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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 650 Gigabyte OC 1GB Edition Radeon HD 6950 Sapphire 1GB Edition
Cyberpunk 2077 372% 172%
Assassins Creed: Valhalla 332% 149%
Call of Duty: Black Ops Cold War 318% 141%
FIFA 21 138% 37%
Microsoft Flight Simulator 318% 141%
Watch Dogs Legion 356% 163%
World of Warcraft: Shadowlands 577% 290%
Grand Theft Auto VI 565% 283%
Genshin Impact 372% 172%
Horizon: Zero Dawn 347% 158%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 6950 Sapphire 1GB 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 less than a year after the HD 6950, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GTX 650 Gigabyte OC 1GB Edition and the Radeon HD 6950 Sapphire 1GB Edition have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

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 GeForce GTX 650 Gigabyte OC 1GB Edition has 384 Shader Processing Units and the Radeon HD 6950 Sapphire 1GB Edition has 1408. However, the actual shader performance of the GTX 650 is 426 and the actual shader performance of the HD 6950 is 563. 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.

We would recommend a PSU with at least 400 Watts for the GTX 650 and a PSU with at least 500 Watts for the HD 6950. 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 Speed1110 MHzvs800 MHz
Boost Clock-vs-
ArchitectureKepler GK107-450-A2Terascale 3 Cayman Pro
OC Potential Poor vs Fair
Driver Support Good vs Poor
Release Date01 Sep 2012vs01 Oct 2011
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

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

GPU Memory

Memory1024 MBvs1024 MB
Memory Speed1250 MHzvs1250 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth80GB/secvs160GB/sec
L2 Cache 256 KB vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs1408
Actual Shader Performance21%vs27%
Technology28nmvs40nm
Texture Mapping Units32vs88
Texture Rate35.5 GTexel/svs70.4 GTexel/s
Render Output Units16vs32
Pixel Rate17.8 GPixel/svs25.6 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections1vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power--
Recommended PSU400 Watts & 33 Ampsvs500 Watts

GPU Features

DirectX12.0vs11.0
Shader Model5.0vs5.0
Open GL4.5vs4.3
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHzvsIntel Core i7-930 Quad 2.80GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce 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.
Radeon HD 6950 Sapphire 1GB Edition is a special edition of Radeon HD 6950 that features a special cooler using a new dual fan configuration. However, its frame buffer is halved to 1GB and so its performance is worse than the reference card since it's known this GPU benefits from a 2GB frame buffer.
Benchmarks indicate its performance is overall 2% worse than the reference card.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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