AMD Radeon HD 6970M Mac Edition vs ATI Radeon E4690 MXM

VS

AMD Radeon HD 6970M Mac Edition

ATI Radeon E4690 MXM

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 512MB VRAM Radeon E4690 MXM 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 2 years and 2 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 22.40GB/s)

640 additional rendering cores

ATI Radeon E4690 MXM 's Advantages

Lower TDP (30W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition +240%

1.306 TFLOPS

Radeon E4690 MXM

0.384 TFLOPS

Radeon HD 6970M Mac Edition

VS

Radeon E4690 MXM

Graphics Card

Aug 2011

Release Date

Jun 2009

Vancouver

Generation

Embedded

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

900 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

22.40GB/s

Render Config

12

Compute Units

4

-

960

Shading Units

320

48

TMUs

32

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

4.800 GPixel/s

32.64 GTexel/s

Texture Rate

19.20 GTexel/s

-

1306 GFLOPS

FP32 (float)

384.0 GFLOPS

-

Board Design

75W

TDP

30W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

RV730

Blackcomb XT (216-0811000)

GPU Variant

RV730 XT E4690 (215-0729055)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.514 billion

212 mm²

Die Size

146 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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