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GIGABYTE GeForce RTX 4090 Gaming OC Review | 118 Data compared

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  • Avg. price in UK: ~£1,940
  • Avg. price in US: ~$2,760
  • VRAM: 24 GB
  • Memory bus width: 384 bit
  • Thermal Design Power (TDP): 450 W

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

8.4

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%

8.4

Technical Score

10.0%

9.2

User score

Excellent
8.4

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%

8.3

Memory

12.0%

7.1

Power & Cooling

11.0%

9.2

Platform & Features

5.0%

4.4

Design

4.0%

9.5

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
4.4
(264)
amazon
4.5
(211)
United States
Amazon_logo.png
4.4
(284)
Amazon_logo.png
4.5
(148)

(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 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 Gigabyte GeForce RTX 4090 Gaming OC is a high-end flagship graphics card featuring the NVIDIA Ada Lovelace architecture, 16,384 CUDA cores, and 24GB of GDDR6X memory on a 384-bit interface. It features a factory overclocked boost clock of 2535 MHz and a robust Windforce cooling system with three 110mm alternate-spinning fans, 10 composite copper heat pipes, and a large vapor chamber to manage its high thermal demands. Main pros include its exceptional 4K and 8K gaming performance, advanced DLSS 3 support with frame generation, a high power limit of up to 600W for overclocking, and a dual BIOS for choosing between performance and silent modes. However, its massive physical size—measuring approximately 340mm in length and occupying nearly four expansion slots—makes it difficult to fit in smaller cases, and the plastic shroud can feel less premium than aluminum alternatives found on competing models.

Technical Specifications of GIGABYTE GeForce RTX 4090 Gaming 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%

8.3

Memory

12.0%

7.1

Power & Cooling

11.0%

9.2

Platform & Features

5.0%

4.4

Design

4.0%

9.5

Connectivity & Media

8.4
GIGABYTE GeForce RTX 4090 Gaming OC has a technical score of 8.36 points, which is higher than that of 87% 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
4.4
(264)
amazon
4.5
(211)
United States
Amazon_logo.png
4.4
(284)
Amazon_logo.png
4.5
(148)

(Reviews last updated: June 2026)

9.2
GIGABYTE GeForce RTX 4090 Gaming OC has a user score of 9.22 points, which is higher than that of 82.4% 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
GIGABYTE GeForce RTX 4090 Gaming 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%

8.4

Overall score

40.0%

1.0

Price

6.2
GIGABYTE GeForce RTX 4090 Gaming OC has a quality-to-price ratio of 6.2 points, which is lower than 75.6% 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

83.07 TFLOPS
GIGABYTE GeForce RTX 4090 Gaming OC delivers 83.07 TFLOPS floating-point performance, which is higher than that of 95% of graphics cards and equal to that of 0.2% 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
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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

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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
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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

7680x4320
GIGABYTE GeForce RTX 4090 Gaming OC supports a maximum digital resolution of 7680x4320, which is higher than that of 44.4% of graphics cards and equal to that of 55.6% of graphics cards.
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
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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

32.4 Gbps
GIGABYTE GeForce RTX 4090 Gaming OC supports DisplayPort link rates up to 32.4 Gbps, which is faster than on 58.3% of graphics cards and equal to 24% 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
GIGABYTE GeForce RTX 4090 Gaming 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

1,000 W
GIGABYTE GeForce RTX 4090 Gaming 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
GIGABYTE GeForce RTX 4090 Gaming 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

340 x 150.2 x 75.2 mm
GIGABYTE GeForce RTX 4090 Gaming OC measures 340x150.2 x 75.2 mm, which is more compact than 82.7% 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

340 mm
GIGABYTE GeForce RTX 4090 Gaming OC is 340 mm long, which is longer than 92.2% of graphics cards and equal in length to 0.6% 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

150.2 mm
GIGABYTE GeForce RTX 4090 Gaming OC is 150.2 mm tall, which is taller than 95.5% of graphics cards and equal in height to 0.1% 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

4 slot/s
GIGABYTE GeForce RTX 4090 Gaming OC occupies 4 slot/s, which is wider than 97.9% of graphics cards and equal in width to 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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GIGABYTE GeForce RTX 4090 Gaming OC vs the average graphics card

