AMD Radeon HD 6970M Mac Edition vs ATI Mobility Radeon HD 3470

VS

AMD Radeon HD 6970M Mac Edition

ATI Mobility Radeon HD 3470

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 256MB VRAM Mobility Radeon HD 3470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M Mac Edition 's Advantages

Released 3 years and 7 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 6.400GB/s)

920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition +2318%

1.306 TFLOPS

Mobility Radeon HD 3470

0.054 TFLOPS

Radeon HD 6970M Mac Edition

VS

Mobility Radeon HD 3470

Graphics Card

Aug 2011

Release Date

Jan 2008

Vancouver

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

900 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

6.400GB/s

Render Config

12

Compute Units

2

-

960

Shading Units

40

48

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

2.720 GPixel/s

32.64 GTexel/s

Texture Rate

2.720 GTexel/s

-

1306 GFLOPS

FP32 (float)

54.40 GFLOPS

-

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

M82

Blackcomb XT (216-0811000)

GPU Variant

M82-ME XT (216-0707009)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.181 billion

212 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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