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XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black Review | 118 Data compared

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  • Avg. price: ~£950
  • VRAM: 16 GB
  • Memory bus width: 256 bit
  • Thermal Design Power (TDP): 300 W

XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black review. Compare 118 technical specifications and user reviews to see how it ranks among graphics cards and if it is worth buying.

7.5

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%

7.5

Technical Score

10.0%

?

User score

Very good
7.5

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%

8.7

Performance

24.0%

6.4

Memory

12.0%

5.3

Power & Cooling

11.0%

8.1

Platform & Features

5.0%

5.2

Design

4.0%

7.5

Connectivity & Media

Very good
?

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

  • 6.4
    Gaming

    Score components:

    45.0%

    5.2

    Floating-point performance

    25.0%

    5.2

    VRAM

    20.0%

    9.4

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 6.4
    Video editing

    Score components:

    35.0%

    7.0

    AV1 encode

    30.0%

    5.2

    VRAM

    20.0%

    5.2

    Floating-point performance

    15.0%

    8.8

    PCI Express (PCIe) version

  • 6.0
    1080p

    Score components:

    55.0%

    5.2

    Floating-point performance

    25.0%

    5.2

    VRAM

    10.0%

    9.4

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 6.0
    1440p

    Score components:

    50.0%

    5.2

    Floating-point performance

    30.0%

    5.2

    VRAM

    15.0%

    9.4

    Ray tracing cores / units

    5.0%

    8.8

    PCI Express (PCIe) version

  • 6.2
    4K

    Score components:

    40.0%

    5.2

    Floating-point performance

    35.0%

    5.2

    VRAM

    20.0%

    9.4

    Ray tracing cores / units

    5.0%

    8.8

    PCI Express (PCIe) version

  • No image
No image

Best prices in UK

    N/A~ £950

Best rankings

?

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

Verdict

The XFX Speedster MERC 319 Radeon RX 6900 XT Limited Black is a high-end graphics card built on the 7nm RDNA 2 architecture, featuring 5,120 stream processors and 80 Ray Accelerators. This flagship model is equipped with 16GB of GDDR6 VRAM on a 256-bit interface and delivers a factory-overclocked boost speed of up to 2495 MHz. Its robust 14+2 phase power design and 'Ghost Thermal' cooling system, which includes triple 13-blade double ball-bearing fans and a solid aluminum backplate, allow for exceptional 4K gaming performance and high overclocking headroom. Key advantages include its quiet operation, premium build quality with a dual BIOS switch, and superior cooling efficiency compared to reference designs. However, its massive 340mm length and triple-slot profile may cause clearance issues in smaller cases, and it lacks the advanced ray-tracing and AI-upscaling features found in newer generations.

Technical Specifications of XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black

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

7.5
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a technical score of 7.46 points, which is higher than that of 70.5% 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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%

7.5

Overall score

40.0%

5.5

Price

6.9
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a quality-to-price ratio of 6.9 points, which is higher than 54.4% 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

26,671 points
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black scores 26671 points in PassMark G3D, which is higher than 79.7% of graphics cards.
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

25.55 TFLOPS
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black delivers 25.55 TFLOPS floating-point performance, which is higher than that of 53.4% 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

?
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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

?
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
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

1.4
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black supports DisplayPort 1.4, which is older than on 77.3% of graphics cards and equal to 16.2% of graphics cards.
DisplayPort link rates
What it is: Supported data link rates for DisplayPort connections
When it matters: When you are pushing high resolution and refresh rate over DisplayPort.

Importance: LOW

8.1 Gbps
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black supports DisplayPort link rates up to 8.1 Gbps, which is slower than on 50.4% of graphics cards and equal to 40.5% of graphics cards.
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Thermal Design Power (TDP)
What it is: Typical power consumption under full load (TDP)
When it matters: When you need a realistic idea of power draw before choosing a PSU or case.

Importance: MEDIUM

300 W
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

345 W
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black draws 345 W under peak load, which is higher than 85.2% of graphics cards and equal to 0.1% of graphics cards.
Recommended PSU wattage
What it is: Recommended wattage of the system power supply
When it matters: When you are checking whether your current power supply is enough.

Importance: LOW

850 W
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black recommends a 850 W PSU, which is higher than that of 81.6% of graphics cards and equal to that of 13.4% of graphics cards.
Board power limit
What it is: Maximum configurable power limit for the GPU board
When it matters: When you care about how far the card can be pushed through tuning or factory power settings.

