Cayman and Radeon HD 7770M - video card comparison

Cayman

Radeon HD 7770M

Architecture

TeraScale 3 (2010−2013)

GCN (2011−2017)

GPU code name

Cayman

Chelsea XT

Market segment

Desktop

Laptop

Release date

-

April 2012

Interface

-

PCIe 2.0 x16

Core clock speed

-

675 MHz

Floating-point performance

-

691.2 gflops

Manufacturing process technology

40 nm

28 nm

Number of transistors

2,640 million

1,500 million

Pipelines / CUDA cores

1536

512

Power consumption (TDP)

-

32 Watt

Texture fill rate

-

21.60

Memory type

-

GDDR5

Maximum RAM amount

-

1 GB

Memory bus width

-

128 Bit

Memory clock speed

-

4000 MHz

Memory bandwidth

-

64 GB/s

Shared memory

-

-

Display Connectors

-

No outputs

DirectX

11.2 (11_0)

12 (11_1)

OpenCL

1.2

1.2

OpenGL

4.4

4.6

Shader Model

5.0

5.1

Vulkan

N/A

1.2.131