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The Graphics Chips Compared

DirectX 10 Shootout: Nvidia vs. ATI
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Turbo Cache (Nvidia) and Hyper Memory (ATI) are features that allow the graphics cards to borrow some RAM from system memory. This minimizes the performance impact of enabling FSAA at higher resolutions on cards with less on-board memory. Under XP, video memory can be expanded from 128 MB or 256 MB to 512 MB. Vista always displays an augmented video memory of 1022 MB.

Nvidia Graphics Cards
Graphics Chip Code Name Memory HDR-R Vertexshader/Pixelshader GPU Frequency Memory Frequency
Geforce 8800 Ultra OC G80 768 MB GDDR3 yes 4.0 660 MHz 2300 MHz
Geforce 8800 Ultra G80 768 MB GDDR3 yes 4.0 612 MHz 2160 MHz
Geforce 8800 GTX G80 768 MB GDDR3 yes 4.0 576 MHz 1800 MHz
Geforce 8800 GTS G80 640 MB GDDR3 yes 4.0 500 MHz 1600 MHz
Geforce 8800 GTS OC G80 320 MB GDDR3 yes 4.0 575 MHz 1700 MHz
Geforce 8800 GTS G80 320 MB GDDR3 yes 4.0 500 MHz 1600 MHz
Geforce 8600 GTS G84 512 MB GDDR3 yes 4.0 675 MHz 2016 MHz
Geforce 8600 GTS G84 256 MB GDDR3 yes 4.0 675 MHz 2016 MHz
Geforce 8600 GT OC G84 256 MB GDDR3 yes 4.0 580 MHz 1600 MHz
Geforce 8500 GT TC G86 256/1022 MB DDR2 yes 4.0 459 MHz 800 MHz
Geforce 8400 GS TC G86 256/1022 MB DDR2 yes 4.0 459 MHz 800 MHz
ATI Graphics Cards
Graphics Chip Code Name Memory HDR-R Vertexshader/Pixelshader GPU Frequency Memory Frequency
Radeon HD2900 XT R600 512 MB GDDR3 yes 4.0 743 MHz 1656 MHz
Radeon HD2600 XT RV630 512 MB GDDR3 yes 4.0 800 MHz 1400 MHz
Radeon HD2600 XT RV630 256 MB GDDR4 yes 4.0 800 MHz 2200 MHz
Radeon HD2600 Pro RV630 256 MB DDR3 yes 4.0 600 MHz 1400 MHz
Radeon HD2400 XT HM RV610 128/1022 MB DDR2 yes 4.0 700 MHz 800 MHz
Radeon HD2400 Pro HM RV610 256/1022 MB DDR2 yes 4.0 525 MHz 800 MHz

HDR-R=High Dynamic Range Rendering


SM=Shader Model
Memory Frequency=physical frequency is half of DDR
TC=Turbo Cache
HM=Hyper Memory
OC=Overclocked

Test Setup

Nvidia Single Graphics Cards, ATI Single and Crossfire Graphics Cards
CPU Intel Core 2 Extreme X6800, 2.93 GHz
FSB 1066 MHz
Motherboard Intel D975XBX2
Chipset Intel 975X
Memory 2x1 GByte, Vitesta DDR2 800 4-4-4-12 533 MHz
Hard Drive Hitachi 2 x 120 GByte S-ATA, 8 MB Cache
DVD Gigabyte GO-D1600C
LAN Intel 1000 Pro
Audio Intel High Definition Audio
Power Supply Seasonic M12 600 Watt
Drivers & Configuration
Graphics ATI Catalyst 7.9
Nvidia Forceware 162.22
Opeating System Windows Vista Enterprise
DirectX Version 10
Chipset Driver Intel Intel 8.2.0.1014
Test Matrix
Application Benchmark Anti Aliasing (AA) Anisotropic Filtering (AF) Possible Problems and Settings
Bioshock Fraps/Rapture-Intro, Plasmid-Intro No AA Graphics Driver Decides AF, AA not offered in Game Menu
Company of Heroes v1.70 Game Benchmark Application Decides Graphics Driver Decides AF not offered in Game Menu, -novsync
Lost Planet Fraps/Mission 1 Application Decides Application Decides  
World in Conflict Game Benchmark, Fraps/Tutorial Application Decides Application Decides  
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