Radeon HD 6930 and GeForce 945A - video card comparison

Radeon HD 6930

GeForce 945A

Architecture

TeraScale 3 (2010−2013)

Maxwell (2014−2018)

GPU code name

Cayman

GM108

Market segment

Desktop

Desktop

Release date

December 2011

March 2015

Interface

PCIe 2.0 x16

PCIe 3.0 x8

Supplementary power connectors

2x 6-pin

-

Boost clock speed

-

1189 MHz

Core clock speed

750 MHz

1072 MHz

Floating-point performance

1,920.0 gflops

903.2 gflops

Manufacturing process technology

40 nm

28 nm

Number of transistors

2,640 million

-

Pipelines / CUDA cores

1280

384

Power consumption (TDP)

186 Watt

33 Watt

Texture fill rate

60.00

28.54

Memory type

GDDR5

GDDR5

Maximum RAM amount

1 GB

1 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

4800 MHz

5012 MHz

Memory bandwidth

153.6 GB/s

40.1 GB/s

Display Connectors

2x DVI, 1x HDMI, 2x mini-DisplayPort

No outputs

HDMI

+

-

DirectX

11.2 (11_0)

12 (11_0)

CUDA

-

5.0

OpenCL

1.2

1.2

OpenGL

4.4

4.6

Shader Model

5.0

5.1

Vulkan

N/A

1.1.126