Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 660 Twin Frozr OC Edition SLI FirePro S9150
Cyberpunk 2077 28% 62%
Hitman 3 66% 111%
Assassins Creed: Valhalla 17% 48%
The Medium 59% 103%
Resident Evil 8 28% 62%
FIFA 21 36% 18%
Call of Duty: Black Ops Cold War 13% 44%
Grand Theft Auto VI 80% 128%
Genshin Impact 28% 62%
Far Cry 6 85% 135%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 Twin Frozr OC Edition SLI are noticeably better than the AMD FirePro S9150.

The GTX 660 has a 133 MHz higher core clock speed but 16 fewer Texture Mapping Units than the FirePro S9150. The lower TMU count doesn't matter, though, as altogether the GTX 660 manages to provide 6.9 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 133 MHz higher core clock speed than the FirePro S9150, but the FirePro S9150 has 16 more Render Output Units than the GTX 660. As a result, the FirePro S9150 exhibits a 8 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 FirePro S9150 was released over a year more recently than the GTX 660, and so the FirePro S9150 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 660.

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 FirePro S9150 has 12288 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 FirePro S9150 also has superior memory performance overall.

The FirePro S9150 has 31.6 GB/sec greater memory bandwidth than the GTX 660, which means that the memory performance of the FirePro S9150 is noticeably better than the GTX 660.

The GeForce GTX 660 Twin Frozr OC Edition SLI has 1920 Shader Processing Units and the FirePro S9150 has 2816. However, the actual shader performance of the GTX 660 is 2108 and the actual shader performance of the FirePro S9150 is 2534. The FirePro S9150 having 426 better shader performance is not particularly notable, as altogether the GTX 660 performs better when taking into account other relevant data.

The FirePro S9150 requires 235 Watts to run but there is no entry for the GTX 660.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1033 MHzvs900 MHz
Boost Clock1098 MHzvs-
ArchitectureKepler GK106-400-A1 (x2)GCN 2.0 Hawaii XT GL
OC Potential Poor vs Good
Driver Support Good vs -
Release Date01 Sep 2012vs01 Aug 2014
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - green tick vs green tick -
green tick vs -
2560x1440 - green tick vs green tick -
3840x2160 - green tick vs green tick -

GPU Memory

Memory4096 MBvs16384 MB
Memory Speed1502 MHzvs1250 MHz
Memory Bus384 Bitvs512 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth288.4GB/secvs320GB/sec
L2 Cache 768 KB vs green tick 1024 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units1920vs2816
Actual Shader Performance100%vs100%
Texture Mapping Units160vs176
Texture Rate165.3 GTexel/svs158.4 GTexel/s
Render Output Units48vs64
Pixel Rate49.6 GPixel/svs57.6 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs0
HDMI Connections1vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power-235 Watts
Recommended PSU--

GPU Features

Shader Model5.0vs5.0
Open GL4.5vs4.2
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3470 3.2GHzvsIntel Xeon E7-8890 v2
Recommended RAM8 GBvs16 GB
Maximum Recommended Gaming Resolution1920x1080vs5760x1600

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewThe SLI setup of GeForce GTX 660 Twin Frozr OC Edition.FirePro S9150 is a server GPU based on the 28nm GCN architecture.

It's based on the Hawaii XT Core (same used on Radeon R9 290X) and therefore offers 2816 Shader Processing Units, 176 TMUs and 64 ROPs on a 512-bit interface of fast GDDR5. The central unit is clocked 900MHz while the memory clock operates at 1250MHZ.

Compared to Radeon R9 290X, its central unit is slightly lower and overall its gaming performance is lower than Radeon R9 290X because the latter benefits from certified gaming drivers which unlock the GCN's architecture potential while FirePro S9150 is made for professional applications. Therefore, expect its performance to be between 10% and 15% worse than Radeon R9 290X.
Recommended CPU
Possible GPU Upgrades
GPU Variants