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COLORFUL iGame GeForce RTX 4090 Neptune OC Review | 118 Data compared

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  • Avg. price in UK: ~£2,030
  • Avg. price in US: ~$1,800
  • VRAM: 24 GB
  • Memory bus width: 384 bit
  • Thermal Design Power (TDP): 630 W

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

8.6

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%

8.6

Technical Score

10.0%

?

User score

Excellent
8.6

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%

9.3

Performance

24.0%

8.5

Memory

12.0%

6.2

Power & Cooling

11.0%

9.4

Platform & Features

5.0%

6.9

Design

4.0%

9.4

Connectivity & Media

Excellent
?

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%

?

User reviews

30.0%

?

Popularity

  • 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

  • No image
No image

Best prices in UK

    N/A~ £2,030

Best rankings

?

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

Verdict

The Colorful iGame GeForce RTX 4090 Neptune OC is a flagship enthusiast-grade graphics card featuring the AD102 GPU with 16,384 CUDA cores and 24GB of GDDR6X memory on a 384-bit bus. It is distinguished by its factory overclocked boost clock of 2640 MHz and an industry-leading maximum TGP of 630W, managed by a robust 24+3 phase power delivery system. Key advantages include a slim 2-slot design enabled by an integrated 360mm AIO liquid cooling solution with three 120mm PWM fans, a full-cover copper waterblock, and a physical One-Key Overclock button for instant performance boosts. However, potential drawbacks include extreme power requirements necessitating a 1000W+ PSU, the significant case space needed for the massive 360mm radiator, and higher retail pricing compared to air-cooled models.

Technical Specifications of COLORFUL iGame GeForce RTX 4090 Neptune 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%

?

Performance

24.0%

?

Memory

12.0%

?

Power & Cooling

11.0%

?

Platform & Features

5.0%

?

Design

4.0%

?

Connectivity & Media

8.6
COLORFUL iGame GeForce RTX 4090 Neptune OC has a technical score of 8.64 points, which is higher than that of 93.9% 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%

0.0

User reviews

30.0%

1.0

Popularity

?
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.
1.0
COLORFUL iGame GeForce RTX 4090 Neptune OC has a popularity of 1 points, which is lower than 55.9% 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%

8.6

Overall score

40.0%

1.0

Price

6.4
COLORFUL iGame GeForce RTX 4090 Neptune OC has a quality-to-price ratio of 6.4 points, which is lower than 67% 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

?
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

?
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

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

Importance: LOW

?
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

86.51 TFLOPS
COLORFUL iGame GeForce RTX 4090 Neptune OC delivers 86.51 TFLOPS floating-point performance, which is higher than that of 96.9% 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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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

?
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

?
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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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
COLORFUL iGame GeForce RTX 4090 Neptune 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

?
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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

630 W
COLORFUL iGame GeForce RTX 4090 Neptune OC has a TDP of 630 W, which is higher than that of 100% 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

630 W
COLORFUL iGame GeForce RTX 4090 Neptune OC draws 630 W under peak load, which is higher than 100% 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
COLORFUL iGame GeForce RTX 4090 Neptune 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

630 W
COLORFUL iGame GeForce RTX 4090 Neptune OC has a board power limit of 630 W, which is higher than that of 99.9% 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

?
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

?
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

151.8 mm
COLORFUL iGame GeForce RTX 4090 Neptune OC is 151.8 mm tall, which is taller than 96.6% 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

2 slot/s
COLORFUL iGame GeForce RTX 4090 Neptune OC occupies 2 slot/s, which is slimmer than 49.2% of graphics cards and equal in width to 47.3% 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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COLORFUL iGame GeForce RTX 4090 Neptune OC vs the average graphics card

  • 88 more compute units
    COLORFUL iGame GeForce RTX 4090 Neptune 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

    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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

    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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

    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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

    COLORFUL iGame GeForce RTX 4090 Neptune 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
  • 3.59x higher texture rate
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher texture rate than the average graphics card (1,352 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
    What it is: Number of textured pixels the GPU can process per second
    When it matters: When fast texture handling matters in high-refresh gaming workloads.

