Radeon HD 4890 and Radeon HD 6570M Mac Edition - video card comparison

Radeon HD 4890

Radeon HD 6570M Mac Edition

Architecture

TeraScale (2005−2013)

TeraScale 2 (2009−2015)

GPU code name

RV790

Capilano

Market segment

Desktop

Release date

April 2009

October 2009

Interface

PCIe 2.0 x16

MXM-II

Supplementary power connectors

2x 6-pin

Core clock speed

850 MHz

600 MHz

Floating-point performance

1,360.0 gflops

480.0 gflops

Manufacturing process technology

55 nm

40 nm

Number of transistors

959 million

627 million

Pipelines / CUDA cores

800

400

Power consumption (TDP)

190 Watt

30 Watt

Texture fill rate

34.00

12.00

Memory type

GDDR5

GDDR3

Maximum RAM amount

1 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

3900 MHz

1600 MHz

Memory bandwidth

124.8 GB/s

25.6 GB/s

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