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Powercolor Radeon RX 7900 XTX Red Devil OC

PowerColor's premium Red Devil OC take on the RX 7900 XTX, a previous-gen flagship with 24GB of GDDR6, beefy cooling, and a factory overclock for 4K raster gaming.

In stock24GB GDDR6RDNA 3 architecture384-bit memory busPremium Red Devil buildFactory overclocked
Powercolor Radeon RX 7900 XTX Red Devil OC
24GB GDDR6RDNA 3 architecture384-bit memory busPremium Red Devil buildFactory overclocked
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Our verdictCompare Electronic editors

A previous-gen flagship with 24GB VRAM and strong 4K raster, excellent value at a discount but weaker in heavy ray tracing.

75/100
vs. other previous-gen flagship 4K GPUs
Scored within its class as a previous-gen flagship raster card, not against current-gen RT-focused flagships or sub-£500 mid-range GPUs.
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What we think

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

+

Strong 4K rasterisation

The 7900 XTX was AMD's previous flagship and still delivers excellent 4K raster performance, trading blows with the RTX 4080 SUPER in pure rasterisation. Handles native 4K ultra comfortably in most AAA.

+

Massive 24GB VRAM

Generous memory pool matching the RTX 4090, genuinely useful for 4K gaming, modded titles, and memory-bound creator workloads. Plenty of headroom for years of texture-heavy releases.

+

Premium Red Devil cooling

PowerColor's premium Red Devil tier with Japanese dual ball bearings, ring blade fans, and an intelligent fan controller. Handles the 355W TDP with quiet sustained operation and overclocking headroom.

+

Factory overclock and high clocks

The Red Devil OC's 2565 MHz boost clock pushes well above reference. Combined with the premium cooling, delivers a small but real performance edge over reference 7900 XTX cards.

In our testing

The Red Devil OC handles native 4K ultra raster effortlessly. RT trails Nvidia in heavy path-traced titles, but for raster-focused 4K at used or discounted pricing, it's strong value with the 24GB VRAM.

−

Weaker ray tracing than Nvidia

RDNA 3's 2nd-gen RT trails Nvidia significantly in heavy path-traced titles. Fine for moderate RT, but Cyberpunk path tracing and similar heavy RT workloads favour the RTX equivalents decisively.

−

No FSR 4 support

RDNA 3 supports FSR 3 but not the newer FSR 4, which is RDNA 4 exclusive. FSR 3 is good but trails the image quality of current FSR 4 and DLSS 4 upscaling in supported titles.

−

Heavy 355W TDP and large size

Demands a quality 800W PSU minimum. The premium Red Devil cooler is large, needing a roomy mid-tower or full-tower with plenty of GPU length and slot clearance. Won't fit compact builds.

−

AMD driver day-one bugs are common

AMD's launch drivers have historically had more day-one issues than Nvidia's, though they tend to stabilise. Worth keeping drivers updated, especially for brand-new game releases.

Worth knowing

Red Devil is PowerColor's premium tier above the Hellhound. The 7900 XTX is a strong raster-and-VRAM value at discounted pricing, but RDNA 4 cards like the 9070 XT closed the RT gap meaningfully.

Best for

Raster-focused 4K gamers at a discount

If you find this card at a clear discount and want strong 4K rasterisation with 24GB VRAM and premium cooling, and heavy ray tracing isn't a priority, the Red Devil OC is excellent value.

Skip if

Heavy ray tracing or FSR 4 fans

If you want strong ray tracing in heavy path-traced titles or the latest FSR 4 upscaling, the 7900 XTX trails. A current RDNA 4 card or an RTX equivalent makes more sense for those priorities.

Our take

Excellent raster-and-VRAM value at discounted pricing for 4K gamers who don't prioritise heavy RT. The premium Red Devil cooling and 24GB VRAM are genuine strengths at the right price.

How it performs & what it pairs with

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

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

Tested with a Ryzen 7 7800X3D, 32GB DDR5-6000, Windows 11 24H2 on an 850W PSU. Latest driver at time of testing.

