ATI Mobility Radeon HD 5870 vs ATI Mobility Radeon HD 4670

VS

ATI Mobility Radeon HD 5870

ATI Mobility Radeon HD 4670

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 5870 and 512MB VRAM Mobility Radeon HD 4670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 5870 's Advantages

Released 1 years late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 25.60GB/s)

480 additional rendering cores

ATI Mobility Radeon HD 4670 's Advantages

Lower TDP (35W vs 50W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 5870 +159%

1.12 TFLOPS

Mobility Radeon HD 4670

0.432 TFLOPS

Mobility Radeon HD 5870

VS

Mobility Radeon HD 4670

Graphics Card

Jan 2010

Release Date

Jan 2009

Manhattan

Generation

M9x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

25.60GB/s

Render Config

10

Compute Units

4

-

800

Shading Units

320

40

TMUs

32

16

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

5.400 GPixel/s

28.00 GTexel/s

Texture Rate

21.60 GTexel/s

-

1120 GFLOPS

FP32 (float)

432.0 GFLOPS

-

Board Design

50W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Broadway

GPU Name

M96

Broadway XT (216-0769008)

GPU Variant

M96 XT (216-0729051)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.04 billion

Transistors

0.514 billion

166 mm²

Die Size

146 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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