Radeon HD 8490 OEM and Radeon HD 3850 X3 - video card comparison

Radeon HD 8490 OEM

Radeon HD 3850 X3

Architecture

TeraScale 2 (2009−2015)

TeraScale (2005−2013)

GPU code name

Caicos

RV670

Market segment

Desktop

Release date

July 2013

Interface

PCIe 2.0 x16

Supplementary power connectors

None

1x 8-pin

Core clock speed

875 MHz

669 MHz

Floating-point performance

280.0 gflops

Manufacturing process technology

40 nm

55 nm

Number of transistors

370 million

666 million

Pipelines / CUDA cores

160

320

Power consumption (TDP)

35 Watt

145 Watt

Texture fill rate

7.000

10.70

Memory type

DDR3

GDDR3

Maximum RAM amount

1 GB

512 MB

Memory bus width

64 Bit

256 Bit

Memory clock speed

1800 MHz

1700 MBps

Memory bandwidth

14.4 GB/s

54.4 GB/s

Display Connectors

1x DVI, 1x DisplayPort

4x DVI

DirectX

11.2 (11_0)

10.1 (10_1)

OpenCL

1.2

N/A

OpenGL

4.4

3.3 (full) Shader Model5.04.1

Vulkan

N/A