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PowerColor Hellhound Radeon RX 7900 XT Review | 118 Data compared

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  • Avg. price in UK: ~£750
  • Avg. price in US: ~$670
  • VRAM: 20 GB
  • Memory bus width: 320 bit
  • Thermal Design Power (TDP): 300 W

PowerColor Hellhound Radeon RX 7900 XT 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%

7.6

Performance

24.0%

7.8

Memory

12.0%

6.4

Power & Cooling

11.0%

8.5

Platform & Features

5.0%

5.2

Design

4.0%

8.9

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

  • 9.0
    Gaming

    Score components:

    45.0%

    10

    Floating-point performance

    25.0%

    6.4

    VRAM

    20.0%

    10

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 8.7
    Video editing

    Score components:

    35.0%

    10

    AV1 encode

    30.0%

    6.4

    VRAM

    20.0%

    10

    Floating-point performance

    15.0%

    8.8

    PCI Express (PCIe) version

  • 9.0
    1080p

    Score components:

    55.0%

    10

    Floating-point performance

    25.0%

    6.4

    VRAM

    10.0%

    10

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 8.9
    1440p

    Score components:

    50.0%

    10

    Floating-point performance

    30.0%

    6.4

    VRAM

    15.0%

    10

    Ray tracing cores / units

    5.0%

    8.8

    PCI Express (PCIe) version

  • 8.7
    4K

    Score components:

    40.0%

    10

    Floating-point performance

    35.0%

    6.4

    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~ £750

Best rankings

?

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

Verdict

The PowerColor Hellhound Radeon RX 7900 XT is a high-performance graphics card built on AMD’s RDNA 3 architecture, featuring 5,376 stream processors and a substantial 20GB of GDDR6 memory on a 320-bit interface. It is specifically engineered with a robust triple-fan cooling system, a 14-layer high-TG PCB, and a 10+3+1 phase VRM with DrMOS for enhanced stability during intense 4K gaming. Key advantages include its excellent thermal management, exceptionally quiet operation even under load, and a convenient Dual BIOS switch that allows users to toggle between OC and Silent modes. However, the card is notably large at 338mm in length, which may limit case compatibility, and some users have reported issues with coil whine and limited RGB customisation, as the LED lighting is restricted to fixed blue or amethyst purple toggles.

Technical Specifications of PowerColor Hellhound Radeon RX 7900 XT

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
PowerColor Hellhound Radeon RX 7900 XT has a technical score of 7.5 points, which is higher than that of 71.2% 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
PowerColor Hellhound Radeon RX 7900 XT 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%

6.6

Price

7.2
PowerColor Hellhound Radeon RX 7900 XT has a quality-to-price ratio of 7.2 points, which is higher than 73.8% 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

53.76 TFLOPS
PowerColor Hellhound Radeon RX 7900 XT delivers 53.76 TFLOPS floating-point performance, which is higher than that of 86.8% 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

20 GB
PowerColor Hellhound Radeon RX 7900 XT has 20 GB of VRAM, which is more than 90.1% of graphics cards and equal to 1% 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 Hellhound Radeon RX 7900 XT 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

320 bit
PowerColor Hellhound Radeon RX 7900 XT uses a 320 bit memory bus, which is wider than that of 85.7% of graphics cards and equal to that of 2.1% 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

800 GB/s
PowerColor Hellhound Radeon RX 7900 XT reaches 800 GB/s memory bandwidth, which is higher than that of 81.2% of graphics cards and equal to that of 0.9% 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 Hellhound Radeon RX 7900 XT supports PCIe 4.0, which is newer than on 22.5% of graphics cards and equal to 52% of graphics cards.
PCIe lanes
What it is: Number of PCI Express lanes used for communication
When it matters: When limited lane width could bottleneck the card in some systems.

Importance: LOW

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DirectX version
What it is: Highest supported DirectX API version
When it matters: When you play newer Windows games that depend on the latest graphics features.

