ATI Radeon E4690 MXM vs ATI Mobility Radeon HD 4870 X2

VS

ATI Radeon E4690 MXM

ATI Mobility Radeon HD 4870 X2

We compared two Mobile platform GPUs: 512MB VRAM Radeon E4690 MXM and 1024MB VRAM Mobility Radeon HD 4870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4870 X2 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (89.60GB/s vs 22.40GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon E4690 MXM

0.384 TFLOPS

Mobility Radeon HD 4870 X2 +129%

0.88 TFLOPS

Radeon E4690 MXM

VS

Mobility Radeon HD 4870 X2

Graphics Card

Jun 2009

Release Date

Jan 2009

Embedded

Generation

M9x

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

700 MHz

Memory Clock

700 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

22.40GB/s

Bandwidth

89.60GB/s

Render Config

4

Compute Units

10

-

320

Shading Units

800

32

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

8.800 GPixel/s

19.20 GTexel/s

Texture Rate

22.00 GTexel/s

-

384.0 GFLOPS

FP32 (float)

880.0 GFLOPS

-

FP64 (double)

176.0 GFLOPS

Board Design

30W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

RV730

GPU Name

M98

RV730 XT E4690 (215-0729055)

GPU Variant

M98 XT L2 (216-0732023)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.514 billion

Transistors

0.956 billion

146 mm²

Die Size

256 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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