GeForce GTX 1080 11Gbps and Radeon HD 2950 PRO - video card comparison

GeForce GTX 1080 11Gbps

Radeon HD 2950 PRO

Architecture

Pascal (2016−2021)

TeraScale (2005−2013)

GPU code name

GP104

RV670

Market segment

Desktop

Release date

April 2017

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 8-pin

1x 6-pin

Boost clock speed

1733 MHz

Core clock speed

1607 MHz

600 MHz

Floating-point performance

8,873 gflops

Manufacturing process technology

16 nm

55 nm

Number of transistors

7,200 million

666 million

Pipelines / CUDA cores

2560

320

Power consumption (TDP)

180 Watt

75 Watt

Texture fill rate

277.3

9.600

Memory type

GDDR5X

GDDR3

Maximum RAM amount

8 GB

256 MB

Memory bus width

256 Bit

Memory clock speed

11008 MHz

1200 MBps

Memory bandwidth

352.3 GB/s

38.4 GB/s

Display Connectors

1x DVI, 1x HDMI, 3x DisplayPort

2x DVI, 1x S-Video

HDMI

DirectX

12 (12_1)

10.1 (10_1)

CUDA

6.1

OpenCL

1.2

N/A

OpenGL

4.6

3.3 (full) Shader Model6.44.1

Vulkan

1.2.131

N/A