Product: GeForce 6600 DDR2
Company: XFX
Authour: Mark 'Ratchet' Thorne
Date: November 25th, 2005
Specifications

The 6600 DDR2 uses the same NV43 graphics core as the other cards in the 6600 series. The NV43 core features 8 pixel pipelines, 3 vertex shader units, and a 128-bit memory bus. It has around 143 million transistors and is built on an 110nm manufacturing process by TSMC.

Compared to ATI's X1300 Pro, the 6600 DDR2 looks like a good match on paper. The 6600 DDR2 has twice the pixel pipelines, but thanks to the extreme core clockrate of the X1300 Pro, both cards are comparable: the 6600 DDR2 has an advantage in texel fillrate, but lacks pixel fillrate power when compared to the X1300 Pro. They both have the same 128-bit bus and same 400MHz memory, so they both naturally end up with the exact same raw bandwidth numbers. Both cards, of course, also support Shader Model 3.0.

Here's a breakdown:

  XFX GeForce 6600 DDR2 GeForce 6600 GT

Radeon X1300 Pro

Radeon X700 Pro
Core NV43 NV43 RV515 RV410
Silicon Process 110nm 110nm 90nm low-k 110nm
Transistor Count
(millions)
143 143 100 120
Core Speed MHz 400 500 600 425
Memory Speed MHz 400 500 400 432
Memory Size 256 MB 128 MB 256 MB 256 MB
Bus Standard PEG 16x PEG 16x PEG x16 PEG x16
Bus Width 128bit 128bit 128bit 128bit
Pipeline Configuration
Textures/Pixels/Z Samples (Per Clock)
8/4/8 8/4/8 4/4/4 8/8/8
Vertex Units 3 3 2 6
Peak Memory Bandwidth
(GB/s)
12.8 16.0 12.8 13.8
Pixel Fillrate
(million pixels/sec)
1,600 2,000 2,400 3,400
Texel Fillrate
(million texels/sec)
3,200 4,000 2,400 3,400
API Compliancy DX 9.0c
Shader Model 3.0
DX 9.0c
Shader Model 3.0
DX 9.0c
Shader Model 3.0
DX 9.0b
Shader Model 2.0
Infineon DDR2 2.5ns Memory Module
Infineon DDR2 2.5ns Memory Module

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