  • 88 more compute units
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming OC has more TMUs than the average graphics card (512 vs 184). The average graphics card has 184 TMUs.512 vs 184
  • 2.68x higher pixel rate
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher pixel rate than the average graphics card (443.5 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

    GIGABYTE GeForce RTX 4090 Gaming OC has a higher pixel rate than the average graphics card (443.5 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.443.5 GPixel/s vs 165.2 GPixel/s
  • 320 more AI cores
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming OC has more ROPs than the average graphics card (176 vs 64). The average graphics card has 64 ROPs.
  • 328 more TMUs
    GIGABYTE GeForce RTX 4090 Gaming OC has more TMUs than the average graphics card (512 vs 184). The average graphics card has 184 TMUs.
  • 2.68x higher pixel rate
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher pixel rate than the average graphics card (443.5 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.
  • 320 more AI cores
    GIGABYTE GeForce RTX 4090 Gaming OC has more AI cores than the average graphics card (512 vs 192). The average graphics card has 192 AI cores.
  • 3.63x higher FP32 performance
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher FP32 performance than the average graphics card (83.1 TFLOPS vs 22.86 TFLOPS). The average graphics card has FP32 performance of 22.86 TFLOPS.
  • 16.4% higher base clock speed
    GIGABYTE GeForce RTX 4090 Gaming 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.
  • 1.4% higher boost clock speed
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher boost GPU clock than the average graphics card (2,535 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
  • 12,032 more FP32 units
    GIGABYTE GeForce RTX 4090 Gaming OC has more FP32 units than the average graphics card (16,384 vs 4,352). The average graphics card has 4,352 FP32 units.
  • 3.6x higher compute throughput
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher compute throughput than the average graphics card (83.1 TFLOPS vs 23.105 TFLOPS). The average graphics card has compute throughput of 23.105 TFLOPS.
  • 2.82x higher FP16 performance
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher FP16 performance than the average graphics card (83.1 TFLOPS vs 29.5 TFLOPS). The average graphics card has FP16 performance of 29.5 TFLOPS.
  • 2.83x higher INT8 performance
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher INT8 performance than the average graphics card (1,321 TOPS vs 466 TOPS). The average graphics card has INT8 performance of 466 TOPS.
  • 2.27x higher memory bandwidth
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming OC supports ECC memory, the average graphics card does not.
  • 2.25x larger L2 cache
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming OC supports a newer shader model than the average graphics card (6.9 vs 6.8).
  • Newer HDMI version
    GIGABYTE GeForce RTX 4090 Gaming OC supports a newer HDMI version than the average graphics card (2.1a vs 2.1).
  • Broader encode codec support
    GIGABYTE GeForce RTX 4090 Gaming OC supports broader hardware encode codec support than the average graphics card (AV1 vs H.264).
  • Includes dual BIOS
    GIGABYTE GeForce RTX 4090 Gaming OC includes dual BIOS, the average graphics card does not.

Total
Overall
Performance
Memory
Platform & Features
Connectivity & Media
Power & Cooling
  • 2x larger GPU die
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming OC was released earlier than the average graphics card (2,022 vs 2,023).
  • 2.09x higher TDP
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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
    GIGABYTE GeForce RTX 4090 Gaming 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.
  • 90.9% higher idle power draw
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher idle power draw than the average graphics card (21 W vs 11 W). The average graphics card has an idle power draw of 11 W.
  • 6 °C higher idle temperature
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher idle temperature than the average graphics card (44 °C vs 38 °C). The average graphics card has an idle temperature of 38 °C.
  • 2 slot/s wider design
    GIGABYTE GeForce RTX 4090 Gaming OC occupies more slots than the average graphics card (4 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
  • 23.2 mm higher card profile
    GIGABYTE GeForce RTX 4090 Gaming OC is taller than the average graphics card (150.2 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • 54.63 mm longer card length
    GIGABYTE GeForce RTX 4090 Gaming OC is longer than the average graphics card (340 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.
  • 2.09x higher TDP
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
  • 2 slot/s wider design
    GIGABYTE GeForce RTX 4090 Gaming OC occupies more slots than the average graphics card (4 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

