Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon X1800 XT GeForce 6800 Ultra
Red Dead Redemption 2 1686% 2157%
Halo: Reach 468% 617%
Cyberpunk 2077 2354% 3001%
Call of Duty: Modern Warfare 1686% 2157%
Doom Eternal 1436% 1841%
Microsoft Flight Simulator 2354% 3001%
Grand Theft Auto VI 2630% 3349%
Dragon Ball Z Kakarot 1002% 1292%
Star Wars: Jedi - Fallen Order 2354% 3001%
Need For Speed Heat 1686% 2157%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon X1800 XT are noticeably better than the Nvidia GeForce 6800 Ultra.

The Radeon X1800 XT was released less than a year after the GeForce 6800 Ultra, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The Radeon X1800 XT has 256 MB more video memory than the GeForce 6800 Ultra, so is likely to be slightly better at displaying game textures at higher resolutions. This is supported by the fact that the Radeon X1800 XT also has superior memory performance overall.

The Radeon X1800 XT has 9.6 GB/sec greater memory bandwidth than the GeForce 6800 Ultra, which means that the memory performance of the Radeon X1800 XT is marginally better than the GeForce 6800 Ultra.

The Radeon X1800 XT has 16 Shader Processing Units and the GeForce 6800 Ultra has 22. However, the actual shader performance of the Radeon X1800 XT is 6 and the actual shader performance of the GeForce 6800 Ultra is 9. The GeForce 6800 Ultra having 3 better shader performance is not particularly notable, as altogether the Radeon X1800 XT performs better when taking into account other relevant data.

The Radeon X1800 XT requires 113 Watts to run and the GeForce 6800 Ultra requires 124 Watts. The GeForce 6800 Ultra requires 11 Watts more than the Radeon X1800 XT to run. The difference is not significant enough for the GeForce 6800 Ultra to have a noticeably larger impact on your yearly electricity bills than the Radeon X1800 XT.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed600 MHzvs400 MHz
Boost Clock-vs-
ArchitectureR520NV40/NV45
OC Potential Poor vs -
Driver Support - vs -
Release Date01 Oct 2005vs01 Mar 2005
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory512 MBvs256 MB
Memory Speed700 MHzvs550 MHz
Memory Bus256 Bitvs256 Bit
Memory TypeGDDR3vsGDDR3
Memory Bandwidth44.8GB/secvs35.2GB/sec
L2 Cache - vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units16vs22
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)-vs2560x1600
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections0vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power113 Wattsvs124 Watts
Recommended PSU--

GPU Features

DirectX9.0cvs9.0c
Shader Model3.0vs3.0
Open GL2.0vs1.5
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 ReviewRadeon X1800 XT is a performance GPU based on the 90nm variant of the R500 architecture.
It's based on the R520 Core and offers 16 Pixel Shaders, 16 TMUs and 16 ROPs, on a 256-bit of standard GDDR3. The central unit runs at 600MHz and the memory clock operates at up to 700MHz.
Its performance is considerably better than Radeon X1800 XL due to being higher clocked, as is the power consumption.
Most of today's games might be playable at medium settings although the low preset will have to suffice on some. As it's not based on a Shader-Unified architecture, both DirectX 10 & 11 games aren't supported.
The 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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