AMD Radeon HD 7950M vs AMD Radeon HD 6970M Mac Edition

VS

AMD Radeon HD 7950M

AMD Radeon HD 6970M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7950M 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 7950M 's Advantages

Released 8 months late

Larger VRAM bandwidth (128.0GB/s vs 115.2GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950M +37%

1.792 TFLOPS

Radeon HD 6970M Mac Edition

1.306 TFLOPS

Radeon HD 7950M

VS

Radeon HD 6970M Mac Edition

Graphics Card

Apr 2012

Release Date

Aug 2011

London

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

115.2GB/s

Render Config

20

Compute Units

12

-

1280

Shading Units

960

80

TMUs

48

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

22.40 GPixel/s

Pixel Rate

21.76 GPixel/s

56.00 GTexel/s

Texture Rate

32.64 GTexel/s

-

1.792 TFLOPS

FP32 (float)

1306 GFLOPS

-

Board Design

75W

TDP

75W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Wimbledon

GPU Name

Blackcomb

Wimbledon PRO

GPU Variant

Blackcomb XT (216-0811000)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

1.7 billion

212 mm²

Die Size

212 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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