GeForce 945A and Radeon HD 4750 - video card comparison

GeForce 945A

Radeon HD 4750

Architecture

Maxwell (2014−2018)

TeraScale (2005−2013)

GPU code name

GM108

RV740

Market segment

Desktop

Desktop

Release date

March 2015

September 2009

Interface

PCIe 3.0 x8

PCIe 2.0 x16

Supplementary power connectors

-

1x 6-pin

Boost clock speed

1189 MHz

-

Core clock speed

1072 MHz

730 MHz

Floating-point performance

903.2 gflops

934.4 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

-

826 million

Pipelines / CUDA cores

384

640

Power consumption (TDP)

33 Watt

100 Watt

Texture fill rate

28.54

23.36

Memory type

GDDR5

GDDR5

Maximum RAM amount

1 GB

512 MB

Memory bus width

64 Bit

128 Bit

Memory clock speed

5012 MHz

3200 MHz

Memory bandwidth

40.1 GB/s

51.2 GB/s

Display Connectors

No outputs

2x DVI, 1x S-Video

DirectX

12 (11_0)

10.1 (10_1)

CUDA

5.0

-

OpenCL

1.2

1.1

OpenGL

4.6

3.3

Shader Model

5.1

4.1

Vulkan

1.1.126

N/A