Radeon R7 M275DX and Radeon HD 7770M - video card comparison

Radeon R7 M275DX

Radeon HD 7770M

Architecture

GCN (2011−2017)

GCN (2011−2017)

GPU code name

-

Chelsea XT

Market segment

Laptop

Laptop

Release date

June 2014

April 2012

Interface

-

PCIe 2.0 x16

Core clock speed

-

675 MHz

Floating-point performance

-

691.2 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

-

1,500 million

Pipelines / CUDA cores

896

512

Power consumption (TDP)

-

32 Watt

Texture fill rate

-

21.60

Memory type

DDR3

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

Eyefinity

+

-

DirectX

12

12 (11_1)

OpenCL

-

1.2

OpenGL

-

4.6

Shader Model

-

5.1

Vulkan

-

1.2.131

AppAcceleration

+

-