ATI Mobility Radeon HD 4860 Full Specs - HMC

640 Shaders

650MHz

1GB GDDR564GB/s

··

832 GFLOPS

Form Factor

MXM-A

Clock Speed

··

Peak OPS

832 GFLOPSFP32

FP32

832 GFLOPS

FP64

166.4 GFLOPS

Pixel Rate

10.4 GPixel/s

Texture Rate

20.8 GTexel/s

Shaders

640 Shaders

TMUs

32 TMUs

ROPs

16 ROPs

CUs

8 CUs

Boost Clock

650MHz

L1

16KB/CU

L2 Cache

256KB shared

1GB GDDR5

Memory Bus

128-bit

Memory Speed

4GT/s

Memory Bandwidth

64GB/s

ECC

No

Max Resolution

2560x1600

Refresh Rate Calculator

2560x1440

Resolution1440p QHD

Refresh Rate

66Hz

Multi-Monitor

2

DSC

Not Supported

Shader Model

4.1

DirectX

DirectX 10

Direct3D

10_1

OpenGL

3.3

OpenCL

1.1

GFX

3

Decoder

UVD 2.0

Codec

VC-1

AVC (H.264)

Form Factor

MXM-A

PCIe

PCIe 2.0 x16

Multi-GPU

Multi-GPU Support

Supported

Multi-GPU Type

2-way CrossFireX

Manufacturer

Chip Designer

Architecture

Family

Branding

Radeon 2008 branding

Codename

Walden

Chip Variant

RV740

Market Segment

Laptop

Release Date

Mar 3, 2009

Foundry

TSMC

Fabrication Node

40nm

Die Size

137mm²

Transistor Count

826M

Transistor Density

6.03 MTr/mm²