ATI Radeon HD 3870 Full Specs

Summary

320 Shaders 777MHz

1GB GDDR472.1GB/s

Peak·FP32·FP16 497.3 GFLOPS

Form Factor PCIe Card

TDP 106W

Power Connectors 1x 6-Pin

Theoretical Performance

Clock Speed777MHz UC·Boost·OC

Peak OPS 497.3 GFLOPSFP32

FP32 497.3 GFLOPS

FP64 99.46 GFLOPS

Pixel Rate 12.4 GPixel/s

Texture Rate 12.4 GTexel/s

Core Config

Shaders 320 Shaders

TMUs 16 TMUs

ROPs 16 ROPs

CUs 4 CUs

Clocks

Boost Clock 777MHz

Cache

L1 32KB/4SPs

L2 Cache 256KB shared

Memory

1GB GDDR4

Memory Bus 256-bit

Memory Speed 2.3GT/s

Memory Bandwidth 72.1GB/s

ECC No

Power & Thermals

TDP 106W

Video Output

Max Resolution 2560x1600

Refresh Rate Calculator 2560x1440 Resolution1440p QHD Refresh Rate 66Hz

Multi-Monitor 2

DSC Not Supported

Ports

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

API Support

Shader Model 4.1

DirectX DirectX 10 Direct3D 10_1

OpenGL 3.3 OpenCL 1.1

GFX 3

Decoder

Decoder UVD 1.0

Codec VC-1 AVC (H.264)

Card

Form Factor PCIe Card

PCIe PCIe 2.0 x16 2-Slots

Cooling Blower 1x Fan

Power Connectors 1x 6-Pin

Multi-GPU Multi-GPU Support Supported Multi-GPU Type 2-way CrossFireX

Chip

Manufacturer ATI

Chip Designer ATI

Architecture TeraScale 1

Family Radeon HD 3000

Branding

Codename Boom

Chip Variant RV670 Pro

Market Segment Desktop

Release Date Nov 19, 2007

Fabrication

Foundry TSMC

Fabrication Node 55nm

Die Size 192mm²

Transistor Count 666M

Transistor Density 3.47 MTr/mm²

Images