Importance: LOW

?
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 Hellhound Radeon RX 7900 XT 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 Hellhound Radeon RX 7900 XT 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 Hellhound Radeon RX 7900 XT 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

3
PowerColor Hellhound Radeon RX 7900 XT 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

2.1
PowerColor Hellhound Radeon RX 7900 XT supports DisplayPort 2.1, which is more advanced than on 67.8% of graphics cards and equal to 7.8% 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

13.5 Gbps
PowerColor Hellhound Radeon RX 7900 XT supports DisplayPort link rates up to 13.5 Gbps, which is faster than on 50.6% of graphics cards and equal to 2.3% 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
PowerColor Hellhound Radeon RX 7900 XT 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

300 W
PowerColor Hellhound Radeon RX 7900 XT draws 300 W under peak load, which is higher than 71.4% of graphics cards and equal to 4.8% 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

750 W
PowerColor Hellhound Radeon RX 7900 XT recommends a 750 W PSU, which is higher than that of 62.5% of graphics cards and equal to that of 17.5% 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

320 mm
PowerColor Hellhound Radeon RX 7900 XT is 320 mm long, which is longer than 73.3% of graphics cards and equal in length to 1.3% of graphics cards.
Height
What it is: Physical height of the GPU card
When it matters: When side panels, brackets, or tight case layouts reduce vertical clearance.

Importance: LOW

147 mm
PowerColor Hellhound Radeon RX 7900 XT is 147 mm tall, which is taller than 88.4% of graphics cards and equal in height to 0.5% 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

3 slot/s
PowerColor Hellhound Radeon RX 7900 XT 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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PowerColor Hellhound Radeon RX 7900 XT vs the average graphics card

  • 44 more compute units
    PowerColor Hellhound Radeon RX 7900 XT has more compute units than the average graphics card (84 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 Hellhound Radeon RX 7900 XT has more compute units than the average graphics card (84 vs 40). The average graphics card has 40 compute units.84 vs 40
  • 36 more ray tracing cores
    PowerColor Hellhound Radeon RX 7900 XT has more ray tracing cores than the average graphics card (84 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

    PowerColor Hellhound Radeon RX 7900 XT has more ray tracing cores than the average graphics card (84 vs 48). The average graphics card has 48 ray tracing cores.84 vs 48
  • 128 more ROPs
    PowerColor Hellhound Radeon RX 7900 XT has more ROPs than the average graphics card (192 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 Hellhound Radeon RX 7900 XT has more ROPs than the average graphics card (192 vs 64). The average graphics card has 64 ROPs.192 vs 64
  • 2.23x higher texture rate
    PowerColor Hellhound Radeon RX 7900 XT has a higher texture rate than the average graphics card (839.7 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 Hellhound Radeon RX 7900 XT has a higher texture rate than the average graphics card (839.7 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.839.7 GTexel/s vs 376.8 GTexel/s
  • 8 GB more VRAM
    PowerColor Hellhound Radeon RX 7900 XT has more VRAM than the average graphics card (20 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 Hellhound Radeon RX 7900 XT has more VRAM than the average graphics card (20 GB vs 12 GB). The average graphics card has 12 GB VRAM.20 GB vs 12 GB
  • 152 more TMUs
    PowerColor Hellhound Radeon RX 7900 XT has more TMUs than the average graphics card (336 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 Hellhound Radeon RX 7900 XT has more TMUs than the average graphics card (336 vs 184). The average graphics card has 184 TMUs.336 vs 184
  • 78.6% higher memory bandwidth
    PowerColor Hellhound Radeon RX 7900 XT has a higher memory bandwidth than the average graphics card (800 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

    PowerColor Hellhound Radeon RX 7900 XT has a higher memory bandwidth than the average graphics card (800 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.800 GB/s vs 448 GB/s
  • 42.9% faster VRAM clock
    PowerColor Hellhound Radeon RX 7900 XT has a higher VRAM clock than the average graphics card (2,500 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

