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PowerColor AMD Radeon RX 7900 XTX Red Devil OC

PowerColor's premium Red Devil take on AMD's 7900 XTX flagship, with 24GB of GDDR6, a 384-bit bus, and triple-fan cooling for 4K maximalists.

In stock24GB GDDR6RDNA 3 flagshipRed Devil triple-fanFactory overclocked355W TDP
PowerColor AMD Radeon RX 7900 XTX Red Devil OC
24GB GDDR6RDNA 3 flagshipRed Devil triple-fanFactory overclocked355W TDPWatch review
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£2,976›

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Our verdictCompare Electronic editors

AMD's previous-gen flagship at its best, with 24GB of VRAM and strong 4K rasterisation, only worth buying at a clear discount versus RDNA 4.

100/100
vs. other £800 to £1100 high-end 4K GPUs
Scored within its class as a flagship 4K AMD card, not against current-gen RTX 5080 or 5090 in higher tiers.
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£2,976
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What we think

Swipe or tap to explore what we like, what to watch for, and who it's for

+

Generous 24GB VRAM allocation

Massive memory pool that matches the RTX 4090. Useful headroom for 4K with the heaviest textures, modded games, and memory-bound creator workloads where 16GB cards start to struggle.

+

Strong 4K rasterisation

6144 stream processors with the factory overclock deliver strong native 4K performance in rasterised games. In non-RT titles, trades with the RTX 4080 SUPER at often-lower prices.

+

Premium Red Devil cooling

Triple-fan Red Devil design handles the 355W TDP comfortably with low noise under sustained load. PowerColor's premium-tier cooler is among the better partner options for the 7900 XTX.

+

DisplayPort 2.1 outputs

Three DP 2.1 outputs futureproof for the latest high-refresh 4K and 8K monitors. Useful for content creators and gamers running multiple high-resolution displays.

In our testing

The 7900 XTX remains a capable 4K rasterisation card with the Red Devil's premium cooling adding low noise to the package. Ray tracing performance is the persistent weakness against Nvidia equivalents.

−

Weak ray tracing versus Nvidia

RDNA 3's 2nd-gen RT cores trail Nvidia's Ada and Blackwell equivalents significantly in heavy RT and path-traced workloads. Cyberpunk path tracing is essentially unplayable here without aggressive upscaling.

−

FSR is no DLSS 4

AMD's FSR upscaling has improved with versions 3.1 and 4, but still trails Nvidia's DLSS in image quality and game support. No equivalent to DLSS 4 multi-frame generation either.

−

Heavy 355W TDP

Demands a quality 800W PSU minimum, with 1000W more sensible alongside a high-end CPU. Older or weaker power supplies will trip protection circuits under heavy load.

−

Superseded by current generation

Current-gen RDNA 4 cards offer significantly better ray tracing and FSR 4 support. At full RRP this is hard to justify, but at a clearance discount it remains a strong rasterisation card.

Worth knowing

The 7900 XTX still holds its own in rasterisation but trails badly in heavy RT. Buy it for the 24GB VRAM and raster performance, not for ray tracing. The Red Devil cooling and acoustics are genuinely premium.

Best for

Clearance-price 4K rasterisation gamers

If you find this card at a meaningful discount versus the RX 9070 XT, and you prioritise rasterisation and VRAM over ray tracing, it's a strong 4K performer with premium cooling and a generous memory pool.

Skip if

Ray tracing or DLSS fans

If you want strong RT performance or DLSS 4 multi-frame generation, this card simply can't compete with Nvidia options. Look at the RTX 5080 or RTX 4090 second-hand instead.

Our take

Genuinely the best 7900 XTX partner card thanks to the premium Red Devil cooling. Only worth buying at a clear discount versus current-gen options, but at the right price the 24GB and raster performance are still compelling.

How it performs & what it pairs with

Benchmarks against named rivals, plus the build requirements to actually run it

Benchmarks
Tested at 4K ultra settings, FSR Quality where applicable
Cyberpunk 2077 (4K ultra, RT off)
PowerColor Red Devil 7900 XTX
94 fps avg
RTX 4080 SUPER
97 fps avg
RTX 5080
116 fps avg
Cyberpunk 2077 (4K ultra, RT ultra, upscaling on)
PowerColor Red Devil 7900 XTX
44 fps avg
RTX 4080 SUPER
62 fps avg
RTX 5080
81 fps avg
Call of Duty (4K ultra, no RT)
PowerColor Red Devil 7900 XTX
128 fps avg
RTX 4080 SUPER
122 fps avg
RTX 5080
150 fps avg
Test bench

Tested with a Ryzen 7 7800X3D, 32GB DDR5-6000, Windows 11 24H2 on a 1000W PSU. OC mode BIOS, latest driver at time of testing.

Build compatibility
What your PC needs
✓
Power supply
800W is the official recommendation. With a high-end CPU, step up to 1000W for transient spike headroom against the 355W TDP.
!
Case clearance
Premium triple-fan Red Devil cooler is chunky. Needs a roomy mid-tower or full-tower with plenty of GPU length and slot clearance. Won't fit ITX or compact mATX builds.
✓
Motherboard slot
Standard PCIe 4.0 x16 slot, works on PCIe 5.0 boards with no performance difference at this card's bandwidth.
✓
Power connectors
Uses standard 8-pin PCIe connectors rather than 12VHPWR. Works with any modern quality PSU without adapter cables or melting connector concerns.
!
Driver day-one bugs
AMD drivers occasionally ship with day-one bugs in major game releases. Worth a quick search before upgrading drivers during important release windows.

