ATI Mobility Radeon X2500 vs ATI Mobility Radeon HD 3870 X2

VS

ATI Mobility Radeon X2500

ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon X2500 and 512MB VRAM Mobility Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 X2 's Advantages

Released 1 years and 3 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (54.40GB/s vs 12.80GB/s)

320 additional rendering cores

Score

Mobility Radeon X2500

VS

Mobility Radeon HD 3870 X2

Graphics Card

Jun 2007

Release Date

Sep 2008

M6x

Generation

M8x

Mobile

Type

Mobile

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

850 MHz

Memory

256MB

Memory Size

512MB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

256bit

12.80GB/s

Bandwidth

54.40GB/s

Render Config

-

Compute Units

4

-

Shading Units

320

4

TMUs

16

4

ROPs

16

-

L2 Cache

256 KB

-

Theoretical Performance

1.840 GPixel/s

Pixel Rate

10.56 GPixel/s

1.840 GTexel/s

Texture Rate

10.56 GTexel/s

-

FP32 (float)

422.4 GFLOPS

-

FP64 (double)

84.48 GFLOPS

Board Design

Unknown

TDP

110W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

M66

GPU Name

M88

-

Ultra-Threaded SE

Architecture

TeraScale

TSMC

Foundry

TSMC

90 nm

Process Size

55 nm

0.157 billion

Transistors

0.666 billion

150 mm²

Die Size

192 mm²

Graphics Features

9.0c (9_3)

DirectX

10.1 (10_1)

2.1

OpenGL

3.3

N/A

OpenCL

N/A

Vulkan

N/A

-

3.0

Shader Model

4.1

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