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PowerColor Liquid Devil Radeon RX 6900 XT Ultimate Review | 118 Data compared

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  • Avg. price in UK: ~£1,540
  • Avg. price in US: ~$1,550
  • VRAM: 16 GB
  • Memory bus width: 256 bit
  • Thermal Design Power (TDP): 300 W

PowerColor Liquid Devil Radeon RX 6900 XT Ultimate review. Compare 118 technical specifications and user reviews to see how it ranks among graphics cards and if it is worth buying.

6.8

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%

6.9

Technical Score

10.0%

5.2

User score

Good
6.9

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%

7.5

Performance

24.0%

6.0

Memory

12.0%

5.3

Power & Cooling

11.0%

8.6

Platform & Features

5.0%

6.3

Design

4.0%

7.6

Connectivity & Media

Good
5.2

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%

6.4

User reviews

30.0%

2.3

Popularity

User score:
United Kingdom
amazon
3.3
(9)
United States
Amazon_logo.png
3.2
(11)

(Reviews last updated: June 2026)

Good
  • 6.1
    Gaming

    Score components:

    45.0%

    5.2

    Floating-point performance

    25.0%

    5.2

    VRAM

    20.0%

    ?

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 6.7
    Video editing

    Score components:

    35.0%

    ?

    AV1 encode

    30.0%

    5.2

    VRAM

    20.0%

    5.2

    Floating-point performance

    15.0%

    8.8

    PCI Express (PCIe) version

  • 5.8
    1080p

    Score components:

    55.0%

    5.2

    Floating-point performance

    25.0%

    5.2

    VRAM

    10.0%

    ?

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 5.8
    1440p

    Score components:

    50.0%

    5.2

    Floating-point performance

    30.0%

    5.2

    VRAM

    15.0%

    ?

    Ray tracing cores / units

    5.0%

    8.8

    PCI Express (PCIe) version

  • 5.9
    4K

    Score components:

    40.0%

    5.2

    Floating-point performance

    35.0%

    5.2

    VRAM

    20.0%

    ?

    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 PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is an enthusiast-grade graphics card featuring a specially binned Navi 21 XTXH GPU, 5,120 stream processors, and 16GB of GDDR6 memory on a 256-bit bus. Designed for custom water-cooling loops, it comes pre-installed with a high-performance EK full-cover water block and a powerful 14+2 phase VRM system requiring three 8-pin PCIe connectors to handle its 332W power delivery. Its main pros include elite-tier overclocking potential with boost clocks up to 2,525 MHz, near-silent operation at low temperatures, and high-end aesthetic customization through an included dye pack. Main cons include its requirement for a complex custom liquid cooling loop, a massive physical footprint that may not fit standard cases, and a high premium price tag compared to air-cooled models.

Technical Specifications of PowerColor Liquid Devil Radeon RX 6900 XT Ultimate

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%

7.5

Performance

24.0%

6.0

Memory

12.0%

5.3

Power & Cooling

11.0%

8.6

Platform & Features

5.0%

6.3

Design

4.0%

7.6

Connectivity & Media

6.9
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a technical score of 6.94 points, which is higher than that of 60.8% 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%

6.4

User reviews

30.0%

2.3

Popularity

User score:
United Kingdom
amazon
3.3
(9)
United States
Amazon_logo.png
3.2
(11)

(Reviews last updated: June 2026)

5.2
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a user score of 5.17 points, which is lower than that of 99.5% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the graphics card.
When it matters: When you prefer a graphics card that has already been chosen and reviewed by many other users.
2.3
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a popularity of 2.3 points, which is higher than 49.7% 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%

6.8

Overall score

40.0%

2.4

Price

5.4
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a quality-to-price ratio of 5.4 points, which is lower than 92.1% of products in this category.
3DMark Time Spy benchmark score
What it is: Benchmark result from 3DMark Time Spy, a synthetic DirectX 12 test often used as a quick gaming-performance reference.
When it matters: When you need a fast rough performance sort before digging into game-specific reviews and frame-rate data.

