 MHz in OC mode) and utilizes a massive 3.65-slot cooling solution with triple Axial-tech fans and a vented metal exoskeleton for superior heat dissipation. Its main advantages include industry-leading 4K/8K gaming performance, exceptional build quality with military-grade 20K-rated capacitors, and a dual BIOS for choosing between performance or near-silent operation. However, the card's immense physical size (348.2 mm length) can make it difficult to fit in smaller cases, and it carries a high power requirement with a recommended 850W PSU and a peak power limit that can reach 600W during heavy overclocking.

Technical Specifications of ASUS TUF 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%

8.9

Performance

24.0%

8.5

Memory

12.0%

4.7

Power & Cooling

11.0%

8.5

Platform & Features

5.0%

4.3

Design

4.0%

9.4

Connectivity & Media

8.0
ASUS TUF GeForce RTX 4090 OC has a technical score of 8.04 points, which is higher than that of 79.7% 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%

8.8

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(187)
United States
Amazon_logo.png
4.4
(189)
Amazon_logo.png
4.4
(146)

(Reviews last updated: June 2026)

9.2
ASUS TUF GeForce RTX 4090 OC has a user score of 9.16 points, which is higher than that of 80.1% 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 TUF 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%

8.2

Overall score

40.0%

1.0

Price

6.0
ASUS TUF GeForce RTX 4090 OC has a quality-to-price ratio of 6 points, which is lower than 82% 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

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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

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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

85.04 TFLOPS
ASUS TUF GeForce RTX 4090 OC delivers 85.04 TFLOPS floating-point performance, which is higher than that of 96.5% 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 TUF 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 TUF 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 TUF 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

1,018 GB/s
ASUS TUF GeForce RTX 4090 OC reaches 1018 GB/s memory bandwidth, which is higher than that of 96.6% of graphics cards and equal to that of 0.5% 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 TUF 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 TUF 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

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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 TUF 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 TUF 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 TUF 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 TUF 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 TUF 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 TUF 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 TUF 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

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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

850 W
ASUS TUF GeForce RTX 4090 OC recommends a 850 W PSU, which is higher than that of 81.6% of graphics cards and equal to that of 13.4% 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 TUF 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

348.2 x 150 x 72.6 mm
ASUS TUF GeForce RTX 4090 OC measures 348.2x150 x 72.6 mm, which is more compact than 82.9% of graphics cards and equal in size to 0.1% of graphics cards.
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

348.2 mm
ASUS TUF GeForce RTX 4090 OC is 348.2 mm long, which is longer than 94.8% of graphics cards and equal in length to 0.3% 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

150 mm
ASUS TUF GeForce RTX 4090 OC is 150 mm tall, which is taller than 92.5% of graphics cards and equal in height to 2.7% 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

3.65 slot/s
ASUS TUF GeForce RTX 4090 OC occupies 3.65 slot/s, which is wider than 97% of graphics cards and equal in width to 0.2% 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

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ASUS TUF GeForce RTX 4090 OC vs the average graphics card

