AMD Radeon HD 6970M Mac Edition vs ATI Mobility Radeon HD 3670

VS

AMD Radeon HD 6970M Mac Edition

ATI Mobility Radeon HD 3670

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 256MB VRAM Mobility Radeon HD 3670 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 25.60GB/s)

840 additional rendering cores

ATI Mobility Radeon HD 3670 's Advantages

Lower TDP (30W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition +701%

1.306 TFLOPS

Mobility Radeon HD 3670

0.163 TFLOPS

Radeon HD 6970M Mac Edition

VS

Mobility Radeon HD 3670

Graphics Card

Aug 2011

Release Date

Jan 2008

Vancouver

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

25.60GB/s

Render Config

12

Compute Units

3

-

960

Shading Units

120

48

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

128 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

2.720 GPixel/s

32.64 GTexel/s

Texture Rate

5.440 GTexel/s

-

1306 GFLOPS

FP32 (float)

163.2 GFLOPS

-

Board Design

75W

TDP

30W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

M86

Blackcomb XT (216-0811000)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.378 billion

212 mm²

Die Size

135 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (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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