GeForce GTX 645 OEM and Radeon RX 570 X2 - video card comparison

GeForce GTX 645 OEM

Radeon RX 570 X2

Architecture

Kepler (2012−2018)

GCN 4.0 (2016−2020)

GPU code name

GK106

Polaris 20

Market segment

Desktop

Release date

April 2013

Interface

PCIe 3.0 x16

Supplementary power connectors

None

2x 8-pin

Boost clock speed

1206 MHz

Core clock speed

824 MHz

Floating-point performance

949.2 gflops

Manufacturing process technology

28 nm

14 nm

Number of transistors

2,540 million

5,700 million

Pipelines / CUDA cores

576

2048

Power consumption (TDP)

65 Watt

180 Watt

Texture fill rate

39.55

154.4

Memory type

GDDR5

Maximum RAM amount

1 GB

8 GB

Memory bus width

128 Bit

256 Bit

Memory clock speed

4000 MHz

8.4 GB/s

Memory bandwidth

64 GB/s

268.8 GB/s

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

1x HDMI 2.0b

HDMI

DirectX

12 (11_0)

12 (12_0)

CUDA

3.0

OpenCL

1.2

2.1

OpenGL

4.6

Shader Model

5.1

6.7

Vulkan

1.1.126

1.3