Radeon R7 250X and C77 - video card comparison

Radeon R7 250X

C77

Architecture

GCN 1.0 (2012−2020)

Tesla (2006−2010)

GPU code name

Cape Verde

C77

Market segment

Desktop

Desktop

Release date

February 2014

-

Bus support

PCIe 3.0

-

Interface

PCIe 3.0 x16

-

Supplementary power connectors

1 x 6-pin

-

Boost clock speed

1000 MHz

-

Floating-point performance

1,216 gflops

-

Manufacturing process technology

28 nm

80 nm

Number of transistors

1,500 million

210 million

Pipelines / CUDA cores

640

16

Power consumption (TDP)

80 Watt

-

Texture fill rate

38.00

-

Memory type

GDDR5

-

Maximum RAM amount

2 GB

-

Memory bus width

128 Bit

-

Memory clock speed

1625 MHz

-

Memory bandwidth

96 GB/s

-

Display Connectors

1x DVI, 1x HDMI, 2x mini-DisplayPort

-

Eyefinity

1

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 12

11.1 (10_0)

Mantle

-

-

OpenCL

1.2

N/A

OpenGL

4.6

3.3

Shader Model

5.1

4.0

Vulkan

-

N/A

AppAcceleration

-

-

CrossFire

1

-

DDMA audio

+

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

-

-

PureVideo HD

-

VP3

TrueAudio

-

-

ZeroCore

-

-