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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 280X Crossfire Radeon HD 7970 Asus Edition
Cyberpunk 2077 5% 64%
Assassins Creed: Valhalla 4% 50%
Call of Duty: Black Ops Cold War 7% 45%
Hitman 3 36% 113%
Grand Theft Auto VI 47% 130%
FIFA 21 47% 17%
Far Cry 6 52% 137%
Genshin Impact 5% 64%
World of Warcraft: Shadowlands 50% 135%
Watch Dogs Legion 1% 58%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 280X Crossfire are significantly better than the AMD Radeon HD 7970 Asus Edition.

The HD 7970 has a 75 MHz higher core clock speed than the R9 280X, but the R9 280X has 128 more Texture Mapping Units than the HD 7970. As a result, the R9 280X exhibits a 99.2 GTexel/s better Texture Fill Rate than the HD 7970. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 7970 has a 75 MHz higher core clock speed than the R9 280X, but the R9 280X has 32 more Render Output Units than the HD 7970. As a result, the R9 280X exhibits a 24.8 GPixel/s better Pixel Fill Rate than the HD 7970. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The R9 280X was released over a year more recently than the HD 7970, and so the R9 280X is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 7970.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The R9 280X has 3072 MB more video memory than the HD 7970, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the R9 280X also has superior memory performance overall.

The R9 280X has 312 GB/sec greater memory bandwidth than the HD 7970, which means that the memory performance of the R9 280X is massively better than the HD 7970.

The Radeon R9 280X Crossfire has 4096 Shader Processing Units and the Radeon HD 7970 Asus Edition has 1792. However, the actual shader performance of the HD 7970 is 1409. The R9 280X having 2687 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 280X delivers a massively smoother and more efficient experience when processing graphical data than the HD 7970.

The Radeon R9 280X Crossfire requires 550 Watts to run and the Radeon HD 7970 Asus Edition requires 300 Watts. We would recommend a PSU with at least 1000 Watts for the R9 280X and a PSU with at least 500 Watts for the HD 7970. The R9 280X requires 250 Watts more than the HD 7970 to run. The difference is significant enough that the R9 280X may have an adverse affect on your yearly electricity bills in comparison to the HD 7970.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed850 MHzvs925 MHz
Boost Clock1000 MHzvs-
ArchitectureGCN 1.1 Tahiti XTL (x2)GCN 1.0 Tahiti XT
OC Potential Fair vs Good
Driver Support - vs Good
Release Date01 Oct 2013vs01 Feb 2012
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - vs green tick
green tick vs
2560x1440 - vs green tick
3840x2160 - vs green tick

GPU Memory

Memory6144 MBvs3072 MB
Memory Speed1500 MHzvs1375 MHz
Memory Bus768 Bitvs384 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth576GB/secvs264GB/sec
L2 Cache 1536 KB green tick vs 768 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units4096vs1792
Actual Shader Performance100%vs68%
Texture Mapping Units256vs128
Texture Rate217.6 GTexel/svs118.4 GTexel/s
Render Output Units64vs32
Pixel Rate54.4 GPixel/svs29.6 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs3
HDMI Connections0vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power550 Wattsvs300 Watts
Recommended PSU1000 Watts & 42 Ampsvs500 Watts & 40 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.3vs4.4
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-3770K 4-Core 3.5GHzvsIntel Core i5-2500K 3.3GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R9 280X Crossfire is a solution of two Radeon R9 280X put together using AMD'S Crossfire technology.
Check the page of Radeon R9 280X to know more about its chip.
Crossfire relies a lot on proper driver support and may suffer from micro-stuttering in lower frame rates (below 30). Benchmarks indicate the performance is overall, is up to 60% better than a single Radeon R9 280X performing by itself but at times (depending whether or not the 3D game supports crossfire or in the graphics driver) it performed worse than a single Radeon R9 280X. Expect this combination to draw up to 550 Watt though the average power consumption should be slightly lower.
Even the most demanding games will run at the highest settings.
Radeon HD 7970 Asus Edition is a special edition of high-end Radeon HD 7970 that has no special features, not even a new cooling system and so its performance is exactly like the reference AMD Radeon HD 7970.
Recommended CPU
Possible GPU Upgrades
GPU Variants