Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce 6600 GT GeForce 7800 GS
Cyberpunk 2077 4709% 3129%
Assassins Creed: Valhalla 4298% 2853%
Call of Duty: Black Ops Cold War 4155% 2757%
Watch Dogs Legion 4538% 3014%
FIFA 21 2326% 1529%
Microsoft Flight Simulator 4155% 2757%
Godfall 7709% 5143%
Grand Theft Auto VI 6666% 4443%
World of Warcraft: Shadowlands 6794% 4529%
Genshin Impact 4709% 3129%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 7800 GS are significantly better than the Nvidia GeForce 6600 GT.

The GeForce 7800 GS was released over a year more recently than the GeForce 6600 GT, and so the GeForce 7800 GS is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce 6600 GT.

Both GPUs exhibit very poor performance, so rather than upgrading from one to the other you should consider looking at more powerful GPUs. Neither of these will be able to run the latest games in any playable way.

The GeForce 7800 GS has 128 MB more video memory than the GeForce 6600 GT, so is likely to be slightly better at displaying game textures at higher resolutions. This is supported by the fact that the GeForce 7800 GS also has superior memory performance overall.

The GeForce 7800 GS has 23.2 GB/sec greater memory bandwidth than the GeForce 6600 GT, which means that the memory performance of the GeForce 7800 GS is slightly better than the GeForce 6600 GT.

The GeForce 6600 GT has 11 Shader Processing Units and the GeForce 7800 GS has 16. The two GPUs are based on different architectures, but deliver an equivalent shader performance. To compare, we must continue to look at the memory bandwidth, Texture and Pixel Rates. In this case, we sadly do not have enough data in this area to complete the comparison.

The GeForce 6600 GT requires 48 Watts to run and the GeForce 7800 GS requires 49 Watts. We would recommend a PSU with at least 400 Watts for the GeForce 7800 GS, but we do not have a recommended PSU wattage for the GeForce 6600 GT. The GeForce 7800 GS requires 1 Watts more than the GeForce 6600 GT to run. The difference is not significant enough for the GeForce 7800 GS to have a noticeably larger impact on your yearly electricity bills than the GeForce 6600 GT.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed500 MHzvs375 MHz
Boost Clock-vs-
OC Potential - vs -
Driver Support - vs -
Release Date01 Nov 2004vs01 Feb 2006
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - green tick vs green tick -
1920x1080 - green tick vs green tick -
2560x1440 - green tick vs green tick -
3840x2160 - vs green tick

GPU Memory

Memory128 MBvs256 MB
Memory Speed475 MHzvs600 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeGDDR3vsGDDR3
Memory Bandwidth15.2GB/secvs38.4GB/sec
L2 Cache - vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units11vs16
Actual Shader Performance0%vs0%
Texture Mapping Units-vs-
Texture Rate-vs-
Render Output Units-vs-
Pixel Rate-vs-

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections1vs1
DVI Connections1vs1
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power48 Wattsvs49 Watts
Recommended PSU-400 Watts & 20 Amps

GPU Features

Shader Model3.0vs3.0
Open GL1.5vs2.0
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended Processor--
Recommended RAM--
Maximum Recommended Gaming Resolution--

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewSupercharge your gaming with the power of an NVIDIA GeForce 6600 GPU. The NVIDIA GeForce 6600 GPUs deliver best-in-class performance and advanced visual effects for next-generation games. The only GPU in its class with support for Microsoft DirectX 9.0 Shader Model 3.0 and with support for PCI Express, the GeForce 6600 delivers ultra-realistic effects, unmatched features, and rock-solid stability so you can play your game the way itís meant to be played. The NVIDIA GeForce 7 Series graphics processing units (GPUs) represent a significant leap forward in 3D graphics design, delivering the unparalleled horsepower and revolutionary technologies you need to tackle the latest games and video applications. The GeForce 7 Series GPUs deliver blazing frame rates and outstanding image quality so you can experience full-throttle graphics performance.
Recommended CPU
Possible GPU Upgrades
GPU Variants