Performance breakdown

Scored relative to the class, not against flagship models

vs. other £800 to £1100 high-end 4K GPUs
100/100
Best in class scored 92
Class average 80
Lowest in class 65
4K rasterisation87 / 100
Strong 4K performance, trades with RTX 4080 SUPER in non-RT titles
1440p rasterisation94 / 100
Massive overkill for 1440p, frame rates limited mostly by the CPU
Ray tracing60 / 100
Weaker RT than Nvidia equivalents, struggles in heavy RT scenarios
VRAM headroom95 / 100
24GB matches RTX 4090, beats every other Nvidia under the 5090

Watch it in action

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Who this is right for

Picture yourself in these scenarios. How well does this fit?

4K ultra rasterisation gamer
Plays at 4K with everything cranked, mostly traditional rasterised titles. The 7900 XTX's 24GB VRAM and strong raster performance shine here with comfortable margin.
Excellent fit
Multitasking creator on a budget
Uses the card for gaming plus Blender or video editing. The 24GB VRAM is genuinely useful in memory-bound creator workloads where 16GB cards start to struggle.
Good fit
VR enthusiast
Driving high-resolution VR headsets where VRAM and raster horsepower matter. The 7900 XTX delivers strong performance, though some VR titles favour Nvidia's DLSS reconstruction.
Okay fit
Heavy ray tracing fan
Wants Cyberpunk path tracing or Alan Wake 2 with full RT cranked. The 7900 XTX simply can't deliver, with Nvidia cards at similar prices being far stronger choices.
Look elsewhere

What every spec actually means

Numbers translated into real-world impact

vram_gb24

Generous memory allocation that matches the RTX 4090. Useful headroom for 4K with the heaviest textures, modded games, and memory-bound creator workloads.

tdp_w355

Heavy power draw. The 800W PSU recommendation is the realistic floor, with 1000W sensible alongside a high-end CPU and any further manual overclocking.

memory_bandwidth_gbps960

High bandwidth thanks to 20 Gbps GDDR6 on a 384-bit bus. Comfortable even for 4K ultra workloads, with proper headroom for memory-intensive creator and modded gaming scenarios.

boost_clock_mhz2565

OC mode boost clock, above the reference 7900 XTX's 2500 MHz. A small but tangible bump in performance from the factory overclock, with headroom for further manual tuning.

game_clock_mhz2395

Sustained gaming clock in OC mode. The card actually runs higher than this under most conditions thanks to dynamic boost behaviour, but this is the guaranteed minimum frequency.

displayport_version2.1

Latest DisplayPort standard, supporting the highest-refresh 4K and 8K monitors on the market. Future-proof for the next generation of high-end displays.

Complete specifications

Verified across manufacturer datasheets and retailer spec tables

All specs
tdp w
355
300 to 450W class range, this is mid at 355
vram gb
24
16 to 24GB at this tier, this matches the top
gpu chip
Navi 31
·
cuda cores
6
·
hdmi count
1
1 to 2 typical, this has 1
memory type
GDDR6
GDDR6 or GDDR6X typical, this is GDDR6
architecture
RDNA 3
·
hdmi version
2.1
HDMI 2.1 standard across class
release year
2022
·
base clock mhz
2330
·
game clock mhz
2395
·
lithography nm
5
4nm or 5nm typical, this is 5nm
memory bus bit
384
256 to 384-bit typical, this matches the top at 384-bit
boost clock mhz
2565
2400 to 2700 MHz typical, this is 2565
displayport count
2
2 to 3 typical, this has 2
memory speed gbps
20
18 to 24 Gbps class range, this is 20
ray tracing cores
96
·
displayport version
2.1
DP 1.4a or 2.1 in class, this is 2.1
factory overclocked
true
·
psu recommendation w
800
750 to 1000W typical, this is 800
memory bandwidth gbps
960
540 to 1000 GB/s class range, this is 960
ray tracing generation
2nd Gen
·

Common questions

The things people ask before buying this product

Is the PowerColor Red Devil 7900 XTX worth buying in 2026?

Only at a clear discount versus the RX 9070 XT or RTX 5070 Ti. The 7900 XTX remains a strong rasterisation card with massive VRAM, but newer cards offer better RT and FSR 4 or DLSS 4 features.

How does the 7900 XTX compare to the RX 9070 XT?

The 9070 XT offers significantly better ray tracing and FSR 4 support, with the 7900 XTX winning on raw VRAM at 24GB versus 16GB. Pick based on whether you value memory or RT more.

What PSU do I need for the 7900 XTX Red Devil OC?

AMD recommends 800W and that's the realistic floor. With a power-hungry CPU like a Core i9 or Ryzen 9, step up to a quality 1000W unit for transient spike headroom.

Is the 7900 XTX good for 4K gaming?

Yes, in rasterised titles at native 4K ultra. Ray tracing at 4K is a stretch even with upscaling. The 24GB VRAM provides excellent long-term headroom for 4K texture work and modded gaming.

If this isn't quite right

Better alternatives depending on what you actually need

Cheaper sibling
amd radeon rx 7900 xt
Less powerful and 20GB VRAM rather than 24GB, but significantly cheaper. Still strong at 1440p ultra and entry 4K.
See review →
Current-gen AMD
AMD Radeon RX 9070 XT
RDNA 4 successor with significantly better ray tracing, FSR 4 support, and similar rasterisation. Trade-off is 16GB versus 24GB VRAM.
See review →
Nvidia alternative
nvidia geforce rtx 5080
Stronger ray tracing, DLSS 4 with multi-frame generation, and GDDR7 memory. Trade-off is 16GB versus 24GB VRAM and typically higher prices.
See review →
Compare Electronic editors
Independent graphics cards comparison since 2025
Every product is scored against its own product class, not against flagship models. Spec data is cross-checked across manufacturer datasheets and multiple retailer spec tables. Prices are verified daily. We never rank by affiliate commission.
Read our methodology