Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce 6600 GT 256MB GeForce 6800 XT
Cyberpunk 2077 4164% 3398%
Assassins Creed: Valhalla 3800% 3100%
Call of Duty: Black Ops Cold War 3674% 2996%
Microsoft Flight Simulator 3674% 2996%
Immortals: Fenyx Rising 3372% 2748%
FIFA 21 2051% 1665%
World of Warcraft: Shadowlands 6013% 4915%
Watch Dogs Legion 4013% 3275%
Genshin Impact 4164% 3398%
Grand Theft Auto VI 5900% 4823%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 6800 XT are noticeably better than the Nvidia GeForce 6600 GT 256MB.

The GeForce 6800 XT was released less than a year after the 6600 GT, 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 6600 GT 256MB and the GeForce 6800 XT have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The 6600 GT has 4.8 GB/sec greater memory bandwidth than the GeForce 6800 XT, which means that the memory performance of the 6600 GT is marginally better than the GeForce 6800 XT.

The GeForce 6600 GT 256MB has 11 Shader Processing Units and the GeForce 6800 XT has 12. However, the actual shader performance of the 6600 GT is 6 and the actual shader performance of the GeForce 6800 XT is 4. The 6600 GT having 2 better shader performance and an altogether better performance when taking into account other relevant data means that the 6600 GT delivers a marginally smoother and more efficient experience when processing graphical data than the GeForce 6800 XT.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed500 MHzvs337 MHz
Boost Clock-vs-
ArchitectureNV43NV40/NV41
OC Potential - vs -
Driver Support - vs -
Release Date01 Nov 2004vs02 Jan 2005
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory256 MBvs256 MB
Memory Speed500 MHzvs350 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeGDDR3vsDDR
Memory Bandwidth16GB/secvs11.2GB/sec
L2 Cache - vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units11vs12
Actual Shader Performance0%vs0%
Technology-vs-
Texture Mapping Units-vs-
Texture Rate-vs-
Render Output Units-vs-
Pixel Rate-vs-
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections1vs0
DVI Connections1vs2
HDMI Connections0vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power--
Recommended PSU--

GPU Features

DirectX9.0cvs9.0c
Shader Model3.0vs3.0
Open GL1.5vs1.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

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 playedThe groundbreaking new NVIDIA GeForce 6800 graphics processing units (GPUs) and their revolutionary technologies power worlds where reality and fantasy meet; worlds in which new standards are set for visual realism and quality, performance, and video functionality. The GeForce 6800 GPUs deliver powerful, elegant graphics to drench your senses, immersing you in unparalleled worlds of visual effects for the ultimate PC experience.
Recommended CPU
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Possible GPU Upgrades
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GPU Variants
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