    GIGABYTE GeForce RTX 4090 Gaming OC occupies more slots than the average graphics card (4 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.4 slot/s vs 2 slot/s
  • 53.8% higher PSU requirement
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
  • 54.63 mm longer card length
    GIGABYTE GeForce RTX 4090 Gaming OC is longer than the average graphics card (340 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

    GIGABYTE GeForce RTX 4090 Gaming OC is longer than the average graphics card (340 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.340 mm vs 285.37 mm
  • 23.2 mm higher card profile
    GIGABYTE GeForce RTX 4090 Gaming OC is taller than the average graphics card (150.2 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

    GIGABYTE GeForce RTX 4090 Gaming OC is taller than the average graphics card (150.2 mm vs 127 mm). The average graphics card has a height of 127 mm.150.2 mm vs 127 mm
  • 2.73x higher board power limit
    GIGABYTE GeForce RTX 4090 Gaming 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

    GIGABYTE GeForce RTX 4090 Gaming 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
  • 3.66x more expensive
    GIGABYTE GeForce RTX 4090 Gaming OC is more expensive than the average graphics card (£1,940 vs £530).
    GIGABYTE GeForce RTX 4090 Gaming OC is more expensive than the average graphics card (£1,940 vs £530).£1,940 vs £530
  • 90.9% higher idle power draw
    GIGABYTE GeForce RTX 4090 Gaming OC has a higher idle power draw than the average graphics card (21 W vs 11 W). The average graphics card has an idle power draw of 11 W.
    What it is: Power consumption of the graphics card while idle.
    When it matters: When the PC stays on for long hours and background power draw adds up.

    Importance: LOW

    GIGABYTE GeForce RTX 4090 Gaming OC has a higher idle power draw than the average graphics card (21 W vs 11 W). The average graphics card has an idle power draw of 11 W.21 W vs 11 W
Total
Overall
Platform & Features
Power & Cooling
Design

Graphic comparison of GIGABYTE GeForce RTX 4090 Gaming OC and

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Third-party reviews

United Kingdom
amazon
4.4
264 Reviews
amazon
4.5
211 Reviews
United States
Amazon_logo.png
4.4
284 Reviews
Amazon_logo.png
4.5
148 Reviews

(Reviews last updated: June 2026)

What customers like about GIGABYTE GeForce RTX 4090 Gaming OC?

  • Industry-leading 4K and ray tracing performance
  • Excellent cooling with low VRAM and core temperatures
  • Reported low incidence of coil whine compared to other models
  • 4-year extended warranty available upon registration
  • Sturdy build quality with an included anti-sag bracket
  • Dual BIOS switch for 'OC' or 'Silent' modes
  • Higher than advertised actual boost clock speeds

What customers dislike about GIGABYTE GeForce RTX 4090 Gaming OC?

  • Massive physical size (requires 4 slots and a large case)
  • High retail price and premium over the Founders Edition
  • Requires a high-wattage power supply (1000W+ recommended)
  • Poor user experience with Gigabyte Control Center software
  • Heavy use of plastic on the fan shroud feels less premium
  • RGB lighting on fans is only visible when they are spinning
  • Distracting default strobe/rainbow RGB lighting effects

Expert reviews

T
tomshardware.com
09/11/2022
Gigabyte RTX 4090 Gaming OC Review: Taming the Beast - Tom's Hardware If you need any performance comparisons or specific thermal benchmarks between t...

Gigabyte RTX 4090 Gaming OC Overview The Gigabyte RTX 4090 Gaming OC is a traditional, air-cooled graphics card that delivers performance nearly identical to other models using Nvidia's flagship AD102 architecture. It features a minor 15 MHz factory overclock, pushing the rated boost clock to 2,535 MHz. In real-world gaming tests, the card consistently boosts up to 2,715–2,757 MHz....Read more

K
kitguru.net
26/10/2022
Gigabyte RTX 4090 Gaming OC Review - KitGuru

The KitGuru review of the Gigabyte RTX 4090 Gaming OC highlights it as a high-performing custom graphics card built on Nvidia’s 4nm Ada Lovelace architecture. Major pros include its massive air-cooling infrastructure, which features a vapour chamber cooler and a sturdy metal backplate. The thermal design yields excellent memory temperatures, remaining among the lowest recorded for...Read more

B
bhphotovideo.com
18/01/2024
Gigabyte RTX 4090 Gaming OC: Sweaty Ready | B&H eXplora

