Quadro K420 and Radeon HD 8490 OEM - video card comparison

Quadro K420

Radeon HD 8490 OEM

Architecture

Kepler (2012−2018)

TeraScale 2 (2009−2015)

GPU code name

GK107

Caicos

Market segment

Workstation

Desktop

Release date

July 2014

July 2013

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

None

None

Core clock speed

876 MHz

875 MHz

Floating-point performance

336.4 gflops

280.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

1,270 million

370 million

Pipelines / CUDA cores

192

160

Power consumption (TDP)

41 Watt

35 Watt

Texture fill rate

14.02

7.000

Memory type

128 Bit

DDR3

Maximum RAM amount

1 GB/2 GB

1 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

1782 MHz

1800 MHz

Memory bandwidth

Up to 29 GB/s

14.4 GB/s

Display Connectors

DVI-I DP

1x DVI, 1x DisplayPort

Number of simultaneous displays

4

-

DirectX

12

11.2 (11_0)

CUDA

3.0

-

OpenCL

1.2

1.2

OpenGL

4.5

4.4

Shader Model

5

5.0

Vulkan

+

N/A

3D Vision Pro

+

-

Mosaic

+

-

nView Desktop Management

+

-