  • 88 more compute units
    ASUS TUF 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 TUF 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 TUF 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 TUF 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
  • 2.27x higher memory bandwidth
    ASUS TUF GeForce RTX 4090 OC has a higher memory bandwidth than the average graphics card (1,018 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 TUF GeForce RTX 4090 OC has a higher memory bandwidth than the average graphics card (1,018 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.1018 GB/s vs 448 GB/s
  • 12 GB more VRAM
    ASUS TUF 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 TUF 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 TUF 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 TUF 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 TUF 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 TUF 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
  • 2.73x higher pixel rate
    ASUS TUF GeForce RTX 4090 OC has a higher pixel rate than the average graphics card (451.4 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 TUF GeForce RTX 4090 OC has a higher pixel rate than the average graphics card (451.4 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.451.44 GPixel/s vs 165.2 GPixel/s
  • 320 more AI cores
    ASUS TUF 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 TUF 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 TUF 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 TUF 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 TUF 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 TUF GeForce RTX 4090 OC has more TMUs than the average graphics card (512 vs 184). The average graphics card has 184 TMUs.
  • 2.73x higher pixel rate
    ASUS TUF GeForce RTX 4090 OC has a higher pixel rate than the average graphics card (451.4 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 TUF GeForce RTX 4090 OC has more AI cores than the average graphics card (512 vs 192). The average graphics card has 192 AI cores.
  • 3.72x higher FP32 performance
    ASUS TUF GeForce RTX 4090 OC has a higher FP32 performance than the average graphics card (85 TFLOPS vs 22.86 TFLOPS). The average graphics card has FP32 performance of 22.86 TFLOPS.
  • 2.6% higher boost clock speed
    ASUS TUF GeForce RTX 4090 OC has a higher boost GPU clock than the average graphics card (2,565 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
  • 16.4% higher base clock speed
    ASUS TUF 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 TUF 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.
  • 3.68x higher compute throughput
    ASUS TUF GeForce RTX 4090 OC has a higher compute throughput than the average graphics card (85 TFLOPS vs 23.105 TFLOPS). The average graphics card has compute throughput of 23.105 TFLOPS.
  • 2.8x higher FP16 performance
    ASUS TUF GeForce RTX 4090 OC has a higher FP16 performance than the average graphics card (82.6 TFLOPS vs 29.5 TFLOPS). The average graphics card has FP16 performance of 29.5 TFLOPS.
  • 2.89x higher INT8 performance
    ASUS TUF GeForce RTX 4090 OC has a higher INT8 performance than the average graphics card (1,345 TOPS vs 466 TOPS). The average graphics card has INT8 performance of 466 TOPS.
  • 2.27x higher memory bandwidth
    ASUS TUF GeForce RTX 4090 OC has a higher memory bandwidth than the average graphics card (1,018 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
  • 12 GB more VRAM
    ASUS TUF 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 TUF 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 TUF GeForce RTX 4090 OC supports ECC memory, the average graphics card does not.
  • 2.25x larger L2 cache
    ASUS TUF 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 TUF 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.
  • 20% smaller process node
    ASUS TUF 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 TUF 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 TUF GeForce RTX 4090 OC supports a newer shader model than the average graphics card (6.9 vs 6.8).
  • Newer HDMI version
    ASUS TUF GeForce RTX 4090 OC supports a newer HDMI version than the average graphics card (2.1a vs 2.1).
  • Includes dual BIOS
    ASUS TUF 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 TUF 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 TUF 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 TUF GeForce RTX 4090 OC was released earlier than the average graphics card (2,022 vs 2,023).
  • Narrower decode codec support
    ASUS TUF GeForce RTX 4090 OC supports narrower hardware decode codec support than the average graphics card (H.264 vs H.264/H.265/AV1/VP9).
  • 2.09x higher TDP
    ASUS TUF 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.
  • 30.8% higher PSU requirement
    ASUS TUF GeForce RTX 4090 OC has a higher PSU requirement than the average graphics card (850 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
  • 2.73x higher board power limit
    ASUS TUF 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.
  • 63.6% higher idle power draw
    ASUS TUF GeForce RTX 4090 OC has a higher idle power draw than the average graphics card (18 W vs 11 W). The average graphics card has an idle power draw of 11 W.
  • 1.65 slot/s wider design
    ASUS TUF GeForce RTX 4090 OC occupies more slots than the average graphics card (3.7 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
  • 62.83 mm longer card length
    ASUS TUF GeForce RTX 4090 OC is longer than the average graphics card (348.2 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.
  • 23 mm higher card profile
    ASUS TUF GeForce RTX 4090 OC is taller than the average graphics card (150 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • 2.09x higher TDP
    ASUS TUF 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 TUF 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
  • 1.65 slot/s wider design
    ASUS TUF GeForce RTX 4090 OC occupies more slots than the average graphics card (3.7 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 TUF GeForce RTX 4090 OC occupies more slots than the average graphics card (3.7 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.3.65 slot/s vs 2 slot/s
  • 30.8% higher PSU requirement
    ASUS TUF GeForce RTX 4090 OC has a higher PSU requirement than the average graphics card (850 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 TUF GeForce RTX 4090 OC has a higher PSU requirement than the average graphics card (850 W vs 650 W). The average graphics card has a PSU requirement of 650 W.850 W vs 650 W
  • 62.83 mm longer card length
    ASUS TUF GeForce RTX 4090 OC is longer than the average graphics card (348.2 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 TUF GeForce RTX 4090 OC is longer than the average graphics card (348.2 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.348.2 mm vs 285.37 mm
  • 23 mm higher card profile
    ASUS TUF GeForce RTX 4090 OC is taller than the average graphics card (150 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 TUF GeForce RTX 4090 OC is taller than the average graphics card (150 mm vs 127 mm). The average graphics card has a height of 127 mm.150 mm vs 127 mm
  • 2.73x higher board power limit
    ASUS TUF 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 TUF 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 TUF 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 TUF 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 TUF GeForce RTX 4090 OC is more expensive than the average graphics card (£2,810 vs £530).
    ASUS TUF GeForce RTX 4090 OC is more expensive than the average graphics card (£2,810 vs £530).£2,810 vs £530
Total
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Platform & Features
Connectivity & Media
Power & Cooling
Design

Graphic comparison of ASUS TUF GeForce RTX 4090 OC and

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Third-party reviews

United Kingdom
amazon
4.4
187 Reviews
United States
Amazon_logo.png
4.4
189 Reviews
Amazon_logo.png
4.4
146 Reviews

(Reviews last updated: June 2026)

What customers like about ASUS TUF GeForce RTX 4090 OC?

