Radeon HD 7550M and Radeon HD 4750 - video card comparison

Radeon HD 7550M

Radeon HD 4750

Architecture

Terascale 2 (2009−2015)

TeraScale (2005−2013)

GPU code name

Thames-LP / Pro

RV740

Market segment

Laptop

Desktop

Release date

January 2012

September 2009

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

-

1x 6-pin

Boost clock speed

550 MHz

-

Core clock speed

450 MHz

730 MHz

Floating-point performance

480.0 gflops

934.4 gflops

Manufacturing process technology

40 nm

40 nm

Number of transistors

716 million

826 million

Pipelines / CUDA cores

400

640

Power consumption (TDP)

14 Watt

100 Watt

Texture fill rate

12.00

23.36

Memory type

GDDR5 / DDR3

GDDR5

Maximum RAM amount

1 GB

512 MB

Memory bus width

64 Bit

128 Bit

Memory clock speed

3200 / 1800 MHz

3200 MHz

Memory bandwidth

28.8 GB/s

51.2 GB/s

Shared memory

-

-

Display Connectors

No outputs

2x DVI, 1x S-Video

DirectX

11.2 (11_0)

10.1 (10_1)

OpenCL

1.2

1.1

OpenGL

4.4

3.3

Shader Model

5.0

4.1

Vulkan

N/A

N/A