Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7970 VTX3D 3GB Edition Radeon R9 280X Crossfire
Cyberpunk 2077 64% 5%
Hitman 3 113% 36%
Assassins Creed: Valhalla 50% 4%
Call of Duty: Black Ops Cold War 45% 7%
FIFA 21 17% 47%
Grand Theft Auto VI 130% 47%
Far Cry 6 137% 52%
Genshin Impact 64% 5%
Battlefield 6 113% 36%
Resident Evil 8 64% 5%

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 VTX3D 3GB 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 HD 7970 VTX3D 3GB Edition has 1792 Shader Processing Units and the Radeon R9 280X Crossfire has 4096. 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 HD 7970 VTX3D 3GB Edition requires 300 Watts to run and the Radeon R9 280X Crossfire requires 550 Watts. We would recommend a PSU with at least 500 Watts for the HD 7970 and a PSU with at least 1000 Watts for the R9 280X. 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 Speed925 MHzvs850 MHz
Boost Clock-vs1000 MHz
ArchitectureGCN 1.0 Tahiti XTGCN 1.1 Tahiti XTL (x2)
OC Potential Good vs Fair
Driver Support Good vs -
Release Date01 Feb 2012vs01 Oct 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
10
green tick vs -
1920x1080
8.3
vs green tick
10
2560x1440
6.2
green tick vs -
3840x2160
4.7
green tick vs -

GPU Memory

Memory3072 MBvs6144 MB
Memory Speed1375 MHzvs1500 MHz
Memory Bus384 Bitvs768 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth264GB/secvs576GB/sec
L2 Cache 768 KB vs green tick 1536 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1792vs4096
Actual Shader Performance68%vs100%
Technology28nmvs28nm
Texture Mapping Units128vs256
Texture Rate118.4 GTexel/svs217.6 GTexel/s
Render Output Units32vs64
Pixel Rate29.6 GPixel/svs54.4 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections3vs0
HDMI Connections1vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power300 Wattsvs550 Watts
Recommended PSU500 Watts & 40 Ampsvs1000 Watts & 42 Amps

GPU Features

DirectX12.0vs11.2
Shader Model5.0vs5.0
Open GL4.4vs4.3
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

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

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 7970 VTX3D 3GB Edition is a special edition of high-end Radeon HD 7970.

It has no overclocking out of the box. Therefore, it performs like the reference AMD Radeon HD 7970.
Radeon 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.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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