NVIDIA GeForce 8800 Ultra vs ATI Radeon HD 3870 Full Specs

Summary

128 Shaders 612MHz	320 Shaders 777MHz
786MB GDDR3103.7GB/s	1GB GDDR472.1GB/s
Peak·FP32·FP16 384 GFLOPS	Peak·FP32·FP16 497.3 GFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 175W	TDP 106W
Power Connectors 2x 6-Pin	Power Connectors 1x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

GeForce 8800 Ultra384 GFLOPSFP32

x1

Radeon HD 3870497.3 GFLOPSFP32

x1.29

Show Top Score

Theoretical Performance

Clock Speed612MHz UC·Boost·OC	Clock Speed777MHz UC·Boost·OC
Peak OPS 384 GFLOPSFP32	Peak OPS 497.3 GFLOPSFP32
FP32 384 GFLOPS	FP32 497.3 GFLOPS
-	FP64 99.46 GFLOPS
Pixel Rate 36 GPixel/s	Pixel Rate 12.4 GPixel/s
Texture Rate 48 GTexel/s	Texture Rate 12.4 GTexel/s

Core Config

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

Clocks

Boost Clock 612MHz	Boost Clock 777MHz
Shader Clock 1.5GHz	Shader Clock -

Cache

L2 Cache 96KB shared

L2 Cache 256KB shared

Memory

786MB GDDR3	1GB GDDR4
Memory Bus 384-bit	Memory Bus 256-bit
Memory Speed 2.2GT/s	Memory Speed 2.3GT/s
Memory Bandwidth 103.7GB/s	Memory Bandwidth 72.1GB/s

Power & Thermals

TDP 175W

TDP 106W

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 VP1

Decoder Model UVD 1.0

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 2-Slots	PCIe 2-Slots
Height 140 mm (5.51") Width 270 mm (10.63") Depth 37 mm (1.46")	-
Cooling Blower 1x Fan	Cooling Blower 1x Fan
Power Connectors 2x 6-Pin	Power Connectors 1x 6-Pin

Chip

Manufacturer NVIDIA	Manufacturer ATI
Chip Designer NVIDIA	Chip Designer ATI
Architecture Tesla	Architecture TeraScale 1
Family GeForce 8000	Family Radeon HD 3000
Branding	Branding
Codename NV50	Codename Boom
Chip Variant -	Chip Variant RV670 Pro
Market Segment Desktop	Market Segment Desktop
Release Date May 2, 2007	Release Date Nov 19, 2007

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 90nm	Fabrication Node 55nm
Die Size 484mm²	Die Size 192mm²
Transistor Count 681 Million	Transistor Count 666 Million
Transistor Density 1.41 MTr/mm²	Transistor Density 3.47 MTr/mm²

Images

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