Importance: LOW

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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

340 mm
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

139 mm
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black is 139 mm tall, which is taller than 75.1% of graphics cards and equal in height to 1.1% of graphics cards.
Slot width
What it is: Number of PCIe slots occupied by the card
When it matters: When you need room for another PCIe card or better airflow under the GPU.

Importance: LOW

3 slot/s
XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black occupies 3 slot/s, which is wider than 69.8% of graphics cards and equal in width to 16.6% 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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XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black vs the average graphics card

  • 40 more compute units
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more ROPs than the average graphics card (128 vs 64). The average graphics card has 64 ROPs.128 vs 64
  • 32 more ray tracing cores
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more ray tracing cores than the average graphics card (80 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more ray tracing cores than the average graphics card (80 vs 48). The average graphics card has 48 ray tracing cores.80 vs 48
  • 2.12x higher texture rate
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher texture rate than the average graphics card (798.4 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher texture rate than the average graphics card (798.4 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.798.4 GTexel/s vs 376.8 GTexel/s
  • 136 more TMUs
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more TMUs than the average graphics card (320 vs 184). The average graphics card has 184 TMUs.320 vs 184
  • 93.3% higher pixel rate
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher pixel rate than the average graphics card (319.4 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher pixel rate than the average graphics card (319.4 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.319.4 GPixel/s vs 165.2 GPixel/s
  • 4 GB more VRAM
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
  • Supports ECC memory
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black supports ECC memory, the average graphics card does not.
    What it is: Supports error-correcting code memory for higher reliability
    When it matters: When stability and error correction matter more than pure gaming value.

    Importance: LOW

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black supports ECC memory, the average graphics card does not.
  • 40 more compute units
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more compute units than the average graphics card (80 vs 40). The average graphics card has 40 compute units.
  • 64 more ROPs
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more ROPs than the average graphics card (128 vs 64). The average graphics card has 64 ROPs.
  • 32 more ray tracing cores
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more ray tracing cores than the average graphics card (80 vs 48). The average graphics card has 48 ray tracing cores.
  • 2.12x higher texture rate
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher texture rate than the average graphics card (798.4 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
  • 136 more TMUs
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more TMUs than the average graphics card (320 vs 184). The average graphics card has 184 TMUs.
  • 93.3% higher pixel rate
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher pixel rate than the average graphics card (319.4 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.
  • 2.34x higher PassMark score
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher PassMark score than the average graphics card (26,671 points vs 11,411 points). The average graphics card has a PassMark score of 11,411 points.
  • 12% higher base clock speed
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher base GPU clock than the average graphics card (2,150 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.
  • Better FP64 ratio
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a better FP64 ratio than the average graphics card (1:16 vs 1:64).
  • 3.26x higher FP64 performance
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher FP64 performance than the average graphics card (1.5 TFLOPS vs 0.4651 TFLOPS). The average graphics card has FP64 performance of 0.4651 TFLOPS.
  • 4 GB more VRAM
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has more VRAM than the average graphics card (16 GB vs 12 GB). The average graphics card has 12 GB VRAM.
  • Supports ECC memory
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black supports ECC memory, the average graphics card does not.
  • 2x more Infinity Cache
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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.
  • Includes dual BIOS
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black includes dual BIOS, the average graphics card does not.

Total
Performance
Memory
Power & Cooling
  • 87.5% smaller L2 cache
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black does not support DLSS, the average graphics card does.
  • 40% larger process node
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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.
  • 3 older
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black was released earlier than the average graphics card (2,020 vs 2,023).
  • Older OpenCL version
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black supports an older OpenCL version than the average graphics card (2.1 vs 3.0).
  • 70.9% larger GPU die
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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.
  • No AV1 encoding
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black does not support AV1 encoding, the average graphics card does.
  • 1 fewer DisplayPort outputs
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has fewer DisplayPort outputs than the average graphics card (2 vs 3). The average graphics card has 3 DisplayPort outputs.
  • Older DisplayPort version
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black supports an older DisplayPort version than the average graphics card (1.4 vs 1.4a).
  • 39.5% higher TDP
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher TDP than the average graphics card (300 W vs 215 W). The average graphics card has a TDP of 215 W.
  • 30.8% higher PSU requirement
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher PSU requirement than the average graphics card (850 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
  • 17 °C lower thermal ceiling
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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.
  • 56.8% higher peak power draw
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher peak power draw than the average graphics card (345 W vs 220 W). The average graphics card has a peak power draw of 220 W.
  • 1 slot/s wider design
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black occupies more slots than the average graphics card (3 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
  • 54.63 mm longer card length
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black is longer than the average graphics card (340 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.
  • No RGB lighting
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black does not include RGB lighting, the average graphics card does.
  • 12 mm higher card profile
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black is taller than the average graphics card (139 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • No DLSS support
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black does not support DLSS, the average graphics card does.
  • 1 slot/s wider design
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black occupies more slots than the average graphics card (3 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black occupies more slots than the average graphics card (3 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.3 slot/s vs 2 slot/s
  • 40% larger process node
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
  • 39.5% higher TDP
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
  • 30.8% higher PSU requirement
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher PSU requirement than the average graphics card (850 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
    What it is: Recommended wattage of the system power supply
    When it matters: When you are checking whether your current power supply is enough.

