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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 295 Asus Mars ROG 4GB Edition GeForce GTX 660 Zotac AMP Edition
Cyberpunk 2077 166% 183%
Red Dead Redemption 2 94% 106%
Dragon Ball Z Kakarot 20% 27%
Halo: Reach 38% 35%
Microsoft Flight Simulator 166% 183%
Call of Duty: Modern Warfare 94% 106%
FIFA 20 3% 10%
Doom Eternal 67% 77%
Grand Theft Auto VI 196% 215%
Need For Speed Heat 94% 106%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 295 Asus Mars ROG 4GB Edition are very slightly better than the Nvidia GeForce GTX 660 Zotac AMP Edition.

The GTX 660 has a 398 MHz higher core clock speed than the GTX 295, but the GTX 295 has 80 more Texture Mapping Units than the GTX 660. As a result, the GTX 295 exhibits a 20 GTexel/s better Texture Fill Rate than the GTX 660. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 660 has a 398 MHz higher core clock speed than the GTX 295, but the GTX 295 has 32 more Render Output Units than the GTX 660. As a result, the GTX 295 exhibits a 11.2 GPixel/s better Pixel Fill Rate than the GTX 660. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 660 was released over three years more recently than the GTX 295, and so the GTX 660 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 295 has 2048 MB more video memory than the GTX 660, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 295 also has superior memory performance overall.

The GTX 295 has 123 GB/sec greater memory bandwidth than the GTX 660, which means that the memory performance of the GTX 295 is massively better than the GTX 660.

The GeForce GTX 295 Asus Mars ROG 4GB Edition has 480 Shader Processing Units and the GeForce GTX 660 Zotac AMP Edition has 960. However, the actual shader performance of the GTX 295 is 715 and the actual shader performance of the GTX 660 is 1067. The GTX 660 having 352 better shader performance is not particularly notable, as altogether the GTX 295 performs better when taking into account other relevant data.

The GTX 660 transistor size technology is 27 nm (nanometers) smaller than the GTX 295. This means that the GTX 660 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 but there is no entry for the GeForce GTX 660 Zotac AMP Edition. We would recommend a PSU with at least 750 Watts for the GTX 295.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed648 MHzvs1046 MHz
Boost Clock-vs1111 MHz
ArchitectureTesla G200-400-B3 (x2)Kepler GK106-400-A1
OC Potential None vs Poor
Driver Support Poor vs Good
Release Date17 Jun 2009vs01 Sep 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs -
1600x900
9.2
green tick vs
9.1
1920x1080
7.4
green tick vs
7.2
2560x1440
5.5
green tick vs
5.2
3840x2160
4.1
green tick vs
3.5

GPU Memory

Memory4096 MBvs2048 MB
Memory Speed1100 MHzvs1652 MHz
Memory Bus1024 Bitvs192 Bit
Memory TypeGDDR3vsGDDR5
Memory Bandwidth281.6GB/secvs158.6GB/sec
L2 Cache 0 KB vs green tick 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units480vs960
Actual Shader Performance34%vs51%
Technology55nmvs28nm
Texture Mapping Units160vs80
Texture Rate103.7 GTexel/svs83.7 GTexel/s
Render Output Units56vs24
Pixel Rate36.3 GPixel/svs25.1 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power500 Watts-
Recommended PSU750 Watts & 55 Amps-

GPU Features

DirectX10.0vs12.0
Shader Model4.0vs5.0
Open GL3.3vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-960 Quad 3.2GHzvsIntel Core i5-3470 3.2GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

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.

Performance
Benchmarks indicate a 20% performance boost over the reference GeForce GTX 295.
GeForce GTX 660 Zotac AMP Edition a special edition of GeForce GTX 660.
The new features include a new cooling system and in terms of overclocking, the base-clock was increased from 980MHz to 1046MHz and the boost clock can now reach 1111MHz, instead of 1033MHz. The memory clock was raised to 1652MHz.
Benchmarks indicate a 5.5% performance when compared to the reference card.
Recommended CPU
Possible GPU Upgrades
GPU Variants
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