AMD Radeon HD 7670M vs AMD Radeon HD 6970M Mac Edition

VS

AMD Radeon HD 7670M

AMD Radeon HD 6970M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7670M and 2GB VRAM Radeon HD 6970M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670M 's Advantages

Released 6 months late

Lower TDP (20W vs 75W)

AMD Radeon HD 6970M Mac Edition 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (115.2GB/s vs 28.80GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7670M

0.576 TFLOPS

Radeon HD 6970M Mac Edition +126%

1.306 TFLOPS

Radeon HD 7670M

VS

Radeon HD 6970M Mac Edition

Graphics Card

Feb 2012

Release Date

Aug 2011

London

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

115.2GB/s

Render Config

6

Compute Units

12

-

480

Shading Units

960

24

TMUs

48

16

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

21.76 GPixel/s

14.40 GTexel/s

Texture Rate

32.64 GTexel/s

-

576.0 GFLOPS

FP32 (float)

1306 GFLOPS

-

Board Design

20W

TDP

75W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Thames

GPU Name

Blackcomb

Thames XT (216-0833000)

GPU Variant

Blackcomb XT (216-0811000)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

1.7 billion

104 mm²

Die Size

212 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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