    PowerColor Hellhound Radeon RX 7900 XT has a higher VRAM clock than the average graphics card (2,500 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.2500 MHz vs 1750 MHz
  • 44 more compute units
    PowerColor Hellhound Radeon RX 7900 XT has more compute units than the average graphics card (84 vs 40). The average graphics card has 40 compute units.
  • 36 more ray tracing cores
    PowerColor Hellhound Radeon RX 7900 XT has more ray tracing cores than the average graphics card (84 vs 48). The average graphics card has 48 ray tracing cores.
  • 128 more ROPs
    PowerColor Hellhound Radeon RX 7900 XT has more ROPs than the average graphics card (192 vs 64). The average graphics card has 64 ROPs.
  • 2.23x higher texture rate
    PowerColor Hellhound Radeon RX 7900 XT has a higher texture rate than the average graphics card (839.7 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
  • 152 more TMUs
    PowerColor Hellhound Radeon RX 7900 XT has more TMUs than the average graphics card (336 vs 184). The average graphics card has 184 TMUs.
  • 3.64x higher FP16 performance
    PowerColor Hellhound Radeon RX 7900 XT has a higher FP16 performance than the average graphics card (107.5 TFLOPS vs 29.5 TFLOPS). The average graphics card has FP16 performance of 29.5 TFLOPS.
  • 2.33x higher compute throughput
    PowerColor Hellhound Radeon RX 7900 XT has a higher compute throughput than the average graphics card (53.8 TFLOPS vs 23.105 TFLOPS). The average graphics card has compute throughput of 23.105 TFLOPS.
  • 8 GB more VRAM
    PowerColor Hellhound Radeon RX 7900 XT has more VRAM than the average graphics card (20 GB vs 12 GB). The average graphics card has 12 GB VRAM.
  • 78.6% higher memory bandwidth
    PowerColor Hellhound Radeon RX 7900 XT has a higher memory bandwidth than the average graphics card (800 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
  • 42.9% faster VRAM clock
    PowerColor Hellhound Radeon RX 7900 XT has a higher VRAM clock than the average graphics card (2,500 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
  • 64 bit wider memory bus
    PowerColor Hellhound Radeon RX 7900 XT has a wider memory bus than the average graphics card (320 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.
  • Supports ECC memory
    PowerColor Hellhound Radeon RX 7900 XT supports ECC memory, the average graphics card does not.
  • 25% more Infinity Cache
    PowerColor Hellhound Radeon RX 7900 XT has more Infinity Cache than the average graphics card (80 MB vs 64 MB). The average graphics card has 64 MB Infinity Cache.
  • 2x larger L1 cache
    PowerColor Hellhound Radeon RX 7900 XT has more L1 cache than the average graphics card (256 vs 128). The average graphics card has 128 L1 cache.
  • 2.63x more transistors
    PowerColor Hellhound Radeon RX 7900 XT has more transistors than the average graphics card (57,700 million vs 21,900 million). The average graphics card has 21,900 million transistors.
  • Newer DisplayPort version
    PowerColor Hellhound Radeon RX 7900 XT supports a newer DisplayPort version than the average graphics card (2.1 vs 1.4a).
  • Includes dual BIOS
    PowerColor Hellhound Radeon RX 7900 XT includes dual BIOS, the average graphics card does not.

Total
Performance
Memory
Platform & Features
Connectivity & Media
Power & Cooling
  • 12.1% lower base clock speed
    PowerColor Hellhound Radeon RX 7900 XT has a lower base GPU clock than the average graphics card (1,687 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.
  • 24 fewer AI cores
    PowerColor Hellhound Radeon RX 7900 XT has fewer AI cores than the average graphics card (168 vs 192). The average graphics card has 192 AI cores.
  • 77.9% lower INT8 performance
    PowerColor Hellhound Radeon RX 7900 XT has a lower INT8 performance than the average graphics card (103 TOPS vs 466 TOPS). The average graphics card has INT8 performance of 466 TOPS.
  • 81.3% smaller L2 cache
    PowerColor Hellhound Radeon RX 7900 XT has fewer L2 cache than the average graphics card (6 MB vs 32 MB). The average graphics card has 32 MB L2 cache.
  • No DLSS support
    PowerColor Hellhound Radeon RX 7900 XT does not support DLSS, the average graphics card does.
  • 73.9% larger GPU die
    PowerColor Hellhound Radeon RX 7900 XT has a higher GPU die size than the average graphics card (529 mm² vs 304.25 mm²). The average graphics card has a GPU die size of 304.25 mm².
  • 1 older
    PowerColor Hellhound Radeon RX 7900 XT was released earlier than the average graphics card (2,022 vs 2,023).
  • Older OpenCL version
    PowerColor Hellhound Radeon RX 7900 XT supports an older OpenCL version than the average graphics card (2.2 vs 3.0).
  • 39.5% higher TDP
    PowerColor Hellhound Radeon RX 7900 XT has a higher TDP than the average graphics card (300 W vs 215 W). The average graphics card has a TDP of 215 W.
  • 15.4% higher PSU requirement
    PowerColor Hellhound Radeon RX 7900 XT has a higher PSU requirement than the average graphics card (750 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
  • 17 °C lower thermal ceiling
    PowerColor Hellhound Radeon RX 7900 XT 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.
  • 36.4% higher peak power draw
    PowerColor Hellhound Radeon RX 7900 XT has a higher peak power draw than the average graphics card (300 W vs 220 W). The average graphics card has a peak power draw of 220 W.
  • 1 slot/s wider design
    PowerColor Hellhound Radeon RX 7900 XT occupies more slots than the average graphics card (3 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
  • No RGB lighting
    PowerColor Hellhound Radeon RX 7900 XT does not include RGB lighting, the average graphics card does.
  • 20 mm higher card profile
    PowerColor Hellhound Radeon RX 7900 XT is taller than the average graphics card (147 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • 34.63 mm longer card length
    PowerColor Hellhound Radeon RX 7900 XT is longer than the average graphics card (320 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.
  • No DLSS support
    PowerColor Hellhound Radeon RX 7900 XT 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 Hellhound Radeon RX 7900 XT does not support DLSS, the average graphics card does.
  • 1 slot/s wider design
    PowerColor Hellhound Radeon RX 7900 XT 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

