ATI Radeon HD 4860 Full Specs

Summary

640 Shaders 700MHz

1GB GDDR596GB/s

Peak·FP32·FP16 896 GFLOPS

Form Factor PCIe Card

TDP 130W

Power Connectors 2x 6-Pin

Theoretical Performance

Clock Speed700MHz UC·Boost·OC

Peak OPS 896 GFLOPSFP32

FP32 896 GFLOPS

FP64 179.2 GFLOPS

Pixel Rate 11.2 GPixel/s

Texture Rate 22.4 GTexel/s

Core Config

Shaders 640 Shaders

TMUs 32 TMUs

ROPs 16 ROPs

CUs 8 CUs

Clocks

Boost Clock 700MHz

Cache

L1 16KB/CU

L2 Cache 256KB shared

Memory

1GB GDDR5

Memory Bus 256-bit

Memory Speed 3GT/s

Memory Bandwidth 96GB/s

ECC No

Power & Thermals

TDP 130W

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 2.0

Codec VC-1 AVC (H.264)

Card

Form Factor PCIe Card

PCIe PCIe 2.0 x16 2-Slots

Cooling Open-Air 1x Fan

Power Connectors 2x 6-Pin

Multi-GPU Multi-GPU Support Supported Multi-GPU Type 4-way CrossFireX

Chip

Manufacturer ATI

Chip Designer ATI

Architecture TeraScale 1

Family Radeon HD 4000

Branding

Codename Spartan

Chip Variant RV790 GT

Market Segment Desktop

Release Date Sep 9, 2009

Fabrication

Foundry TSMC

Fabrication Node 55nm

Die Size 282mm²

Transistor Count 959M

Transistor Density 3.4 MTr/mm²

Images