AMD Radeon HD 6950M vs ATI Mobility Radeon HD 2600 XT Mac Edition

VS

AMD Radeon HD 6950M

ATI Mobility Radeon HD 2600 XT Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6950M and 256MB VRAM Mobility Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950M 's Advantages

Released 3 years and 6 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 21.92GB/s)

840 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6950M +673%

1.114 TFLOPS

Mobility Radeon HD 2600 XT Mac Edition

0.144 TFLOPS

Radeon HD 6950M

VS

Mobility Radeon HD 2600 XT Mac Edition

Graphics Card

Jan 2011

Release Date

Jul 2007

Vancouver

Generation

M7x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

900 MHz

Memory Clock

685 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

21.92GB/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

64 KB

-

Theoretical Performance

18.56 GPixel/s

Pixel Rate

2.400 GPixel/s

27.84 GTexel/s

Texture Rate

4.800 GTexel/s

-

1114 GFLOPS

FP32 (float)

144.0 GFLOPS

-

Board Design

50W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Blackcomb

GPU Name

M76

Blackcomb PRO

GPU Variant

M76 XT-M (216XJBKA13FG)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.7 billion

Transistors

0.39 billion

212 mm²

Die Size

153 mm²

Graphics Features

11.2 (11_0)

DirectX

10.0 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.0

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