ATI Radeon HD 2900 XT vs NVIDIA GeForce 8800 GTX Full Specs

Summary

320 Shaders 743MHz	128 Shaders 575MHz
1GB GDDR4128GB/s	786MB GDDR386.4GB/s
Peak·FP32·FP16 475.5 GFLOPS	Peak·FP32·FP16 345.6 GFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 215W	TDP 145W
Power Connectors 1x 8-Pin 1x 6-Pin	Power Connectors - 2x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 Memory Bandwidth TDP

Radeon HD 2900 XT475.5 GFLOPSFP32

x1.38

GeForce 8800 GTX345.6 GFLOPSFP32

x1

Show Top Score

Theoretical Performance

Clock Speed743MHz UC·Boost·OC	Clock Speed575MHz UC·Boost·OC
Peak OPS 475.5 GFLOPSFP32	Peak OPS 345.6 GFLOPSFP32
FP32 475.5 GFLOPS	FP32 345.6 GFLOPS
Pixel Rate 11.9 GPixel/s	Pixel Rate 32.4 GPixel/s
Texture Rate 11.9 GTexel/s	Texture Rate 43.2 GTexel/s

Core Config

Shaders 320 Shaders	Shaders 128 Shaders
TMUs 16 TMUs	TMUs 32 TMUs
ROPs 16 ROPs	ROPs 24 ROPs
CUs 4 CUs	SMs 16 SMs

Clocks

Boost Clock 743MHz	Boost Clock 575MHz
Shader Clock -	Shader Clock 1.35GHz

Cache

L2 Cache 256KB shared

L2 Cache 96KB shared

Memory

1GB GDDR4	786MB GDDR3
Memory Bus 512-bit	Memory Bus 384-bit
Memory Speed 2GT/s	Memory Speed 1.8GT/s
Memory Bandwidth 128GB/s	Memory Bandwidth 86.4GB/s

Power & Thermals

TDP 215W

TDP 145W

Video Output

Multi-Monitor 2

Multi-Monitor 2

Ports

2x DVI-I Dual-Link	2x DVI-I Dual-Link
1x S-Video	1x S-Video

Decoder

Decoder Model UVD 1.0

Decoder Model VP1

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 2-Slots	PCIe 2-Slots
-	Height 111 mm (4.37") Width 270 mm (10.63") Depth 37 mm (1.46")
Cooling Blower 1x Fan	Cooling Blower 1x Fan
Power Connectors 1x 8-Pin, 1x 6-Pin	Power Connectors 2x 6-Pin

Chip

Manufacturer ATI	Manufacturer NVIDIA
Chip Designer ATI	Chip Designer NVIDIA
Architecture TeraScale 1	Architecture Tesla
Family Radeon HD 2000	Family GeForce 8000
Branding	Branding
Codename Pele	Codename NV50
Chip Variant R600 GT	Chip Variant -
Market Segment Desktop	Market Segment Desktop
Release Date May 14, 2007	Release Date Nov 8, 2006

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 80nm	Fabrication Node 90nm
Die Size 420mm²	Die Size 484mm²
Transistor Count 720 Million	Transistor Count 681 Million
Transistor Density 1.71 MTr/mm²	Transistor Density 1.41 MTr/mm²

Images

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Competitors

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