Quadro K620 and Radeon Sky 900 - video card comparison

Quadro K620

Radeon Sky 900

Architecture

Maxwell (2014−2018)

GCN 1.0 (2012−2020)

GPU code name

GM107

Tahiti

Market segment

Workstation

Desktop

Release date

July 2014

March 2013

Bus support

-

PCIe 3.0

Interface

PCIe 2.0 x16

PCIe 3.0 x16

Supplementary power connectors

None

2x 8-pin

Boost clock speed

1124 MHz

950 MHz

Core clock speed

1058 MHz

825 MHz

Floating-point performance

863.2 gflops

2x 3,405 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

1,870 million

4,313 million

Pipelines / CUDA cores

384

3584

Power consumption (TDP)

41 Watt

300 Watt

Texture fill rate

26.98

106.4

Memory type

128 Bit

GDDR5

Maximum RAM amount

2 GB

6 GB

Memory bus width

128 Bit

384 Bit

Memory clock speed

1800 MHz

5000 MHz

Memory bandwidth

Up to 29 GB/s

480 GB/s

Display Connectors

DVI-I DP

1x DVI, 1x mini-DisplayPort

Number of simultaneous displays

4

-

Dual-link DVI support

-

1

DirectX

12

12 (11_1)

CUDA

5.0

-

OpenCL

1.2

1.2

OpenGL

4.5

4.6

Shader Model

5

5.1

Vulkan

+

1.2.131

3D Vision Pro

+

-

Mosaic

+

-

nView Desktop Management

+

-