NVIDIA GeForce 9800 GT vs ATI Radeon HD 3850 X2 Full Specs

Summary

112 Shaders 600MHz	640 Shaders 668MHz
1GB GDDR357.6GB/s	1048MB GDDR3106GB/s
Peak·FP32·FP16 336 GFLOPS	Peak·FP32·FP16 855 GFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 125W	TDP 140W
Power Connectors - 1x 6-Pin	Power Connectors 1x 8-Pin 1x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

GeForce 9800 GT336 GFLOPSFP32

x1

Radeon HD 3850 X2855 GFLOPSFP32 (2x 427.5 GFLOPS)

x2.54

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Theoretical Performance

Clock Speed600MHz UC·Boost·OC	Clock Speed668MHz UC·Boost·OC
Peak OPS 336 GFLOPSFP32	Peak OPS 855 GFLOPSFP32
FP32 336 GFLOPS	FP32 855 GFLOPS
-	FP64 171 GFLOPS
Pixel Rate 24 GPixel/s	Pixel Rate 10.7 GPixel/s
Texture Rate 84 GTexel/s	Texture Rate 10.7 GTexel/s

Core Config

Shaders 112 Shaders	Shaders 640 Shaders
TMUs 56 TMUs	TMUs 32 TMUs
ROPs 16 ROPs	ROPs 32 ROPs
SMs 14 SMs	CUs 8 CUs

Clocks

Boost Clock 600MHz	Boost Clock 668MHz
Shader Clock 1.5GHz	Shader Clock -

Cache

L2 Cache 64KB shared

L2 Cache 256KB shared

Memory

1GB GDDR3	1048MB GDDR3
Memory Bus 256-bit	Memory Bus 256-bit
Memory Speed 1.8GT/s	Memory Speed 1.7GT/s
Memory Bandwidth 57.6GB/s	Memory Bandwidth 106GB/s

Power & Thermals

TDP 125W

TDP 140W

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 VP2

Decoder Model UVD 1.0

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 1-Slots	PCIe 2-Slots
Height 111 mm (4.37") Width 229 mm (9.02") Depth 20 mm (0.79")	-
Cooling Blower 1x Fan	Cooling Open-Air 1x Fan
Power Connectors 1x 6-Pin	Power Connectors 1x 8-Pin, 1x 6-Pin

Chip

Manufacturer NVIDIA	Manufacturer ATI
Chip Designer NVIDIA	Chip Designer ATI
Architecture Tesla	Architecture TeraScale 1
Family GeForce 9000	Family Radeon HD 3000
Branding	Branding
Codename NV92	Codename Boom
Chip Variant -	Chip Variant RV670 Pro
Market Segment Desktop	Market Segment Desktop
Release Date Jul 1, 2008	Release Date Apr 4, 2008

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 65nm	Fabrication Node 55nm
Die Size 324mm²	Die Size 192mm²
Transistor Count 754 Million	Transistor Count 666 Million
Transistor Density 2.33 MTr/mm²	Transistor Density 3.47 MTr/mm²

Images

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