Radeon HD 7770M and Radeon R7 240 - video card comparison

Radeon HD 7770M

Radeon R7 240

Architecture

GCN (2011−2017)

GCN 1.0 (2012−2020)

GPU code name

Chelsea XT

Oland

Market segment

Laptop

Desktop

Release date

April 2012

October 2013

Bus support

-

PCIe 3.0

Interface

PCIe 2.0 x16

PCIe 3.0 x8

Supplementary power connectors

-

N/A

Boost clock speed

-

780 MHz

Core clock speed

675 MHz

-

Floating-point performance

691.2 gflops

499.2 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

1,500 million

950 million

Pipelines / CUDA cores

512

320

Power consumption (TDP)

32 Watt

50 Watt

Texture fill rate

21.60

14.00

Memory type

GDDR5

GDDR5

Maximum RAM amount

1 GB

2 GB

Memory bus width

128 Bit

128 Bit

Memory clock speed

4000 MHz

1150 MHz

Memory bandwidth

64 GB/s

72 GB/s

Shared memory

-

-

Display Connectors

No outputs

1x DVI, 1x HDMI, 1x VGA

HDMI

-

+

DisplayPort support

-

-

DirectX

12 (11_1)

DirectX® 12

Mantle

-

-

OpenCL

1.2

1.2

OpenGL

4.6

4.6

Shader Model

5.1

5.1

Vulkan

1.2.131

-

AppAcceleration

-

-

CrossFire

-

1

DDMA audio

-

+

Enduro

-

-

FreeSync

-

1

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-