ATI Mobility Radeon HD 3870 vs ATI Mobility FireGL V5725

VS

ATI Mobility Radeon HD 3870

ATI Mobility FireGL V5725

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 256MB VRAM Mobility FireGL V5725 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (54.40GB/s vs 25.60GB/s)

200 additional rendering cores

ATI Mobility FireGL V5725 's Advantages

Released 7 months late

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870 +158%

0.422 TFLOPS

Mobility FireGL V5725

0.163 TFLOPS

Mobility Radeon HD 3870

VS

Mobility FireGL V5725

Graphics Card

Jun 2008

Release Date

Jan 2009

M8x

Generation

Mobility FireGL

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

850 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

256MB

GDDR3

Memory Type

GDDR3

256bit

Memory Bus

128bit

54.40GB/s

Bandwidth

25.60GB/s

Render Config

4

Compute Units

3

-

320

Shading Units

120

16

TMUs

8

16

ROPs

4

-

256 KB

L2 Cache

128 KB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

2.720 GPixel/s

10.56 GTexel/s

Texture Rate

5.440 GTexel/s

-

422.4 GFLOPS

FP32 (float)

163.2 GFLOPS

84.48 GFLOPS

FP64 (double)

-

Board Design

55W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

M88

GPU Name

M86

-

GPU Variant

M86-ME XT GL (216-0683010)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.666 billion

Transistors

0.378 billion

192 mm²

Die Size

135 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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