Importance: LOW

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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

?
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

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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

25.86 TFLOPS
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate delivers 25.86 TFLOPS floating-point performance, which is higher than that of 53.7% of graphics cards and equal to that of 0.1% of graphics cards.
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VRAM
What it is: Total video memory available on the graphics card
When it matters: When you play at high settings, use texture mods, or work with large creative projects.

Importance: HIGH

16 GB
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has 16 GB of VRAM, which is more than 61.4% of graphics cards and equal to 28.7% 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

GDDR6
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

GDDR6
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate uses GDDR6 memory, which is newer than on 16.6% of graphics cards and equal to 39.1% 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

256 bit
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate uses a 256 bit memory bus, which is wider than that of 49.5% of graphics cards and equal to that of 36.1% 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

512 GB/s
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate reaches 512 GB/s memory bandwidth, which is higher than that of 60.2% of graphics cards and equal to that of 1.8% 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
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate 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
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate uses x16 PCIe lanes, which is more than 31.5% of graphics cards and equal to 68.6% of graphics cards.
DirectX version
What it is: Highest supported DirectX API version
When it matters: When you play newer Windows games that depend on the latest graphics features.

Importance: LOW

12 Ultimate
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate 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
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate 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
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate 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
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate 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
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate 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

2
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate offers 2 DisplayPort outputs, which is fewer than 79.2% of graphics cards and equal to 10.2% 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

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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

300 W
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a TDP of 300 W, which is higher than that of 71.6% of graphics cards and equal to that of 6.3% 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

332 W
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate draws 332 W under peak load, which is higher than 84% 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

900 W
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate recommends a 900 W PSU, which is higher than that of 95% of graphics cards and equal to that of 0.4% 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

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PCIe power spec
What it is: PCIe power delivery specification followed
When it matters: When you are checking whether the slot and external cables match the card's intended power-delivery standard.

Importance: LOW

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

Importance: LOW

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

Importance: LOW

266 mm
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is 266 mm long, which is shorter than 63.5% of graphics cards and equal in length to 0.1% of graphics cards.
Height
What it is: Physical height of the GPU card
When it matters: When side panels, brackets, or tight case layouts reduce vertical clearance.

Importance: LOW

162 mm
PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is 162 mm tall, which is taller than 99.5% 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

?
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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PowerColor Liquid Devil Radeon RX 6900 XT Ultimate vs the average graphics card

  • 40 more compute units
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more compute units than the average graphics card (80 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more compute units than the average graphics card (80 vs 40). The average graphics card has 40 compute units.80 vs 40
  • 64 more ROPs
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more ROPs than the average graphics card (128 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more ROPs than the average graphics card (128 vs 64). The average graphics card has 64 ROPs.128 vs 64
  • 2.11x higher texture rate
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher texture rate than the average graphics card (793.6 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher texture rate than the average graphics card (793.6 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.793.6 GTexel/s vs 376.8 GTexel/s
  • 136 more TMUs
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more TMUs than the average graphics card (320 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more TMUs than the average graphics card (320 vs 184). The average graphics card has 184 TMUs.320 vs 184
  • 92.1% higher pixel rate
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher pixel rate than the average graphics card (317.4 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher pixel rate than the average graphics card (317.4 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.317.4 GPixel/s vs 165.2 GPixel/s
  • 4 GB more VRAM
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more VRAM than the average graphics card (16 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more VRAM than the average graphics card (16 GB vs 12 GB). The average graphics card has 12 GB VRAM.16 GB vs 12 GB
  • Includes dual BIOS
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate includes dual BIOS, the average graphics card does not.
    What it is: Includes dual BIOS for redundancy or overclocking profiles
    When it matters: When you want a safer recovery path after tweaking fan curves or overclock settings, or you need separate quiet and performance profiles.