    Importance: HIGH

    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher texture rate than the average graphics card (1,352 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.1352 GTexel/s vs 376.8 GTexel/s
  • 112 more ROPs
    COLORFUL iGame GeForce RTX 4090 Neptune 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

    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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

    COLORFUL iGame GeForce RTX 4090 Neptune OC has more TMUs than the average graphics card (512 vs 184). The average graphics card has 184 TMUs.512 vs 184
  • 5.6% higher boost clock speed
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher boost GPU clock than the average graphics card (2,640 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
    What it is: Maximum boost frequency the GPU can reach under load
    When it matters: When you want a rough idea of peak advertised frequency, while knowing real sustained clocks still depend on cooling and power limits.

    Importance: HIGH

    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher boost GPU clock than the average graphics card (2,640 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.2640 MHz vs 2500 MHz
  • 88 more compute units
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune OC has more ray tracing cores than the average graphics card (128 vs 48). The average graphics card has 48 ray tracing cores.
  • 3.59x higher texture rate
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher texture rate than the average graphics card (1,352 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
  • 112 more ROPs
    COLORFUL iGame GeForce RTX 4090 Neptune OC has more ROPs than the average graphics card (176 vs 64). The average graphics card has 64 ROPs.
  • 328 more TMUs
    COLORFUL iGame GeForce RTX 4090 Neptune OC has more TMUs than the average graphics card (512 vs 184). The average graphics card has 184 TMUs.
  • 5.6% higher boost clock speed
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher boost GPU clock than the average graphics card (2,640 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
  • 2.81x higher pixel rate
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher pixel rate than the average graphics card (464.6 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.
  • 320 more AI cores
    COLORFUL iGame GeForce RTX 4090 Neptune OC has more AI cores than the average graphics card (512 vs 192). The average graphics card has 192 AI cores.
  • 16.4% higher base clock speed
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune OC has more FP32 units than the average graphics card (16,384 vs 4,352). The average graphics card has 4,352 FP32 units.
  • 3.74x higher compute throughput
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher compute throughput than the average graphics card (86.5 TFLOPS vs 23.105 TFLOPS). The average graphics card has compute throughput of 23.105 TFLOPS.
  • 2.93x higher FP16 performance
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher FP16 performance than the average graphics card (86.5 TFLOPS vs 29.5 TFLOPS). The average graphics card has FP16 performance of 29.5 TFLOPS.
  • 2.25x higher memory bandwidth
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune OC supports ECC memory, the average graphics card does not.
  • 2.25x larger L2 cache
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune 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
    COLORFUL iGame GeForce RTX 4090 Neptune OC supports a newer shader model than the average graphics card (6.9 vs 6.8).
  • Includes dual BIOS
    COLORFUL iGame GeForce RTX 4090 Neptune OC includes dual BIOS, the average graphics card does not.
  • 10 °C lower idle temperature
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a lower idle temperature than the average graphics card (28 °C vs 38 °C). The average graphics card has an idle temperature of 38 °C.

Total
Performance
Memory
Platform & Features
Power & Cooling
  • 24.3% slower VRAM clock
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a lower VRAM clock than the average graphics card (1,325 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
  • No XeSS support
    COLORFUL iGame GeForce RTX 4090 Neptune OC does not support XeSS, the average graphics card does.
  • 1 older
    COLORFUL iGame GeForce RTX 4090 Neptune OC was released earlier than the average graphics card (2,022 vs 2,023).
  • 2.93x higher TDP
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher TDP than the average graphics card (630 W vs 215 W). The average graphics card has a TDP of 215 W.
  • 53.8% higher PSU requirement
    COLORFUL iGame GeForce RTX 4090 Neptune 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.
  • 2.86x higher board power limit
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher board power limit than the average graphics card (630 W vs 220 W). The average graphics card has a board power limit of 220 W.
  • 4.27x higher idle power draw
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher idle power draw than the average graphics card (47 W vs 11 W). The average graphics card has an idle power draw of 11 W.
  • 2.86x higher peak power draw
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher peak power draw than the average graphics card (630 W vs 220 W). The average graphics card has a peak power draw of 220 W.
  • 24.8 mm higher card profile
    COLORFUL iGame GeForce RTX 4090 Neptune OC is taller than the average graphics card (151.8 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • 2.93x higher TDP
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher TDP than the average graphics card (630 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

