Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce FX 5900XT GeForce 6600 GT
Cyberpunk 2077 4709% 4709%
Assassins Creed: Valhalla 4298% 4298%
Call of Duty: Black Ops Cold War 4155% 4155%
Microsoft Flight Simulator 4155% 4155%
FIFA 21 2326% 2326%
Immortals: Fenyx Rising 3815% 3815%
Genshin Impact 4709% 4709%
Grand Theft Auto VI 6666% 6666%
World of Warcraft: Shadowlands 6794% 6794%
Watch Dogs Legion 4538% 4538%

In terms of overall gaming performance, the graphical capabilities of the GeForce FX 5900XT and the GeForce 6600 GT are equal.

The GeForce 6600 GT was released less than a year after the GeForce FX 5900XT, and so they are likely to have similar driver support for optimizing performance when running the latest games.

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 FX 5900XT and the GeForce 6600 GT have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GeForce 6600 GT has 4 GB/sec greater memory bandwidth than the GeForce FX 5900XT, which means that the memory performance of the GeForce 6600 GT is marginally better than the GeForce FX 5900XT.

The GeForce FX 5900XT has 4 Shader Processing Units and the GeForce 6600 GT has 11. However, the actual shader performance of the GeForce FX 5900XT is 2 and the actual shader performance of the GeForce 6600 GT is 6. The GeForce 6600 GT having 4 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce 6600 GT delivers a marginally smoother and more efficient experience when processing graphical data than the GeForce FX 5900XT.

The GeForce FX 5900XT requires 35 Watts to run and the GeForce 6600 GT requires 48 Watts. The GeForce 6600 GT requires 13 Watts more than the GeForce FX 5900XT to run. The difference is not significant enough for the GeForce 6600 GT to have a noticeably larger impact on your yearly electricity bills than the GeForce FX 5900XT.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed400 MHzvs500 MHz
Boost Clock-vs-
ArchitectureNV35NV43
OC Potential Poor vs -
Driver Support - vs -
Release Date01 Dec 2003vs01 Nov 2004
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory128 MBvs128 MB
Memory Speed350 MHzvs475 MHz
Memory Bus256 Bitvs128 Bit
Memory TypeDDRvsGDDR3
Memory Bandwidth11.2GB/secvs15.2GB/sec
L2 Cache - vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units4vs11
Actual Shader Performance0%vs0%
Technology130nmvs-
Texture Mapping Units4vs-
Texture Rate1.6 GTexel/svs-
Render Output Units4vs-
Pixel Rate1.6 GPixel/svs-
Comparison

GPU Outputs

Max Digital Resolution (WxH)2048x1536vs2560x1600
VGA Connections1vs1
DVI Connections1vs1
HDMI Connections0vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power35 Wattsvs48 Watts
Recommended PSU--

GPU Features

DirectX9.0bvs9.0c
Shader Model2.0vs3.0
Open GL1.5vs1.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

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

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewThe top-to-bottom family of NVIDIA GeForce FX GPUs provide both high-performance gaming for enthusiasts and best-in-class features for mainstream users. Whether you're a bleeding-edge gamer who desires the most advanced gaming technology available, or a PC user in search of the perfect combination of power, performance, and value--GeForce FX solutions deliver. Supercharge 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.
Recommended CPU
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Possible GPU Upgrades
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GPU Variants
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