    Importance: LOW

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate includes dual BIOS, the average graphics card does not.
  • 2x more Infinity Cache
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more Infinity Cache than the average graphics card (128 MB vs 64 MB). The average graphics card has 64 MB Infinity Cache.
    What it is: Size of the L3 or Infinity Cache memory
    When it matters: When you want to know whether extra on-chip cache may help the card avoid VRAM bottlenecks in modern high-resolution games.

    Importance: LOW

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more Infinity Cache than the average graphics card (128 MB vs 64 MB). The average graphics card has 64 MB Infinity Cache.128 MB vs 64 MB
  • 40 more compute units
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more compute units than the average graphics card (80 vs 40). The average graphics card has 40 compute units.
  • 64 more ROPs
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more ROPs than the average graphics card (128 vs 64). The average graphics card has 64 ROPs.
  • 2.11x higher texture rate
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher texture rate than the average graphics card (793.6 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
  • 136 more TMUs
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more TMUs than the average graphics card (320 vs 184). The average graphics card has 184 TMUs.
  • 92.1% higher pixel rate
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher pixel rate than the average graphics card (317.4 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.
  • 3.41x higher FP64 performance
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher FP64 performance than the average graphics card (1.6 TFLOPS vs 0.4651 TFLOPS). The average graphics card has FP64 performance of 0.4651 TFLOPS.
  • Better FP64 ratio
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a better FP64 ratio than the average graphics card (1:16 vs 1:64).
  • 4 GB more VRAM
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more VRAM than the average graphics card (16 GB vs 12 GB). The average graphics card has 12 GB VRAM.
  • 2x more Infinity Cache
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has more Infinity Cache than the average graphics card (128 MB vs 64 MB). The average graphics card has 64 MB Infinity Cache.
  • 14.3% higher memory bandwidth
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher memory bandwidth than the average graphics card (512 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
  • 14.3% faster VRAM clock
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher VRAM clock than the average graphics card (2,000 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
  • Supports multi-GPU linking
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate supports multi-GPU linking, the average graphics card does not.
  • Includes dual BIOS
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate includes dual BIOS, the average graphics card does not.
  • 19.37 mm shorter card length
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is shorter than the average graphics card (266 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.

Total
Performance
Memory
Platform & Features
Power & Cooling
Design
  • 0.8% lower boost clock speed
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a lower boost GPU clock than the average graphics card (2,480 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
  • 4.9% lower base clock speed
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a lower base GPU clock than the average graphics card (1,825 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.
  • 87.5% smaller L2 cache
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has fewer L2 cache than the average graphics card (4 MB vs 32 MB). The average graphics card has 32 MB L2 cache.
  • 15.8% slower memory speed
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a lower effective memory speed than the average graphics card (16,000 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.
  • No DLSS support
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate does not support DLSS, the average graphics card does.
  • 40% larger process node
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher process node than the average graphics card (7 nm vs 5 nm). The average graphics card uses a process node of 5 nm.
  • 2 older
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate was released earlier than the average graphics card (2,021 vs 2,023).
  • Older OpenCL version
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate supports an older OpenCL version than the average graphics card (2.1 vs 3.0).
  • 70.9% larger GPU die
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher GPU die size than the average graphics card (520 mm² vs 304.25 mm²). The average graphics card has a GPU die size of 304.25 mm².
  • 1 fewer DisplayPort outputs
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has fewer DisplayPort outputs than the average graphics card (2 vs 3). The average graphics card has 3 DisplayPort outputs.
  • 38.5% higher PSU requirement
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher PSU requirement than the average graphics card (900 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
  • 39.5% higher TDP
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher TDP than the average graphics card (300 W vs 215 W). The average graphics card has a TDP of 215 W.
  • 17 °C lower thermal ceiling
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a lower thermal ceiling than the average graphics card (110 °C vs 93 °C). The average graphics card has a thermal ceiling of 93 °C.
  • 50.9% higher peak power draw
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher peak power draw than the average graphics card (332 W vs 220 W). The average graphics card has a peak power draw of 220 W.
  • 35 mm higher card profile
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is taller than the average graphics card (162 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • No DLSS support
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate does not support DLSS, the average graphics card does.
    What it is: Supports NVIDIA DLSS upscaling technology
    When it matters: When you play NVIDIA-supported games and want better frame rates at higher settings.