The B&H eXplora review highlights the Gigabyte GeForce RTX 4090 Gaming OC as a massive, Ada Lovelace-based card delivering immense 4K performance, reaching 141 fps in Borderlands 3. It offers significant generational gains, with 3DMark scores far outpacing the RTX 3090, alongside efficient cooling via a large vapor chamber and 10 heat pipes. However, the card features an enormous...Read more

K
kitguru.net
26/10/2022
Gigabyte RTX 4090 Gaming OC Review - KitGuru

The Gigabyte RTX 4090 Gaming OC is a massive, near quad-slot graphics card that balances high-end thermal performance with a subtle, dark aesthetic. In terms of core specifications, it runs on TSMC's 4nm node and boasts 16,384 CUDA cores paired with 24GB of GDDR6X video memory. Out of the box, it delivers near-identical gaming and synthetic benchmark performance to Nvidia's Founders...Read more

T
techpowerup.com
12/10/2022
Gigabyte GeForce RTX 4090 Gaming OC Review - TechPowerUp

The TechPowerUp review highlights the Gigabyte GeForce RTX 4090 Gaming OC as a premium, 5 nm-based card delivering 42% higher 4K performance over the RTX 3090 Ti, along with exceptional cooling via a vapor chamber and 110 mm fans. Key pros include a robust 20-phase VRM, a dual BIOS, and native DLSS 3 support. Conversely, the card is physically massive at 34.5 cm and 4 slots,...Read more

H
hwcooling.net
08/05/2023
One of the fastest, Gigabyte RTX 4090 Gaming OC 24G - HWcooling

The Gigabyte RTX 4090 Gaming OC 24G delivers peerless gaming performance driven by its massive AD102 Ada Lovelace GPU, 128 SM blocks, and a record-breaking memory bandwidth exceeding 1 TB/s. A major highlight of this specific model is its Windforce cooling solution, featuring larger 110 mm fans with micro-turbulence channels and a robust vapor chamber base that efficiently manages...Read more

I
ign.com
24/10/2022
Gigabyte GeForce RTX 4090 Gaming OC 24G Review - IGN

The Gigabyte GeForce RTX 4090 Gaming OC 24G is a high-end graphics card built on the Ada Lovelace architecture that delivers stellar 4K gaming performance and generational improvements like DLSS 3 frame generation, 16,384 CUDA cores, and 24GB of GDDR6X VRAM. Its greatest strength lies in its Windforce cooling system, which uses three 110mm fans, a vapor chamber, and 10 copper heat...Read more

E
elchapuzasinformatico.com
13/10/2022
GIGABYTE GeForce RTX 4090 GAMING OC, review y análisis completo

The Gigabyte GeForce RTX 4090 Gaming OC dominates 4K gaming, offering substantial performance gains over previous generations, along with excellent thermal management, low coil whine, and an included anti-sag bracket. However, the card is physically massive, occupying nearly four slots, and requires a 1000W power supply, with its high price and plastic shroud drawing minor...Read more

(Translated)Show original
F
fanaticosdelhardware.com
16/01/2023
Analizamos la monstruosa Gigabyte RTX 4090 Gaming OC

The Fanáticos del Hardware review establishes the Gigabyte RTX 4090 Gaming OC 24GB as a premier graphics card, delivering exceptional 4K and virtual reality gaming performance. Tested on a system featuring an Intel i7-13700KF processor and an Asus Z690-E motherboard, this GPU demonstrates a substantial performance leap over its smaller sibling, the RTX 4080. The reviewer notes that...Read more

(Translated)Show original
T
tweakers.net
19/10/2022
GeForce RTX 4090Go to product viewer dialog for this item. - Vijf peperdure grafische kanonnen - Tweakers(hardware.info) | 19 October 2022 | GeForce R...

The Tweakers review of five premium NVIDIA GeForce RTX 4090 custom cards highlights immense performance, boasting an average 47% higher 4K framerates than the RTX 3090 Ti and up to 65% faster speeds than the RX 6950 XT. The cards, including models from ASUS, MSI, Inno3D, and Gigabyte, feature advanced, often 3-to-4-slot, cooling systems that keep temperatures in check and offer very...Read more

(Translated)Show original

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