Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7950 3-way Crossfire Radeon HD 7970 GHz Toxic 6GB Edition
Red Dead Redemption 2 10% 35%
Cyberpunk 2077 24% 85%
Dragon Ball Z Kakarot 45% 17%
Microsoft Flight Simulator 24% 85%
Call of Duty: Modern Warfare 10% 35%
Doom Eternal 23% 16%
FIFA 20 52% 28%
Grand Theft Auto VI 37% 106%
Need For Speed Heat 10% 35%
Halo: Reach 71% 57%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7950 3-way Crossfire are significantly better than the AMD Radeon HD 7970 GHz Toxic 6GB Edition.

The HD 7970 has a 300 MHz higher core clock speed than the HD 7950, but the HD 7950 has 208 more Texture Mapping Units than the HD 7970. As a result, the HD 7950 exhibits a 128 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 300 MHz higher core clock speed than the HD 7950, but the HD 7950 has 64 more Render Output Units than the HD 7970. As a result, the HD 7950 exhibits a 41.6 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 HD 7970 was released less than a year after the HD 7950, and so they are likely to have similar driver support for optimizing performance when running the latest games.

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 HD 7950 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 HD 7950 also has superior memory performance overall.

The HD 7950 has 432 GB/sec greater memory bandwidth than the HD 7970, which means that the memory performance of the HD 7950 is massively better than the HD 7970.

The Radeon HD 7950 3-way Crossfire has 5376 Shader Processing Units and the Radeon HD 7970 GHz Toxic 6GB Edition has 2048. However, the actual shader performance of the HD 7950 is 3656 and the actual shader performance of the HD 7970 is 2002. The HD 7950 having 1654 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 7950 delivers a massively smoother and more efficient experience when processing graphical data than the HD 7970.

The Radeon HD 7950 3-way Crossfire requires 540 Watts to run and the Radeon HD 7970 GHz Toxic 6GB Edition requires 265 Watts. The HD 7950 requires 275 Watts more than the HD 7970 to run. The difference is significant enough that the HD 7950 may have an adverse affect on your yearly electricity bills in comparison to the HD 7970.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed800 MHzvs1100 MHz
Boost Clock-vs1150 MHz
ArchitectureGCN 1.0 Tahiti PRO (x3)GCN 1.0 Tahiti XT2
OC Potential Fair vs Poor
Driver Support Good vs Good
Release Date01 Jan 2012vs01 Aug 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
10
1600x900 - vs green tick
10
1920x1080
10
green tick vs
8.9
2560x1440 - vs green tick
6.8
3840x2160 - vs green tick
5.2

GPU Memory

Memory9216 MBvs6144 MB
Memory Speed1250 MHzvs1500 MHz
Memory Bus1152 Bitvs384 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth720GB/secvs288GB/sec
L2 Cache 2304 KB green tick vs 768 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units5376vs2048
Actual Shader Performance100%vs96%
Technology28nmvs28nm
Texture Mapping Units336vs128
Texture Rate268.8 GTexel/svs140.8 GTexel/s
Render Output Units96vs32
Pixel Rate76.8 GPixel/svs35.2 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections3vs2
HDMI Connections3vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power540 Wattsvs265 Watts
Recommended PSU--

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3570K 3.4GHzvsIntel 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 7950 3-way Crossfire is a solution of three Radeon HD 7950 put together using AMD'S Crossfire technology.
Check the page of Radeon HD 7950 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 somewhat superior to a single Radeon HD 7990 performing by itself it might be worse (depending on whether or not the 3D game supports crossfire or in the graphics driver) than a single Radeon HD 7950. Expect this combination to draw up to 540 Watt though the average power consumption should be slightly lower.
Even the most demanding games will run at the highest settings.
Radeon HD 7970 GHz Toxic 6GB Edition is a special edition of Radeon HD 7970 GHz Edition.
It comes with 2 modes: a default core-clock of 1050MHz that goes up to 1100MHz in Turbo or a default core-clock of 1100MHz that goes up to 1200MHz. It also features a new cooling system with 2 huge fans. The memory clock will also be raised to 1600MHz, if using the highest option (lethal Turbo mode).
Using the lethal turbo mode, the performance boost is around 6% than reference Radeon HD 7970 GHz Edition.
Recommended CPU
Possible GPU Upgrades
GPU Variants
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