    Importance: LOW

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate does not support DLSS, the average graphics card does.
  • 40% larger process node
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher process node than the average graphics card (7 nm vs 5 nm). The average graphics card uses a process node of 5 nm.
    What it is: Size of the manufacturing process in nanometers
    When it matters: When process node differences may affect power, heat, and overall efficiency.

    Importance: MEDIUM

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher process node than the average graphics card (7 nm vs 5 nm). The average graphics card uses a process node of 5 nm.7 nm vs 5 nm
  • 38.5% higher PSU requirement
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher PSU requirement than the average graphics card (900 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher PSU requirement than the average graphics card (900 W vs 650 W). The average graphics card has a PSU requirement of 650 W.900 W vs 650 W
  • 39.5% higher TDP
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher TDP than the average graphics card (300 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a higher TDP than the average graphics card (300 W vs 215 W). The average graphics card has a TDP of 215 W.300 W vs 215 W
  • 35 mm higher card profile
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is taller than the average graphics card (162 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate is taller than the average graphics card (162 mm vs 127 mm). The average graphics card has a height of 127 mm.162 mm vs 127 mm
  • 1 fewer DisplayPort outputs
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has fewer DisplayPort outputs than the average graphics card (2 vs 3). The average graphics card has 3 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

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has fewer DisplayPort outputs than the average graphics card (2 vs 3). The average graphics card has 3 DisplayPort outputs.2 vs 3
  • 87.5% smaller L2 cache
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has fewer L2 cache than the average graphics card (4 MB vs 32 MB). The average graphics card has 32 MB L2 cache.
    What it is: Total size of the GPU’s L2 cache memory
    When it matters: When cache size can help the GPU feed data faster in demanding scenes.

    Importance: LOW

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has fewer L2 cache than the average graphics card (4 MB vs 32 MB). The average graphics card has 32 MB L2 cache.4 MB vs 32 MB
  • 15.8% slower memory speed
    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a lower effective memory speed than the average graphics card (16,000 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.
    What it is: Effective memory data rate combining clock and bus width
    When it matters: When you compare how quickly each card can push data through its memory subsystem.

    Importance: MEDIUM

    PowerColor Liquid Devil Radeon RX 6900 XT Ultimate has a lower effective memory speed than the average graphics card (16,000 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.16000 MHz vs 19000 MHz
Total
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Performance
Memory
Platform & Features
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Power & Cooling
Design

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Third-party reviews

United Kingdom
amazon
3.3
9 Reviews
United States
Amazon_logo.png
3.2
11 Reviews

(Reviews last updated: June 2026)

What customers like about PowerColor Liquid Devil Radeon RX 6900 XT Ultimate?

  • Exceptional performance as one of the fastest RX 6900 XT variants due to high-binned 'Ultimate' silicon (XTXH chip)
  • Superior thermal management provided by the pre-installed custom EK water block
  • High overclocking potential with unlocked BIOS limits and high-quality power delivery
  • Premium aesthetics including a nickel-plated copper base and customizable RGB lighting
  • Includes thoughtful extras such as EK Cryofuel coolant dyes and a BIOS switch for OC/Silent modes

What customers dislike about PowerColor Liquid Devil Radeon RX 6900 XT Ultimate?

  • Requires a custom water cooling loop for operation, adding significant cost and complexity for the user
  • High power requirements necessitating three 8-pin PCIe connectors and a robust power supply
  • Noticeable coil whine reported by some users, which can be irritating in quiet setups
  • Large physical dimensions (significant height) may cause clearance issues in smaller PC cases
  • Significant price premium over standard air-cooled 6900 XT models for marginal real-world gaming gains

Video reviews

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