    Importance: LOW

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has a higher PSU requirement than the average graphics card (850 W vs 650 W). The average graphics card has a PSU requirement of 650 W.850 W vs 650 W
  • No AV1 encoding
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black does not support AV1 encoding, the average graphics card does.
    What it is: Supports hardware encoding of AV1 video codec
    When it matters: When you stream or export video and want efficient AV1 encoding on the GPU.

    Importance: LOW

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black does not support AV1 encoding, the average graphics card does.No vs yes
  • 54.63 mm longer card length
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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
  • 1 fewer DisplayPort outputs
    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black 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

    XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black has fewer DisplayPort outputs than the average graphics card (2 vs 3). The average graphics card has 3 DisplayPort outputs.2 vs 3
Total
Overall
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Platform & Features
Connectivity & Media
Power & Cooling
Design

Graphic comparison of XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black and

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Third-party reviews

What customers like about XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black?

  • Exceptional 1440p and 4K gaming performance, often rivaling or beating the RTX 3090 in rasterisation.
  • Superior cooling design that keeps the card quiet and temperatures low (often under 70°C) even under heavy load.
  • High build quality featuring an all-metal shroud and backplate for a premium, sturdy feel.
  • Efficient power delivery with a 14+2 phase PCB design and inclusion of a solid sag bracket.
  • Clean, elegant aesthetic with minimal RGB, appealing to users who prefer a mature 'blacked-out' look.
  • Dual BIOS switch provides a safety net and allows users to toggle between performance and quiet modes.

What customers dislike about XFX Speedster Merc 319 Radeon RX 6900 XT Limited Black?

  • Extremely large footprint (340mm length) that may not fit in many standard or compact PC cases.
  • Ray tracing performance is significantly weaker compared to competing NVIDIA RTX 30-series cards.
  • Historically high MSRP and price premium over reference models, though value has improved over time.
  • Limited manual overclocking headroom as the card is already pushed near its limits from the factory.
  • The XTXH chip version has a lower thermal throttling threshold (95°C junction) compared to standard XTX chips.
  • Occasional reports of coil whine, though often manageable through undervolting.

Expert reviews

G
gamesmea.com
01/04/2021
XFX Radeon RX 6900 XT Merc 319 Black Graphics Card (Note: Although multiple outlets covered its initial announcement, standalone written english revie...

The Games Middle East and Africa review awards the XFX Radeon RX 6900 XT Merc 319 Black an excellent 9.4 out of 10 "Amazing" rating, highlighting it as a top-tier flagship custom card designed to compete with NVIDIA’s best. On the positive side (pros), the reviewer praises its premium, clean industrial design, a robust 14 phase power delivery system that improves over the reference...Read more

R
reviewcentralme.com
29/04/2021
Review: XFX Radeon RX 6900 XT Merc 319 Black Graphics Card

The XFX Radeon RX 6900 XT Merc 319 Black is a high-end, triple-slot graphics card built on AMD's 7nm RDNA 2 "Big Navi" architecture, featuring 80 compute units, 80 Ray Accelerators, and 16GB of GDDR6 memory bolstered by a 128MB Infinity Cache. XFX enhances the reference design with an industrial, blacked-out aesthetic, an advanced 14 phase power distribution system for improved...Read more

C
computerbase.de
10/12/2021
AMD RX 6900 XT mit XTXH-GPU gegen Nvidia RTX 3090 OC

The review evaluates the high-end battle between the XFX Radeon RX 6900 XT Merc 319 Limited Black Gaming (featuring the binned XTXH GPU) and the Asus GeForce RTX 3090 Strix OC tested on an AMD Ryzen 9 5950X system. In factory performance-BIOS configurations, the XFX card delivers substantial clock speed advantages, averaging 2,515 MHz in Ultra HD compared to the reference card's...Read more

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