Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 6950 PowerColor 2GB Edition GeForce GTX 650 Gigabyte OC 1GB Edition
Cyberpunk 2077 172% 372%
Assassins Creed: Valhalla 149% 332%
Call of Duty: Black Ops Cold War 141% 318%
Watch Dogs Legion 163% 356%
FIFA 21 37% 138%
Microsoft Flight Simulator 141% 318%
Godfall 342% 667%
Grand Theft Auto VI 283% 565%
World of Warcraft: Shadowlands 290% 577%
Genshin Impact 172% 372%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 6950 PowerColor 2GB Edition are significantly better than the Nvidia GeForce GTX 650 Gigabyte OC 1GB Edition.

The GTX 650 has a 310 MHz higher core clock speed than the HD 6950, but the HD 6950 has 56 more Texture Mapping Units than the GTX 650. As a result, the HD 6950 exhibits a 34.9 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 310 MHz higher core clock speed than the HD 6950, but the HD 6950 has 16 more Render Output Units than the GTX 650. As a result, the HD 6950 exhibits a 7.8 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 over a year more recently than the HD 6950, and so the GTX 650 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 6950.

The HD 6950 has 1024 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 6950 also has superior memory performance overall.

The HD 6950 has 80 GB/sec greater memory bandwidth than the GTX 650, which means that the memory performance of the HD 6950 is much better than the GTX 650.

The Radeon HD 6950 PowerColor 2GB Edition has 1408 Shader Processing Units and the GeForce GTX 650 Gigabyte OC 1GB Edition has 384. However, the actual shader performance of the HD 6950 is 563 and the actual shader performance of the GTX 650 is 426. The HD 6950 having 137 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 6950 delivers a massively smoother and more efficient experience when processing graphical data than the GTX 650.

The GTX 650 transistor size technology is 12 nm (nanometers) smaller than the HD 6950. This means that the GTX 650 is expected to run slightly cooler and achieve higher clock frequencies than the HD 6950.

The Radeon HD 6950 PowerColor 2GB Edition requires 200 Watts to run but there is no entry for the GeForce GTX 650 Gigabyte OC 1GB Edition. We would recommend a PSU with at least 500 Watts for the HD 6950 and a PSU with at least 400 Watts for the GTX 650. The HD 6950 has been recommended a PSU with 100 Watts more than the GTX 650. The difference is significant enough that the HD 6950 may have an adverse affect on your yearly electricity bills in comparison to the GTX 650.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed800 MHzvs1110 MHz
Boost Clock-vs-
ArchitectureTerascale 3 Cayman ProKepler GK107-450-A2
OC Potential Fair vs Poor
Driver Support Poor vs Good
Release Date01 Dec 2010vs01 Sep 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs -
1600x900
8.2
green tick vs
5.9
1920x1080
6.4
green tick vs
4.9
2560x1440
4.7
green tick vs
3.1
3840x2160 - vs green tick
2.1

GPU Memory

Memory2048 MBvs1024 MB
Memory Speed1250 MHzvs1250 MHz
Memory Bus256 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth160GB/secvs80GB/sec
L2 Cache 512 KB green tick vs 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1408vs384
Actual Shader Performance27%vs21%
Technology40nmvs28nm
Texture Mapping Units88vs32
Texture Rate70.4 GTexel/svs35.5 GTexel/s
Render Output Units32vs16
Pixel Rate25.6 GPixel/svs17.8 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs1
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power200 Watts-
Recommended PSU500 Watts & 30 Ampsvs400 Watts & 33 Amps

GPU Features

DirectX11.0vs12.0
Shader Model5.0vs5.0
Open GL4.3vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-930 Quad 2.80GHzvsIntel Core i3-3220 3.3GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 6950 PowerColor 2GB Edition is a special editon of the high-end Radeon HD 6950.
The only new feature is a new Cooling System. Therefore, Radeon HD 6950 PowerColor 2GB Edition delivers the same performance the reference Radeon HD 6950 does.
GeForce GTX 650 Gigabyte OC 1GB Edition is a special edition of the fast-middle-class GeForce GTX 650 1GB.
This special edition comes overclocked out of the box to 1110MHz and features a custom-designed 10 cm cooler.
Benchmarks indicate a 4% performance boost when compared to the reference card and so this GPU is suitable for medium to high settings on most demanding games but not with extreme resolutions.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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