Quadro K620 and Radeon HD 2900 XTX - video card comparison

Quadro K620

Radeon HD 2900 XTX

Architecture

Maxwell (2014−2018)

TeraScale (2005−2013)

GPU code name

GM107

R600

Market segment

Workstation

Desktop

Release date

July 2014

-

Interface

PCIe 2.0 x16

PCIe 1.0 x16

Supplementary power connectors

None

2x 6-pin

Boost clock speed

1124 MHz

-

Core clock speed

1058 MHz

743 MHz

Floating-point performance

863.2 gflops

-

Manufacturing process technology

28 nm

80 nm

Number of transistors

1,870 million

720 million

Pipelines / CUDA cores

384

320

Power consumption (TDP)

41 Watt

240 Watt

Texture fill rate

26.98

11.89

Memory type

128 Bit

GDDR3

Maximum RAM amount

2 GB

512 MB

Memory bus width

128 Bit

512 Bit

Memory clock speed

1800 MHz

1656 MBps

Memory bandwidth

Up to 29 GB/s

106.0 GB/s

Display Connectors

DVI-I DP

2x DVI, 1x S-Video

Number of simultaneous displays

4

-

DirectX

12

10.0 (10_0)

CUDA

5.0

-

OpenCL

1.2

N/A

OpenGL

4.5

3.3 (full) Shader Model54.0

Vulkan

+

N/A

3D Vision Pro

+

-

Mosaic

+

-

nView Desktop Management

+

-