Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 290X PowerColor PCS+ 4GB Edition Crossfire Radeon HD 7950 3-way Crossfire
Red Dead Redemption 2 22% 10%
Halo: Reach 75% 71%
Cyberpunk 2077 7% 24%
Call of Duty: Modern Warfare 22% 10%
Doom Eternal 33% 23%
Microsoft Flight Simulator 7% 24%
Grand Theft Auto VI 19% 37%
Dragon Ball Z Kakarot 52% 45%
Star Wars: Jedi - Fallen Order 7% 24%
Need For Speed Heat 22% 10%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 290X PowerColor PCS+ 4GB Edition Crossfire are very slightly better than the AMD Radeon HD 7950 3-way Crossfire.

The R9 290X has a 240 MHz higher core clock speed and 16 more Texture Mapping Units than the HD 7950. This results in the R9 290X providing 97.3 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The R9 290X has a 240 MHz higher core clock speed and 32 more Render Output Units than the HD 7950. This results in the R9 290X providing 56.3 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The R9 290X was released over a year more recently than the HD 7950, and so the R9 290X is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 7950.

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 1024 MB more video memory than the R9 290X, 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 28.8 GB/sec greater memory bandwidth than the R9 290X, which means that the memory performance of the HD 7950 is slightly better than the R9 290X.

The Radeon R9 290X PowerColor PCS+ 4GB Edition Crossfire has 5632 Shader Processing Units and the Radeon HD 7950 3-way Crossfire has 5376. However, the actual shader performance of the R9 290X is 4979 and the actual shader performance of the HD 7950 is 3656. The R9 290X having 1323 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 290X delivers a massively smoother and more efficient experience when processing graphical data than the HD 7950.

The Radeon HD 7950 3-way Crossfire requires 540 Watts to run but there is no entry for the R9 290X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1040 MHzvs800 MHz
Boost Clock-vs-
ArchitectureGCN 1.1 Hawaii XT (x2)GCN 1.0 Tahiti PRO (x3)
OC Potential Poor vs Fair
Driver Support Great vs Good
Release Date07 Jan 2014vs01 Jan 2012
GPU LinkGD LinkGD Link

Resolution Performance

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

GPU Memory

Memory8192 MBvs9216 MB
Memory Speed1350 MHzvs1250 MHz
Memory Bus1024 Bitvs1152 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth691.2GB/secvs720GB/sec
L2 Cache 2048 KB vs green tick 2304 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units5632vs5376
Actual Shader Performance100%vs100%
Texture Mapping Units352vs336
Texture Rate366.1 GTexel/svs268.8 GTexel/s
Render Output Units128vs96
Pixel Rate133.1 GPixel/svs76.8 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs3
HDMI Connections1vs3
DisplayPort Connections-vs-

GPU Power Requirements

Max Power-540 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4770K 4-Core 3.5GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1440vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewThe Crossfire setup of Radeon R9 290X PowerColor PCS+ 4GB Edition.Radeon 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.
Recommended CPU
Possible GPU Upgrades
GPU Variants