Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 660 EVGA SC Signature 2 Edition SLI GeForce GTX 660 Zotac AMP Edition
Red Dead Redemption 2 19% 106%
Doom Eternal 2% 77%
Cyberpunk 2077 63% 183%
Call of Duty: Modern Warfare 19% 106%
Dragon Ball Z Kakarot 27% 27%
Microsoft Flight Simulator 63% 183%
Star Wars: Jedi - Fallen Order 63% 183%
Grand Theft Auto VI 81% 215%
Need For Speed Heat 19% 106%
Warcraft 3: Reforged 95% 92%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 EVGA SC Signature 2 Edition SLI are significantly better than the Nvidia GeForce GTX 660 Zotac AMP Edition.

The GTX 660 and the GTX 660 have the same core clock speed of 1046 MHz, but the GTX 660 has 80 more Texture Mapping Units than the GTX 660. As a result, the GTX 660 exhibits a 83.7 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 and the GTX 660 have the same core clock speed of 1046 MHz, but the GTX 660 has 24 more Render Output Units than the GTX 660. As a result, the GTX 660 exhibits a 25.1 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.

Both the GeForce GTX 660 EVGA SC Signature 2 Edition SLI and the GeForce GTX 660 Zotac AMP Edition were released at the same time, so are likely to be quite similar.

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 4096 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 660 also has superior memory performance overall.

The GTX 660 has 129.8 GB/sec greater memory bandwidth than the GTX 660, which means that the memory performance of the GTX 660 is massively better than the GTX 660.

The GeForce GTX 660 EVGA SC Signature 2 Edition SLI has 1920 Shader Processing Units and the GeForce GTX 660 Zotac AMP Edition has 960. However, the actual shader performance of the GTX 660 is 2133 and the actual shader performance of the GTX 660 is 1067. The GTX 660 having 1066 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 660 delivers a massively smoother and more efficient experience when processing graphical data than the GTX 660.

The GeForce GTX 660 EVGA SC Signature 2 Edition SLI requires 280 Watts to run but there is no entry for the GeForce GTX 660 Zotac AMP Edition. We would recommend a PSU with at least 600 Watts for the GTX 660.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1046 MHzvs1046 MHz
Boost Clock1111 MHzvs1111 MHz
ArchitectureKepler GK106-400-A1Kepler GK106-400-A1
OC Potential Poor vs Poor
Driver Support Good vs Good
Release Date01 Sep 2012vs01 Sep 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - vs green tick
9.1
1920x1080
9.4
green tick vs
7.2
2560x1440 - vs green tick
5.2
3840x2160 - vs green tick
3.5

GPU Memory

Memory6144 MBvs2048 MB
Memory Speed1502 MHzvs1652 MHz
Memory Bus384 Bitvs192 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth288.4GB/secvs158.6GB/sec
L2 Cache 384 KB green tick 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 Units1920vs960
Actual Shader Performance100%vs51%
Technology28nmvs28nm
Texture Mapping Units160vs80
Texture Rate167.4 GTexel/svs83.7 GTexel/s
Render Output Units48vs24
Pixel Rate50.2 GPixel/svs25.1 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power280 Watts-
Recommended PSU600 Watts & 29 Amps-

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3570K 3.4GHzvsIntel Core i5-3470 3.2GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1440vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewThe SLI setup of GeForce GTX 660 EVGA SC Signature 2 Edition.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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