Radeon HD 6730M and Radeon HD 3870 - video card comparison

Radeon HD 6730M

Radeon HD 3870

Architecture

Terascale 2 (2009−2015)

TeraScale (2005−2013)

GPU code name

Whistler-XT

RV670

Market segment

Laptop

Desktop

Release date

January 2011

November 2007

Interface

MXM-A (3.0)

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

Core clock speed

725 MHz

777 MHz

Floating-point performance

696.0 gflops

497.3 gflops

Manufacturing process technology

40 nm

55 nm

Number of transistors

716 million

666 million

Pipelines / CUDA cores

480

320

Power consumption (TDP)

35 Watt

106 Watt

Texture fill rate

17.40

12.43

Memory type

DDR3

GDDR4

Maximum RAM amount

1 GB

512 MB

Memory bus width

128 Bit

256 Bit

Memory clock speed

800 MHz

2252 MHz

Memory bandwidth

25.6 GB/s

72.06 GB/s

Shared memory

Display Connectors

No outputs

2x DVI, 1x S-Video

DirectX

11.2 (11_0)

10.1 (10_1)

OpenCL

1.2

N/A

OpenGL

4.4

3.3

Shader Model

5.0

4.1

Vulkan

N/A