    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher TDP than the average graphics card (630 W vs 215 W). The average graphics card has a TDP of 215 W.630 W vs 215 W
  • 53.8% higher PSU requirement
    COLORFUL iGame GeForce RTX 4090 Neptune 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

    COLORFUL iGame GeForce RTX 4090 Neptune 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
  • 24.8 mm higher card profile
    COLORFUL iGame GeForce RTX 4090 Neptune OC is taller than the average graphics card (151.8 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

    COLORFUL iGame GeForce RTX 4090 Neptune OC is taller than the average graphics card (151.8 mm vs 127 mm). The average graphics card has a height of 127 mm.151.8 mm vs 127 mm
  • 2.86x higher board power limit
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher board power limit than the average graphics card (630 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

    COLORFUL iGame GeForce RTX 4090 Neptune OC has a higher board power limit than the average graphics card (630 W vs 220 W). The average graphics card has a board power limit of 220 W.630 W vs 220 W
  • No XeSS support
    COLORFUL iGame GeForce RTX 4090 Neptune OC does not support XeSS, the average graphics card does.
    What it is: Supports Intel XeSS AI upscaling technology
    When it matters: When the games you play support Intel XeSS and you want another upscaling option.

    Importance: LOW

    COLORFUL iGame GeForce RTX 4090 Neptune OC does not support XeSS, the average graphics card does.
  • 3.83x more expensive
    COLORFUL iGame GeForce RTX 4090 Neptune OC is more expensive than the average graphics card (£2,030 vs £530).
    COLORFUL iGame GeForce RTX 4090 Neptune OC is more expensive than the average graphics card (£2,030 vs £530).£2,030 vs £530
  • 24.3% slower VRAM clock
    COLORFUL iGame GeForce RTX 4090 Neptune OC has a lower VRAM clock than the average graphics card (1,325 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

    COLORFUL iGame GeForce RTX 4090 Neptune OC has a lower VRAM clock than the average graphics card (1,325 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.1325 MHz vs 1750 MHz
  • 2.3x less popular
    COLORFUL iGame GeForce RTX 4090 Neptune OC is less popular than the average graphics card (1.00 vs 2.303).
    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.
    COLORFUL iGame GeForce RTX 4090 Neptune OC is less popular than the average graphics card (1.00 vs 2.303).1 vs 2.3
Total
Overall
Memory
Platform & Features
Power & Cooling
Design

Graphic comparison of COLORFUL iGame GeForce RTX 4090 Neptune OC and

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Third-party reviews

What customers like about COLORFUL iGame GeForce RTX 4090 Neptune OC?

  • Superior thermal management due to the integrated 360mm AIO liquid cooling system
  • Highest maximum power target (TGP) of 630W among all 4090 models, allowing for high power headroom
  • Sleek white aesthetic that is ideal for clean, light-colored PC builds
  • Relatively compact card size compared to air-cooled 4090s, easing GPU clearance concerns
  • Quiet operation under load compared to standard triple-fan air coolers

What customers dislike about COLORFUL iGame GeForce RTX 4090 Neptune OC?

  • Massive 360mm radiator requires significant case space and specific mounting support
  • Overclocking performance can be inconsistent due to 'silicon lottery,' with some units not showing significant gains over stock
  • Extremely high power consumption necessitates at least a 1000W power supply
  • Premium price point that sits significantly higher than the baseline MSRP for the RTX 4090
  • General availability can be limited in certain Western markets as Colorful is primarily a Chinese brand

Video reviews

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