Card Comparisons and Testing Setup
The new Radeon HD 4770 512MB is supposed to start selling today for $99 with a $10 mail-in rebate and thus the comparison to NVIDIA’s lineup includes the GeForce 9800 GT ($99) and the newer GeForce GTS 250 1GB ($129).  Also, just to mix things up I tossed in some results from the Radeon HD 4850 512MB card as you can find of these cards online for just $110 or so.

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  1
AMD Radeon HD 4770 512MB

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  2
ASUS NVIDIA GeForce 9800 GT 512MB

We are now moving away from Core 2 as our platform of choice and on to the world of Nehalem, the Core i7.  Our system is built around an Intel Core i7-920 2.67 GHz processor on an ASUS P6T6 WS Revolution motherboard that sports both the X58 chipset and the NVIDIA nForce 200 chipset with 4 full x16 PCIe 2.0 graphics slots should would test the extreme cases of GPU scaling.  6GB of Corsair DDR3-1600 memory are used as well and a PC Power and Cooling 1200 watt Turbo-Cool power supply keeps everything running 100% stable. 

Test System Setup

CPU

Intel Core i7-920 @ 2.67 GHz

Motherboards

ASUS P6T6 WS Revolution X58 + nForce 200

Memory 

Corsair 3 x 2GB DDR3-1600

Hard Drive

Western Digital VelociRaptor 300GB

Sound Card

Sound Blaster Audigy 2 Value

Video Card

AMD Radeon HD 4770 512MB
AMD Radeon HD 4850 512MB
NVIDIA GeForce 9800 GT 512MB
NVIDIA GeForce GTS 250 1GB

Video Drivers

NVIDIA: 182.08
AMD: Catalyst Beta
Power Supply PC Power and Cooling Turbo-Cool 1200w

DirectX Version

DX10 / DX9c

Operating System

Windows Vista Ultimate 64-bit


Our thanks go out to Corsair for the memory for our test bed, to PC Power and Cooling for the 1200w beast of a PSU for the system and to ASUS for the P6T6 WS Revolution motherboard.
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