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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 980 4GB SLI Radeon HD 7950 3-way Crossfire
Cyberpunk 2077 31% 6%
Assassins Creed: Valhalla 36% 13%
Genshin Impact 30% 5%
Call of Duty: Black Ops Cold War 29% 3%
eFootball PES 2021 65% 52%
FIFA 21 65% 52%
Marvel's Avengers 34% 10%
Watch Dogs Legion 33% 8%
Mafia: Definitive Edition 0% 36%
Microsoft Flight Simulator 38% 16%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 980 4GB SLI are significantly better than the AMD Radeon HD 7950 3-way Crossfire.

The GTX 980 has a 326 MHz higher core clock speed but 80 fewer Texture Mapping Units than the HD 7950. The lower TMU count doesn't matter, though, as altogether the GTX 980 manages to provide 19.5 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 326 MHz higher core clock speed and 32 more Render Output Units than the HD 7950. This results in the GTX 980 providing 67.3 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 a year more recently than the HD 7950, and so the GTX 980 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 GTX 980, 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 271.2 GB/sec greater memory bandwidth than the GTX 980, which means that the memory performance of the HD 7950 is massively better than the GTX 980.

The GeForce GTX 980 4GB SLI has 4096 Shader Processing Units and the Radeon HD 7950 3-way Crossfire has 5376. However, the actual shader performance of the GTX 980 is 6724 and the actual shader performance of the HD 7950 is 3656. The GTX 980 having 3068 better shader performance is not particularly notable, as altogether the HD 7950 performs better when taking into account other relevant data.

The GeForce GTX 980 4GB SLI requires 350 Watts to run and the Radeon HD 7950 3-way Crossfire requires 540 Watts. We would recommend a PSU with at least 750 Watts for the GTX 980. The HD 7950 requires 190 Watts more than the GTX 980 to run. The difference is significant enough that the HD 7950 may have an adverse affect on your yearly electricity bills in comparison to the GTX 980.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1126 MHzvs800 MHz
Boost Clock1216 MHzvs-
ArchitectureMaxwell GM204-400-A1 (x2)GCN 1.0 Tahiti PRO (x3)
OC Potential Fair vs Fair
Driver Support Great vs Good
Release Date19 Sep 2014vs01 Jan 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

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

GPU Memory

Memory8192 MBvs9216 MB
Memory Speed1753 MHzvs1250 MHz
Memory Bus512 Bitvs1152 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth448.8GB/secvs720GB/sec
L2 Cache 4096 KB green tick vs 2304 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units4096vs5376
Actual Shader Performance100%vs100%
Technology28nmvs28nm
Texture Mapping Units256vs336
Texture Rate288.3 GTexel/svs268.8 GTexel/s
Render Output Units128vs96
Pixel Rate144.1 GPixel/svs76.8 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power350 Wattsvs540 Watts
Recommended PSU750 Watts & 42 Amps-

GPU Features

DirectX12.1vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-5820K 6-Core 3.3GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM16 GBvs8 GB
Maximum Recommended Gaming Resolution5760x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
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.
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
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GPU Variants
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