GeForce GTX 1080 11Gbps and Radeon HD 6450 OEM - video card comparison

GeForce GTX 1080 11Gbps

Radeon HD 6450 OEM

Architecture

Pascal (2016−2021)

TeraScale 2 (2009−2015)

GPU code name

GP104

Caicos

Market segment

Desktop

Release date

April 2017

February 2011

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 8-pin

None

Boost clock speed

1733 MHz

Core clock speed

1607 MHz

625 MHz

Floating-point performance

8,873 gflops

200 gflops

Manufacturing process technology

16 nm

40 nm

Number of transistors

7,200 million

370 million

Pipelines / CUDA cores

2560

160

Power consumption (TDP)

180 Watt

18 Watt

Texture fill rate

277.3

5.000

Memory type

GDDR5X

GDDR3

Maximum RAM amount

8 GB

512 MB

Memory bus width

256 Bit

64 Bit

Memory clock speed

11008 MHz

1066 MHz

Memory bandwidth

352.3 GB/s

8.528 GB/s

Display Connectors

1x DVI, 1x HDMI, 3x DisplayPort

1x DVI, 1x HDMI, 1x VGA

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