AMD Radeon HD 7970M vs ATI Radeon E4690 MXM

VS

AMD Radeon HD 7970M

ATI Radeon E4690 MXM

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7970M 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 7970M 's Advantages

Released 2 years and 10 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 22.40GB/s)

960 additional rendering cores

ATI Radeon E4690 MXM 's Advantages

Lower TDP (30W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 7970M +466%

2.176 TFLOPS

Radeon E4690 MXM

0.384 TFLOPS

Radeon HD 7970M

VS

Radeon E4690 MXM

Graphics Card

Apr 2012

Release Date

Jun 2009

London

Generation

Embedded

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

1200 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

22.40GB/s

Render Config

20

Compute Units

4

-

1280

Shading Units

320

80

TMUs

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

4.800 GPixel/s

68.00 GTexel/s

Texture Rate

19.20 GTexel/s

-

2.176 TFLOPS

FP32 (float)

384.0 GFLOPS

136.0 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

30W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Wimbledon

GPU Name

RV730

Wimbledon XT (216-0836036)

GPU Variant

RV730 XT E4690 (215-0729055)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.514 billion

212 mm²

Die Size

146 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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