Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 285 SLI GeForce GTX 660 Zotac AMP Edition
Red Dead Redemption 2 95% 106%
Doom Eternal 67% 77%
Cyberpunk 2077 167% 183%
Call of Duty: Modern Warfare 95% 106%
Dragon Ball Z Kakarot 20% 27%
Microsoft Flight Simulator 167% 183%
Star Wars: Jedi - Fallen Order 167% 183%
Grand Theft Auto VI 197% 215%
Need For Speed Heat 95% 106%
Warcraft 3: Reforged 93% 92%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 285 SLI 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 285, but the GTX 285 has 80 more Texture Mapping Units than the GTX 660. As a result, the GTX 285 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 285, but the GTX 285 has 40 more Render Output Units than the GTX 660. As a result, the GTX 285 exhibits a 16.4 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 285, 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 285 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 GeForce GTX 285 SLI and the GeForce GTX 660 Zotac AMP Edition have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GTX 285 has 159.4 GB/sec greater memory bandwidth than the GTX 660, which means that the memory performance of the GTX 285 is massively better than the GTX 660.

The GeForce GTX 285 SLI has 480 Shader Processing Units and the GeForce GTX 660 Zotac AMP Edition has 960. However, the actual shader performance of the GTX 285 is 311 and the actual shader performance of the GTX 660 is 1067. The GTX 660 having 756 better shader performance is not particularly notable, as altogether the GTX 285 performs better when taking into account other relevant data.

The GTX 660 transistor size technology is 27 nm (nanometers) smaller than the GTX 285. This means that the GTX 660 is expected to run slightly cooler and achieve higher clock frequencies than the GTX 285.

The GeForce GTX 285 SLI requires 408 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 285.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed648 MHzvs1046 MHz
Boost Clock-vs1111 MHz
ArchitectureTesla GT200 B3 (x2)Kepler GK106-400-A1
OC Potential Poor vs Poor
Driver Support - vs Good
Release Date01 Dec 2008vs01 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
7.4
green tick vs
7.2
2560x1440
5.3
green tick vs
5.2
3840x2160
3.9
green tick vs
3.5

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1242 MHzvs1652 MHz
Memory Bus1024 Bitvs192 Bit
Memory TypeGDDR3vsGDDR5
Memory Bandwidth318GB/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 Performance15%vs51%
Technology55nmvs28nm
Texture Mapping Units160vs80
Texture Rate103.7 GTexel/svs83.7 GTexel/s
Render Output Units64vs24
Pixel Rate41.5 GPixel/svs25.1 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections4vs2
HDMI Connections0vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power408 Watts-
Recommended PSU750 Watts & 55 Amps-

GPU Features

DirectX10vs12.0
Shader Model4.0vs5.0
Open GL2.1vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core 2 Quad Q9650 3.0GHzvsIntel Core i5-3470 3.2GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 285 SLI is a solution of two GeForce GTX 285 put together using NVIDIA'S SLI technology.
SLI relies a lot on proper driver support and may cause micro stuttering in FPS below 30. This means this combination might even perform worse than a single GTX 285.
The optimal performance it delivers is largely better than a single GeForce GTX 295.
Therefore, this combination is sufficient for gaming at 1080p and most demanding games can be played at the highest settings.
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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