GeForce GT 640 OEM Rebrand and Radeon RX Vega 64 Liquid Cooling - video card comparison

GeForce GT 640 OEM Rebrand

Radeon RX Vega 64 Liquid Cooling

Architecture

Fermi 2.0 (2010−2014)

GCN 5.0 (2017−2020)

GPU code name

GF116

Vega 10

Market segment

Desktop

Release date

April 2012

August 2017

Interface

PCIe 2.0 x16

PCIe 3.0 x16

Supplementary power connectors

None

2x 8-pin

Boost clock speed

1668 MHz

Core clock speed

720 MHz

1408 MHz

Floating-point performance

414.7 gflops

14,336 gflops

Manufacturing process technology

40 nm

14 nm

Number of transistors

1,170 million

12,500 million

Pipelines / CUDA cores

144

4096

Power consumption (TDP)

75 Watt

345 Watt

Texture fill rate

17.28

427.0

Memory type

DDR3

HBM2

Maximum RAM amount

1536 MB

8 GB

Memory bus width

192 Bit

2048 Bit

Memory clock speed

1600 MHz

1890 MHz

Memory bandwidth

38.4 GB/s

483.8 GB/s

Display Connectors

2x DVI, 1x mini-HDMI

1x HDMI, 3x DisplayPort

HDMI

DirectX

12 (11_0)

12 (12_1)

CUDA

2.1

OpenCL

1.1

2.0

OpenGL

4.6

Shader Model

5.1

6.4

Vulkan

N/A

1.1.125