  • Exceptional performance in 4K and 8K gaming, easily handling demanding titles like Cyberpunk 2077 and Starfield at max settings.
  • Robust all-metal build quality featuring a sturdy aluminium shroud and backplate.
  • Highly effective cooling system that keeps temperatures under heavy load significantly lower than previous generations (often staying below 60-65°C).
  • Whisper-quiet operation in standard use, with fans that stop completely during low-load tasks.
  • Minimalist and sleek aesthetic with subtle RGB lighting that appeals to users who prefer a less 'flashy' look.
  • Includes dual-HDMI 2.1 ports, providing more flexibility for multi-monitor or VR setups compared to many competitors.

What customers dislike about ASUS TUF GeForce RTX 4090 OC?

  • Frequent reports of noticeable coil whine, particularly at high frame rates, which can be distracting for noise-sensitive users.
  • Massive physical dimensions (3.65-slot design) that require a very large case and may block access to other PCIe slots.
  • Extremely high price point makes it a significant investment that some users find difficult to justify over the non-OC model.
  • Heavy weight necessitates the use of a GPU support bracket to prevent sagging or damage to the motherboard.
  • High power requirements (450W+ TDP) often mandate a high-quality 850W-1000W+ power supply and specific 12VHPWR cable management.

Expert reviews

S
servethehome.com
26/02/2023
ASUS TUF Gaming GeForce RTX 4090 OC Edition Review

The ServeTheHome review identifies the ASUS TUF Gaming GeForce RTX 4090 OC as a high-value alternative to the ROG Strix, delivering nearly identical performance and 24GB GDDR6X VRAM for compute-intensive tasks at a lower ~$1,750 MSRP. Key advantages include its slightly shorter, more case-compatible form factor while maintaining robust performance for gaming and professional...Read more

K
kitguru.net
01/11/2022
ASUS RTX 4090 TUF Gaming OC Review

The ASUS RTX 4090 TUF Gaming OC is evaluated by KitGuru as a premium, highly aesthetic graphics card, earning an overall review score of 8.5 out of 10. Built on Nvidia's 4nm TSMC node, the card boasts massive architectural advancements over its predecessors, packing 16,384 CUDA cores, 512 Tensor cores, and 128 RT cores. Prominent pros highlighted in the review include its hefty,...Read more

W
windowscentral.com
12/10/2022
ASUS TUF Gaming GeForce RTX 4090 OC review

The ASUS TUF Gaming GeForce RTX 4090 OC Edition is an exceptionally powerful, premium graphics card that delivers unbelievable performance, making stable 4K and even 8K gaming a reality. Built on NVIDIA’s Ada Lovelace architecture, it features a massive 50% increase in CUDA cores over its predecessor, alongside 24GB of GDDR6X memory. This model positions itself as a sleek,...Read more

G
guru3d.com
12/10/2022
ASUS TUF GeForce RTX 4090 Gaming review

The Guru3D review evaluates the ASUS TUF GeForce RTX 4090 Gaming OC, a flagship graphics card built on NVIDIA’s Ada Lovelace GPU architecture. It features an impressive 16,384 Shader cores, 24 GB of GDDR6X memory, and a 384-bit memory bus. Shipped with a factory overclock of 2565 MHz, the card easily hits up to 3.0 GHz when manually tweaked. The card features a semi-passive cooling...Read more

T
tomshardware.fr
12/10/2022
Test Asus TUF RTX 4090 OC : 2,4 kg pour des performances stratosphériques

The Asus TUF RTX 4090 OC is a massive, high-end graphics card weighing 2.4 kg and measuring 34.5 x 13.5 cm, requiring nearly four expansion slots (3.65 slots) due to its thick custom cooling shroud. Built on NVIDIA’s Ada Lovelace architecture, it features 16,384 CUDA cores and 24 GB of GDDR6X VRAM. It comes with a factory overclock that pushes the boost clock to 2,585 MHz in OC mode...Read more

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