GeForce GTX 1080 11Gbps and Radeon HD 6990M Rebrand - video card comparison

GeForce GTX 1080 11Gbps

Radeon HD 6990M Rebrand

Architecture

Pascal (2016−2021)

TeraScale 2 (2009−2015)

GPU code name

GP104

Broadway

Market segment

Desktop

Release date

April 2017

July 2011

Interface

PCIe 3.0 x16

MXM-B (3.0)

Supplementary power connectors

1x 8-pin

Boost clock speed

1733 MHz

Core clock speed

1607 MHz

800 MHz

Floating-point performance

8,873 gflops

1,280.0 gflops

Manufacturing process technology

16 nm

40 nm

Number of transistors

7,200 million

1,040 million

Pipelines / CUDA cores

2560

800

Power consumption (TDP)

180 Watt

100 Watt

Texture fill rate

277.3

32.00

Memory type

GDDR5X

GDDR5

Maximum RAM amount

8 GB

1 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

11008 MHz

4400 MHz

Memory bandwidth

352.3 GB/s

70.4 GB/s

Display Connectors

1x DVI, 1x HDMI, 3x DisplayPort

No outputs

HDMI

DirectX

12 (12_1)

11.2 (11_0)

CUDA

6.1

OpenCL

1.2

OpenGL

4.6

4.4

Shader Model

6.4

5.0

Vulkan

1.2.131

N/A