Radeon HD 4870 and Radeon HD 6630M - video card comparison

Passmark - benchmark score Radeon HD 4870 vs Radeon HD 6630M

Radeon HD 4870

1411

Radeon HD 6630M

705

Radeon HD 4870

Radeon HD 6630M

Architecture

TeraScale (2005−2013)

Terascale 2 (2009−2015)

GPU code name

RV770

Whistler-LP

Market segment

Desktop

Laptop

Release date

June 2008

January 2011

Interface

PCIe 2.0 x16

Supplementary power connectors

2x 6-pin

Core clock speed

750 MHz

485 MHz

Floating-point performance

1,200.0 gflops

480.0 gflops

Manufacturing process technology

55 nm

40 nm

Number of transistors

956 million

716 million

Pipelines / CUDA cores

800

480

Power consumption (TDP)

150 Watt

26 Watt

Texture fill rate

30.00

12.00

Memory type

GDDR5

DDR3

Maximum RAM amount

1 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

3600 MHz

800 MHz

Memory bandwidth

115.2 GB/s

25.6 GB/s

Shared memory

Display Connectors

2x DVI, 1x S-Video

No outputs

DirectX

10.1 (10_1)

11.2 (11_0)

OpenCL

1.1

1.2

OpenGL

3.3

4.4

Shader Model

4.1

5.0

Vulkan

N/A