Radeon HD 4870 Mac Edition and RSX-90nm - video card comparison

Radeon HD 4870 Mac Edition

RSX-90nm

Architecture

TeraScale (2005−2013)

Curie (2003−2013)

GPU code name

RV770

RSX-90nm

Market segment

Desktop

Release date

January 2009

Interface

PCIe 2.0 x16

Supplementary power connectors

2x 6-pin

Core clock speed

750 MHz

Floating-point performance

1,200.0 gflops

Manufacturing process technology

55 nm

90 nm

Number of transistors

956 million

300 million

Pipelines / CUDA cores

800

Power consumption (TDP)

150 Watt

Texture fill rate

30.00

Memory type

GDDR5

Maximum RAM amount

512 MB

Memory bus width

256 Bit

Memory clock speed

3400 MHz

Memory bandwidth

108.8 GB/s

Display Connectors

1x DVI, 1x mini-DisplayPort

DirectX

10.1 (10_1)

N/A

OpenCL

1.1

N/A

OpenGL

3.3

ES 1.1

Shader Model

4.1

Vulkan

N/A