Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7950 VTX3D 3GB Boost X-Edition GeForce GTX 650 1GB
Red Dead Redemption 2 72% 365%
Cyberpunk 2077 137% 539%
Doom Eternal 48% 300%
Call of Duty: Modern Warfare 72% 365%
Dragon Ball Z Kakarot 6% 187%
Halo: Reach 45% 48%
Microsoft Flight Simulator 137% 539%
Star Wars: Jedi - Fallen Order 137% 539%
Grand Theft Auto VI 163% 611%
Need For Speed Heat 72% 365%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7950 VTX3D 3GB Boost X-Edition are massively better than the Nvidia GeForce GTX 650 1GB.

The GTX 650 has a 178 MHz higher core clock speed than the HD 7950, but the HD 7950 has 80 more Texture Mapping Units than the GTX 650. As a result, the HD 7950 exhibits a 64.7 GTexel/s better Texture Fill Rate than the GTX 650. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 650 has a 178 MHz higher core clock speed than the HD 7950, but the HD 7950 has 16 more Render Output Units than the GTX 650. As a result, the HD 7950 exhibits a 11.3 GPixel/s better Pixel Fill Rate than the GTX 650. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 650 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.

The HD 7950 has 2048 MB more video memory than the GTX 650, 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 160 GB/sec greater memory bandwidth than the GTX 650, which means that the memory performance of the HD 7950 is massively better than the GTX 650.

The Radeon HD 7950 VTX3D 3GB Boost X-Edition has 1792 Shader Processing Units and the GeForce GTX 650 1GB has 384. However, the actual shader performance of the HD 7950 is 1417 and the actual shader performance of the GTX 650 is 406. The HD 7950 having 1011 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 GTX 650.

The GeForce GTX 650 1GB requires 64 Watts to run but there is no entry for the HD 7950. We would recommend a PSU with at least 500 Watts for the HD 7950 and a PSU with at least 400 Watts for the GTX 650. The HD 7950 has been recommended a PSU with 100 Watts more than the GTX 650. The difference is significant enough that the HD 7950 may have an adverse affect on your yearly electricity bills in comparison to the GTX 650.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed880 MHzvs1058 MHz
Boost Clock930 MHzvs-
ArchitectureGCN 1.0 Tahiti PRO2Kepler GK107-450-A2
OC Potential Fair vs Fair
Driver Support Great vs Good
Release Date01 Aug 2012vs01 Sep 2012
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
green tick vs
green tick vs
green tick vs
green tick vs

GPU Memory

Memory3072 MBvs1024 MB
Memory Speed1250 MHzvs1250 MHz
Memory Bus384 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth240GB/secvs80GB/sec
L2 Cache 768 KB green tick vs 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units1792vs384
Actual Shader Performance68%vs20%
Texture Mapping Units112vs32
Texture Rate98.6 GTexel/svs33.9 GTexel/s
Render Output Units32vs16
Pixel Rate28.2 GPixel/svs16.9 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections1vs2
HDMI Connections1vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power-64 Watts
Recommended PSU500 Wattsvs400 Watts & 29 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3570K 3.4GHzvsIntel Core i3-3220 3.3GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 7950 VTX3D 3GB Boost X-Edition is a special edition of the high-end Radeon HD 7950 Boost Edition.
This edition comes with a custom cooling solution and overclocking out of the box in the core-clock that was increase by 30MHz to 880MHz. Therefore, the Turbo Boost is now of 930MHz.
Expect a 1.5% performance boost when compared to the reference Radeon HD 7950 Boost Edition.
GeForce GTX 650 1GB is a fast-middle-class GFX based on the 28nm Kepler architecture.
It's based on the Kepler GK107 Core (same used on GT 640) with a count of 384 CUDA Cores (just like GT 640) but paired with fast GDDR5.
Therefore, GeForce GTX 650 1GB can be addressed as a fast GeForce GT 640 paired with fast GDDR5.
Gaming benchmarks indicate its performance is about 1% better than previous generation - GeForce GTX 550 Ti which might not make it a worthy replacement due to its extra cost and that the most demanding games (Metro 2033, The Witcher II, etc) still require reduced settings while modern demanding games (Battlefield 3, Max Payne 3) are playable at high settings but not paired with extreme resolutions.
Recommended CPU
Possible GPU Upgrades
GPU Variants