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Gaming Performance Comparison

Recommended System Requirements
Game Radeon X1800 GTO˛ GeForce 6800 Ultra
Halo: Reach 577% 617%
Cyberpunk 2077 2828% 3001%
Red Dead Redemption 2 2031% 2157%
Dragon Ball Z Kakarot 1215% 1292%
Call of Duty: Modern Warfare 2031% 2157%
Doom Eternal 1733% 1841%
Microsoft Flight Simulator 2828% 3001%
Grand Theft Auto VI 3157% 3349%
FIFA 20 1035% 1103%
Need For Speed Heat 2031% 2157%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon X1800 GTO˛ are very slightly better than the Nvidia GeForce 6800 Ultra.

The Radeon X1800 GTO˛ 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 GTO˛ 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. However, overall, the GeForce 6800 Ultra has superior memory performance.

The GeForce 6800 Ultra has 3.5 GB/sec greater memory bandwidth than the Radeon X1800 GTO˛, which means that the memory performance of the GeForce 6800 Ultra is marginally better than the Radeon X1800 GTO˛.

The Radeon X1800 GTO˛ has 12 Shader Processing Units and the GeForce 6800 Ultra has 22. However, the actual shader performance of the Radeon X1800 GTO˛ is 4 and the actual shader performance of the GeForce 6800 Ultra is 9. The GeForce 6800 Ultra having 5 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce 6800 Ultra delivers a marginally smoother and more efficient experience when processing graphical data than the Radeon X1800 GTO˛.

The Radeon X1800 GTO˛ requires 48 Watts to run and the GeForce 6800 Ultra requires 124 Watts. The GeForce 6800 Ultra requires 76 Watts more than the Radeon X1800 GTO˛ to run. The difference is significant enough that the GeForce 6800 Ultra may have an adverse affect on your yearly electricity bills in comparison to the Radeon X1800 GTO˛.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed500 MHzvs400 MHz
Boost Clock-vs-
OC Potential Fair vs -
Driver Support - vs -
Release Date01 Mar 2006vs01 Mar 2005
GPU LinkGD LinkGD Link

GPU Memory

Memory512 MBvs256 MB
Memory Speed495 MHzvs550 MHz
Memory Bus256 Bitvs256 Bit
Memory TypeGDDR3vsGDDR3
Memory Bandwidth31.7GB/secvs35.2GB/sec
L2 Cache - vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units12vs22
Actual Shader Performance0%vs0%
Texture Mapping Units-vs-
Texture Rate-vs-
Render Output Units-vs-
Pixel Rate-vs-

GPU Outputs

Max Digital Resolution (WxH)-vs2560x1600
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power48 Wattsvs124 Watts
Recommended PSU--

GPU Features

Shader Model3.0vs3.0
Open GL2.0vs1.5
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 ReviewRadeon X1800 GTO˛ is a variant of the middle-class Radeon X1800 GTO that features a frame buffer twice as big which should prove useful for today's modern games. However, at it's time of release, it barely made any difference.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
Possible GPU Upgrades
GPU Variants