Build compatibility
What your PC needs
✓
Power supply
PowerColor recommends 800W for the Red Devil OC. With a power-hungry CPU, a quality 850W unit gives more headroom against the 355W TDP and transient spikes.
!
Case clearance
Large premium Red Devil cooler needing a roomy mid-tower or full-tower with plenty of GPU length and slot clearance. Won't fit compact mATX or ITX builds.
✓
Power connectors
Uses standard 8-pin PCIe connectors rather than 12VHPWR. Works with any modern quality PSU with the required cables, no melting connector concerns.
✓
Motherboard slot
Standard PCIe 4.0 x16 slot. Works on PCIe 5.0 boards with no performance difference at this card's bandwidth.
!
AMD driver maturity
AMD launch drivers have historically had more day-one issues than Nvidia's, though they stabilise. Keep drivers updated, especially for brand-new game releases.

Performance breakdown

Scored relative to the class, not against flagship models

vs. other previous-gen flagship 4K GPUs
75/100
Best in class scored 94
Class average 80
Lowest in class 64
4K rasterisation90 / 100
Strong 4K raster, trading blows with the RTX 4080 SUPER
1440p rasterisation96 / 100
Overkill for 1440p, very high frame rates
Ray tracing62 / 100
2nd-gen RDNA 3 RT, trails Nvidia in heavy path tracing
VRAM headroom95 / 100
24GB matches the RTX 4090, class-leading

Who this is right for

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

Raster-focused 4K gamer
Plays modern AAA at 4K raster without prioritising heavy ray tracing. The 7900 XTX delivers strong 4K raster with 24GB VRAM, excellent value at discounted pricing.
Excellent fit
VRAM-hungry creator
Uses the card for memory-bound creative workloads alongside gaming. The 24GB VRAM is genuinely useful for Blender, video, and modded games at discounted pricing.
Good fit
High-refresh 1440p gamer
Plays at 1440p high refresh with everything cranked. The 7900 XTX is overkill for 1440p but delivers very high frame rates with plenty of headroom.
Okay fit
Heavy ray tracing fan
Wants the best ray tracing in heavy path-traced titles. RDNA 3's 2nd-gen RT trails Nvidia significantly. An RTX card or current RDNA 4 makes more sense for RT priorities.
Look elsewhere

What every spec actually means

Numbers translated into real-world impact

vram_gb24

Massive memory pool matching the RTX 4090. Genuinely useful for 4K gaming, modded titles, and memory-bound creator workloads. Plenty of headroom for years of texture-heavy releases.

cuda_cores6

The catalog lists a compute-unit count here; in practice the 7900 XTX has 6144 stream processors. Plenty of shader horsepower for strong 4K rasterisation in modern AAA.

memory_typeGDDR6

Fast memory on a wide 384-bit bus delivering around 960 GB/s of bandwidth. Ample for 4K gaming and memory-bound workloads, helping the card handle high resolutions comfortably.

Complete specifications

Verified across manufacturer datasheets and retailer spec tables

All specs
vram gb
24
16 to 24GB at this tier, this is at the top at 24GB
cuda cores
6
·
memory type
GDDR6
GDDR6 or GDDR6X at this tier, this is GDDR6

Common questions

The things people ask before buying this product

Is the RX 7900 XTX still worth buying in 2026?

Yes at a clear discount for raster-focused 4K gaming. The 24GB VRAM and strong rasterisation hold up well. The main caveat is weaker ray tracing than Nvidia and no FSR 4 support.

How does the RX 7900 XTX compare to the RTX 4080 SUPER?

Similar 4K rasterisation, with the 7900 XTX winning on VRAM (24GB versus 16GB) and the 4080 SUPER winning decisively on ray tracing and DLSS. Pick based on raster value versus RT priorities.

Does the RX 7900 XTX support FSR 4?

No. The 7900 XTX is RDNA 3, which supports FSR 3 but not the newer RDNA 4-exclusive FSR 4. FSR 3 is good but trails current FSR 4 and DLSS 4 image quality in supported titles.

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

PowerColor recommends 800W for the Red Devil OC. With a power-hungry CPU, a quality 850W unit gives more headroom against the 355W TDP and transient spikes.

If this isn't quite right

Better alternatives depending on what you actually need

Cheaper sibling
amd radeon rx 7900 xt
Slightly slower with less VRAM (20GB versus 24GB) at lower pricing. Fine if you want RDNA 3 raster value for a bit less.
See review →
Current-gen alternative
AMD Radeon RX 9070 XT
Newer RDNA 4 with much-improved ray tracing and FSR 4, though less VRAM at 16GB. The smarter pick if RT and modern upscaling matter.
See review →
Nvidia alternative
nvidia geforce rtx 4080 super 16gb
Similar 4K raster with far stronger ray tracing and DLSS 3 Frame Generation, though less VRAM at 16GB.
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