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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7950 Boost Edition Crossfire Radeon HD 7790 Crossfire
Cyberpunk 2077 55% 158%
Hyper Scape 5% 75%
Assassins Creed: Valhalla 55% 158%
Far Cry 6 72% 187%
Valorant 89% 82%
Horizon: Zero Dawn 13% 88%
Watch Dogs Legion 19% 98%
Death Stranding 19% 98%
Grand Theft Auto VI 67% 179%
Microsoft Flight Simulator 5% 75%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7950 Boost Edition Crossfire are significantly better than the AMD Radeon HD 7790 Crossfire.

The HD 7790 has a 150 MHz higher core clock speed than the HD 7950, but the HD 7950 has 112 more Texture Mapping Units than the HD 7790. As a result, the HD 7950 exhibits a 78.4 GTexel/s better Texture Fill Rate than the HD 7790. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 7790 has a 150 MHz higher core clock speed than the HD 7950, but the HD 7950 has 32 more Render Output Units than the HD 7790. As a result, the HD 7950 exhibits a 22.4 GPixel/s better Pixel Fill Rate than the HD 7790. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The HD 7790 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 4096 MB more video memory than the HD 7790, 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 288 GB/sec greater memory bandwidth than the HD 7790, which means that the memory performance of the HD 7950 is massively better than the HD 7790.

The Radeon HD 7950 Boost Edition Crossfire has 3584 Shader Processing Units and the Radeon HD 7790 Crossfire has 1792. However, the actual shader performance of the HD 7950 is 2818 and the actual shader performance of the HD 7790 is 1523. The HD 7950 having 1295 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 7790.

The Radeon HD 7790 Crossfire requires 170 Watts to run but there is no entry for the HD 7950. We would recommend a PSU with at least 600 Watts for the HD 7790, but we do not have a recommended PSU wattage for the HD 7950.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed850 MHzvs1000 MHz
Boost Clock925 MHzvs-
ArchitectureGCN 1.0 Tahiti PRO2 (x2)GCN 1.0 Bonaire XT (x2)
OC Potential Fair vs Poor
Driver Support Great vs Good
Release Date01 Aug 2012vs22 Mar 2013
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 MBvs2048 MB
Memory Speed1250 MHzvs1500 MHz
Memory Bus768 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth480GB/secvs192GB/sec
L2 Cache 1536 KB green tick vs 1024 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units3584vs1792
Actual Shader Performance100%vs73%
Texture Mapping Units224vs112
Texture Rate190.4 GTexel/svs112 GTexel/s
Render Output Units64vs32
Pixel Rate54.4 GPixel/svs32 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections1vs2
HDMI Connections1vs1
DisplayPort Connections0vs1

GPU Power Requirements

Max Power-170 Watts
Recommended PSU-600 Watts & 42 Amps

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-3770K 4-Core 3.5GHzvsIntel Core i5-3330 3.0GHz
Recommended RAM12 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1600vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewThe Crossfire setup of Radeon HD 7950 Boost Edition.Radeon HD 7790 Crossfire is a solution of two Radeon HD 7790 put together using AMD'S Crossfire technology.
Check the page of Radeon HD 7790 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 around 55% better a single Radeon HD 7790 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 HD 7790. Still, it might provide similar performance to a single Radeon HD 7950. Expect this combination to draw up to 170 Watt though the average power consumption should be slightly lower.
Most demanding games will run at the highest settings.
Recommended CPU
Possible GPU Upgrades
GPU Variants