Radeon HD 4770 and Radeon HD 8490 OEM - video card comparison

Radeon HD 4770

Radeon HD 8490 OEM

Architecture

TeraScale (2005−2013)

TeraScale 2 (2009−2015)

GPU code name

RV740

Caicos

Market segment

Desktop

Release date

April 2009

July 2013

Interface

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

None

Core clock speed

750 MHz

875 MHz

Floating-point performance

960.0 gflops

280.0 gflops

Manufacturing process technology

40 nm

Number of transistors

826 million

370 million

Pipelines / CUDA cores

640

160

Power consumption (TDP)

80 Watt

35 Watt

Texture fill rate

24.00

7.000

Memory type

GDDR5

DDR3

Maximum RAM amount

512 MB

1 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

3200 MHz

1800 MHz

Memory bandwidth

51.2 GB/s

14.4 GB/s

Display Connectors

2x DVI, 1x S-Video

1x DVI, 1x DisplayPort

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