ATI Mobility Radeon HD 2700 vs ATI Mobility Radeon HD 3850 X2

VS

ATI Mobility Radeon HD 2700

ATI Mobility Radeon HD 3850 X2

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 2700 and 512MB VRAM Mobility Radeon HD 3850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 2700 's Advantages

Lower TDP (35W vs 70W)

ATI Mobility Radeon HD 3850 X2 's Advantages

Released 6 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (48.00GB/s vs 22.40GB/s)

200 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 2700

0.168 TFLOPS

Mobility Radeon HD 3850 X2 +120%

0.371 TFLOPS

Mobility Radeon HD 2700

VS

Mobility Radeon HD 3850 X2

Graphics Card

Dec 2007

Release Date

Jun 2008

M7x

Generation

M8x

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

700 MHz

Memory Clock

750 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

22.40GB/s

Bandwidth

48.00GB/s

Render Config

3

Compute Units

4

-

120

Shading Units

320

8

TMUs

16

4

ROPs

16

-

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

9.280 GPixel/s

5.600 GTexel/s

Texture Rate

9.280 GTexel/s

-

168.0 GFLOPS

FP32 (float)

371.2 GFLOPS

-

FP64 (double)

74.24 GFLOPS

Board Design

35W

TDP

70W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M76

GPU Name

M88

-

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

65 nm

Process Size

55 nm

0.39 billion

Transistors

0.666 billion

153 mm²

Die Size

192 mm²

Graphics Features

10.0 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

N/A

Vulkan

N/A

-

4.0

Shader Model

4.1

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