Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 6950 Gigabyte WindForce 3X OC 1GB Edition GeForce GTX 980 4GB SLI
Cyberpunk 2077 159% 31%
Assassins Creed: Valhalla 139% 36%
Call of Duty: Black Ops Cold War 166% 29%
Mafia: Definitive Edition 275% 0%
Genshin Impact 162% 30%
eFootball PES 2021 32% 65%
FIFA 21 32% 65%
Watch Dogs Legion 153% 33%
Death Stranding 162% 30%
Microsoft Flight Simulator 132% 38%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 980 4GB SLI are massively better than the AMD Radeon HD 6950 Gigabyte WindForce 3X OC 1GB Edition.

The GTX 980 has a 256 MHz higher core clock speed and 168 more Texture Mapping Units than the HD 6950. This results in the GTX 980 providing 211.7 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 GTX 980 has a 256 MHz higher core clock speed and 96 more Render Output Units than the HD 6950. This results in the GTX 980 providing 116.3 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 GTX 980 was released over three years more recently than the HD 6950, and so the GTX 980 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the HD 6950 when running the latest games.

The GTX 980 has 7168 MB more video memory than the HD 6950, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 980 also has superior memory performance overall.

The GTX 980 has 288.8 GB/sec greater memory bandwidth than the HD 6950, which means that the memory performance of the GTX 980 is massively better than the HD 6950.

The Radeon HD 6950 Gigabyte WindForce 3X OC 1GB Edition has 1408 Shader Processing Units and the GeForce GTX 980 4GB SLI has 4096. However, the actual shader performance of the HD 6950 is 612 and the actual shader performance of the GTX 980 is 6724. The GTX 980 having 6112 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 980 delivers a massively smoother and more efficient experience when processing graphical data than the HD 6950.

The GTX 980 transistor size technology is 12 nm (nanometers) smaller than the HD 6950. This means that the GTX 980 is expected to run slightly cooler and achieve higher clock frequencies than the HD 6950.

The Radeon HD 6950 Gigabyte WindForce 3X OC 1GB Edition requires 200 Watts to run and the GeForce GTX 980 4GB SLI requires 350 Watts. We would recommend a PSU with at least 500 Watts for the HD 6950 and a PSU with at least 750 Watts for the GTX 980. The GTX 980 requires 150 Watts more than the HD 6950 to run. The difference is significant enough that the GTX 980 may have an adverse affect on your yearly electricity bills in comparison to the HD 6950.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed870 MHzvs1126 MHz
Boost Clock-vs1216 MHz
ArchitectureTerascale 3 Cayman ProMaxwell GM204-400-A1 (x2)
OC Potential Poor vs Fair
Driver Support Poor vs Great
Release Date20 Dec 2010vs19 Sep 2014
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs -
1600x900
8.3
vs green tick
10
1920x1080
6.5
vs green tick
10
2560x1440
4.8
vs green tick
9.9
3840x2160 - vs green tick
7.8

GPU Memory

Memory1024 MBvs8192 MB
Memory Speed1250 MHzvs1753 MHz
Memory Bus256 Bitvs512 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth160GB/secvs448.8GB/sec
L2 Cache 512 KB vs green tick 4096 KB
Delta Color Compression no vs yes
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1408vs4096
Actual Shader Performance29%vs100%
Technology40nmvs28nm
Texture Mapping Units88vs256
Texture Rate76.6 GTexel/svs288.3 GTexel/s
Render Output Units32vs128
Pixel Rate27.8 GPixel/svs144.1 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections2vs1
HDMI Connections1vs1
DisplayPort Connections1vs-
Comparison

GPU Power Requirements

Max Power200 Wattsvs350 Watts
Recommended PSU500 Watts & 33 Ampsvs750 Watts & 42 Amps

GPU Features

DirectX11.0vs12.1
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 i7-5820K 6-Core 3.3GHz
Recommended RAM8 GBvs16 GB
Maximum Recommended Gaming Resolution1920x1080vs5760x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 6950 Gigabyte WindForce 3X OC 1GB Edition is a Special Edition of AMD's High-End Radeon HD 6950, created by Gigabyte.

Overclock: Central Unit
The Central Unit is now of 870MHz, instead of 800MHz.

Overclock: Memory Clock
None.

Frame Buffer
Untouched.

Cooling Solution
WindForce 3X - Vapor chamber-Outward Inclined Fan: Features 3 ultra quiet PWM fans, three copper heat pipes and a unique vapor chamber to strengthen the speed of heat dissipation.

Performance
Benchmarks Indicate a 4% Performance Boost over the Reference Radeon HD 6950.
Overview
GeForce GTX 980 4GB SLI is a solution of two GeForce GTX 980 4GB put together using NVIDIA's SLI technology.

Architecture
The Second variant of the Maxwell Architecture, despite being also manufactured with a 28nm technology, has an extremely large L2 Cache and features a Third Generation Delta Color Compression which allows NVIDIA to produce Graphics Cards with relatively small memory data transfer rates, without causing too much impact on the overall performance. Furthermore, the Shaders have been redesigned and are both more powerful and energy efficient.

GPU
It consists of 2 GPUs codenamed GM204-400-A1 which, together, offer 4096 Shader Processing Units, 256 TMUs and 128 ROPs, on a 512-bit memory interface of fast GDDR5. The central unit runs at 1126MHz and goes up to 1216MHz, in Turbo Mode, while the memory clock operates at 1753MHz.

Power Consumption
Power Consumption lies between 300W and 400W.

Performance
Gaming benchmarks prove that at 4K (3840x2160) GeForce GTX 980 4GB SLI is over 7% faster than AMD's Radeon R9 295X2.

System Suggestions
We recommend a very strong processor (Intel Core i7 Six Core/AMD FX Eight Core) and 16GB of RAM for a system with GeForce GTX 980 4GB SLI.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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