Radeon HD 7770M and GeForce GT 540M - video card comparison

Radeon HD 7770M

GeForce GT 540M

Architecture

GCN (2011−2017)

Fermi (2010−2014)

GPU code name

Chelsea XT

N12P-GS

Market segment

Laptop

Laptop

Release date

April 2012

January 2011

Interface

PCIe 2.0 x16

MXM-A (3.0)

Core clock speed

675 MHz

672 MHz

CUDA cores

-

96

Floating-point performance

691.2 gflops

258.05 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

1,500 million

585 million

Pipelines / CUDA cores

512

96

Power consumption (TDP)

32 Watt

35 Watt

Texture fill rate

21.60

10.8 billion/sec

Memory type

GDDR5

DDR3

Maximum RAM amount

1 GB

2 GB

Memory bus width

128 Bit

128 Bit

Memory clock speed

4000 MHz

900 MHz

Memory bandwidth

64 GB/s

28.8 GB/s

Shared memory

-

-

Display Connectors

No outputs

No outputs

DirectX

12 (11_1)

12 API

CUDA

-

+

OpenCL

1.2

1.1

OpenGL

4.6

4.5

Shader Model

5.1

5.1

Vulkan

1.2.131

N/A

3D Blu-Ray

-

+

3D Gaming

-

+

Optimus

-

+