ATI Mobility Radeon HD 5870 vs ATI Mobility Radeon HD 3470

VS

ATI Mobility Radeon HD 5870

ATI Mobility Radeon HD 3470

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 5870 and 256MB VRAM Mobility Radeon HD 3470 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 2 years late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 6.400GB/s)

760 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 5870 +1974%

1.12 TFLOPS

Mobility Radeon HD 3470

0.054 TFLOPS

Mobility Radeon HD 5870

VS

Mobility Radeon HD 3470

Graphics Card

Jan 2010

Release Date

Jan 2008

Manhattan

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

1000 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

6.400GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

40

TMUs

4

16

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

2.720 GPixel/s

28.00 GTexel/s

Texture Rate

2.720 GTexel/s

-

1120 GFLOPS

FP32 (float)

54.40 GFLOPS

-

Board Design

50W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Broadway

GPU Name

M82

Broadway XT (216-0769008)

GPU Variant

M82-ME XT (216-0707009)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.04 billion

Transistors

0.181 billion

166 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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