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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 580 Galaxy Edition GeForce GTX 660 Zotac AMP Edition
Halo: Reach 37% 35%
Cyberpunk 2077 172% 183%
Red Dead Redemption 2 98% 106%
Dragon Ball Z Kakarot 22% 27%
Call of Duty: Modern Warfare 98% 106%
Microsoft Flight Simulator 172% 183%
Doom Eternal 70% 77%
Grand Theft Auto VI 203% 215%
FIFA 20 6% 10%
Need For Speed Heat 98% 106%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 580 Galaxy Edition are marginally better than the Nvidia GeForce GTX 660 Zotac AMP Edition.

The GTX 660 has a 274 MHz higher core clock speed and 16 more Texture Mapping Units than the GTX 580. This results in the GTX 660 providing 34.3 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 660 has a 274 MHz higher core clock speed than the GTX 580, but the GTX 580 has 24 more Render Output Units than the GTX 660. As a result, the GTX 580 exhibits a 12 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 a year more recently than the GTX 580, and so the GTX 660 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 580.

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 660 has 512 MB more video memory than the GTX 580, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The GTX 580 has 33.8 GB/sec greater memory bandwidth than the GTX 660, which means that the memory performance of the GTX 580 is noticeably better than the GTX 660.

The GeForce GTX 580 Galaxy Edition has 512 Shader Processing Units and the GeForce GTX 660 Zotac AMP Edition has 960. However, the actual shader performance of the GTX 580 is 791 and the actual shader performance of the GTX 660 is 1067. The GTX 660 having 276 better shader performance is not particularly notable, as altogether the GTX 580 performs better when taking into account other relevant data.

The GTX 660 transistor size technology is 12 nm (nanometers) smaller than the GTX 580. This means that the GTX 660 is expected to run slightly cooler and achieve higher clock frequencies than the GTX 580.

We would recommend a PSU with at least 600 Watts for the GTX 580.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed772 MHzvs1046 MHz
Boost Clock-vs1111 MHz
ArchitectureFermi GF110-375-A1Kepler GK106-400-A1
OC Potential - vs Poor
Driver Support Poor vs Good
Release Date01 Nov 2010vs01 Sep 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
9.3
green tick vs
9.1
1920x1080
7.3
green tick vs
7.2
2560x1440
5.3
green tick vs
5.2
3840x2160 - vs green tick
3.5

GPU Memory

Memory1536 MBvs2048 MB
Memory Speed1002 MHzvs1652 MHz
Memory Bus384 Bitvs192 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth192.4GB/secvs158.6GB/sec
L2 Cache 768 KB green tick vs 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units512vs960
Actual Shader Performance38%vs51%
Technology40nmvs28nm
Texture Mapping Units64vs80
Texture Rate49.4 GTexel/svs83.7 GTexel/s
Render Output Units48vs24
Pixel Rate37.1 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 Power--
Recommended PSU600 Watts & 42 Amps-

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-880 Quad 3.06GHzvsIntel Core i5-3470 3.2GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 580 Galaxy Edition is a special edition of the high-end GeForce GTX 580 that has no new features and offers similar performance when compared to any other regular GeForce GTX 580.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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