    PowerColor Hellhound Radeon RX 7900 XT 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
  • 39.5% higher TDP
    PowerColor Hellhound Radeon RX 7900 XT 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 Hellhound Radeon RX 7900 XT 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
  • No RGB lighting
    PowerColor Hellhound Radeon RX 7900 XT does not include RGB lighting, the average graphics card does.
    What it is: Includes customizable RGB lighting effects
    When it matters: When the GPU is part of a windowed build with synchronized lighting.

    Importance: LOW

    PowerColor Hellhound Radeon RX 7900 XT does not include RGB lighting, the average graphics card does.
  • 20 mm higher card profile
    PowerColor Hellhound Radeon RX 7900 XT is taller than the average graphics card (147 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 Hellhound Radeon RX 7900 XT is taller than the average graphics card (147 mm vs 127 mm). The average graphics card has a height of 127 mm.147 mm vs 127 mm
  • 12.1% lower base clock speed
    PowerColor Hellhound Radeon RX 7900 XT has a lower base GPU clock than the average graphics card (1,687 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.
    What it is: Base operating frequency of the GPU core under standard conditions
    When it matters: When you want to understand the card's guaranteed starting frequency instead of looking only at optimistic boost figures.

    Importance: HIGH

    PowerColor Hellhound Radeon RX 7900 XT has a lower base GPU clock than the average graphics card (1,687 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.1687 MHz vs 1920 MHz
  • 81.3% smaller L2 cache
    PowerColor Hellhound Radeon RX 7900 XT has fewer L2 cache than the average graphics card (6 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 Hellhound Radeon RX 7900 XT has fewer L2 cache than the average graphics card (6 MB vs 32 MB). The average graphics card has 32 MB L2 cache.6 MB vs 32 MB
  • 34.63 mm longer card length
    PowerColor Hellhound Radeon RX 7900 XT is longer than the average graphics card (320 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

    PowerColor Hellhound Radeon RX 7900 XT is longer than the average graphics card (320 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.320 mm vs 285.37 mm
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Graphic comparison of PowerColor Hellhound Radeon RX 7900 XT and

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Third-party reviews

What customers like about PowerColor Hellhound Radeon RX 7900 XT?

  • Excellent 1440p and strong 4K rasterization performance
  • Thermal performance is significantly better than the AMD reference design
  • Quiet operation with a fan profile focused on low noise
  • Great value, often priced competitively at the same MSRP as reference cards
  • Solid build quality featuring a metal backplate and sturdy materials
  • Includes a free anti-sag support bracket
  • Lower power consumption compared to the 7900 XTX variant

What customers dislike about PowerColor Hellhound Radeon RX 7900 XT?

  • Frequent reports of audible coil whine, especially under high load
  • Ray tracing performance lags significantly behind Nvidia's 40-series alternatives
  • Very large physical footprint ('triple-slot' thickness) may not fit in smaller cases
  • Limited LED customization with only a toggle for teal and purple colors (not full RGB)
  • Occasional software bugs and driver timeout crashes reported by some users
  • Multi-monitor support issues reported in certain configurations

Expert reviews

P
pcmasters.de
06/02/2024
PowerColor Radeon RX 7900 XT im Test als Hellhound Spectral White

Overview and Design The PowerColor Radeon RX 7900 XT Hellhound Spectral White is a high-end graphics card built on AMD's NAVI31 chip architecture (featuring 5,376 stream processors and 20 GB of GDDR6 memory) that stands out for its striking, fully white aesthetic. PowerColor went beyond typical design efforts by successfully coloring not just the cooler shroud, fans, and backplate...Read more

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E
elchapuzasinformatico.com
03/12/2022
PowerColor muestra en profundidad sus GPU Hellhound Radeon RX 7900 XTX y RX 7900 XT

The PowerColor Hellhound Radeon RX 7900 XTX, reviewed by El Chapuzas Informático, excels with a robust 20-phase VRM and a large triple-fan cooler, offering superior thermal performance and silent operation compared to the reference model. It delivers exceptional 4K gaming performance and features a dual-BIOS for switching between overclocked and silent modes. However, the card’s...Read more

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Video reviews

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