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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 295 Asus Mars ROG 4GB Edition GeForce GTX 980 4GB SLI
Cyberpunk 2077 103% 31%
Watch Dogs Legion 97% 33%
Assassins Creed: Valhalla 87% 36%
Call of Duty: Black Ops Cold War 81% 38%
Genshin Impact 105% 30%
FIFA 21 3% 65%
Microsoft Flight Simulator 81% 38%
eFootball PES 2021 3% 65%
Ghostrunner 81% 38%
Horizon: Zero Dawn 94% 34%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 980 4GB SLI are massively better than the Nvidia GeForce GTX 295 Asus Mars ROG 4GB Edition.

The GTX 980 has a 478 MHz higher core clock speed and 96 more Texture Mapping Units than the GTX 295. This results in the GTX 980 providing 184.6 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 478 MHz higher core clock speed and 72 more Render Output Units than the GTX 295. This results in the GTX 980 providing 107.8 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 GTX 295, 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 GTX 295 when running the latest games.

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 GTX 980 has 4096 MB more video memory than the GTX 295, 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 167.2 GB/sec greater memory bandwidth than the GTX 295, which means that the memory performance of the GTX 980 is massively better than the GTX 295.

The GeForce GTX 295 Asus Mars ROG 4GB Edition has 480 Shader Processing Units and the GeForce GTX 980 4GB SLI has 4096. However, the actual shader performance of the GTX 295 is 715 and the actual shader performance of the GTX 980 is 6724. The GTX 980 having 6009 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 GTX 295.

The GTX 980 transistor size technology is 27 nm (nanometers) smaller than the GTX 295. This means that the GTX 980 is expected to run slightly cooler and achieve higher clock frequencies than the GTX 295.

The GeForce GTX 295 Asus Mars ROG 4GB Edition requires 500 Watts to run and the GeForce GTX 980 4GB SLI requires 350 Watts. We would recommend a PSU with at least 750 Watts for the GTX 295 and a PSU with at least 750 Watts for the GTX 980. The GTX 295 requires 150 Watts more than the GTX 980 to run. The difference is significant enough that the GTX 295 may have an adverse affect on your yearly electricity bills in comparison to the GTX 980.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed648 MHzvs1126 MHz
Boost Clock-vs1216 MHz
ArchitectureTesla G200-400-B3 (x2)Maxwell GM204-400-A1 (x2)
OC Potential None vs Fair
Driver Support Poor vs Great
Release Date17 Jun 2009vs19 Sep 2014
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
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vs green tick
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GPU Memory

Memory4096 MBvs8192 MB
Memory Speed1100 MHzvs1753 MHz
Memory Bus1024 Bitvs512 Bit
Memory TypeGDDR3vsGDDR5
Memory Bandwidth281.6GB/secvs448.8GB/sec
L2 Cache 0 KB vs green tick 4096 KB
Delta Color Compression no vs yes
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units480vs4096
Actual Shader Performance34%vs100%
Texture Mapping Units160vs256
Texture Rate103.7 GTexel/svs288.3 GTexel/s
Render Output Units56vs128
Pixel Rate36.3 GPixel/svs144.1 GPixel/s

GPU Outputs

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

GPU Power Requirements

Max Power500 Wattsvs350 Watts
Recommended PSU750 Watts & 55 Ampsvs750 Watts & 42 Amps

GPU Features

Shader Model4.0vs5.0
Open GL3.3vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-960 Quad 3.2GHzvsIntel 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
GeForce GTX 295 Asus Mars ROG 4GB Edition is a special edition of NVIDIA's Dual Graphics GeForce GTX 295, created by Asus.

Overclock: Central Unit
The Central Unit now runs at 648MHz, instead 576MHz.

Overclock: Memory Clock
The Operating Memory Clock runs at 1100MHz while the Frame Buffer is now of 4GB. This is a gimmick and in no way benefits the GPU. Furthermore, the GPU now accesses a 1024-bit bus width.

Cooling Solution
The Cooling System remains the same.

Benchmarks indicate a 20% performance boost over the reference GeForce GTX 295.
GeForce GTX 980 4GB SLI is a solution of two GeForce GTX 980 4GB put together using NVIDIA's SLI technology.

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.

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.

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
GPU Variants