GeForce GTX 1660 Ti Mobile and GeForce GT 640 OEM Rebrand - video card comparison

GeForce GTX 1660 Ti Mobile

GeForce GT 640 OEM Rebrand

Architecture

Turing (2018−2021)

Fermi 2.0 (2010−2014)

GPU code name

N18E-G0

GF116

Market segment

Laptop

Desktop

Release date

April 2019

April 2012

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

None

Boost clock speed

1590 MHz

Core clock speed

1455 MHz

720 MHz

Floating-point performance

414.7 gflops

Manufacturing process technology

12 nm

40 nm

Number of transistors

6,600 million

1,170 million

Pipelines / CUDA cores

1536

144

Power consumption (TDP)

80 Watt

75 Watt

Texture fill rate

152.6

17.28

Memory type

GDDR6

DDR3

Maximum RAM amount

6 GB

1536 MB

Memory bus width

192 Bit

Memory clock speed

12000 MHz

1600 MHz

Memory bandwidth

288.0 GB/s

38.4 GB/s

Shared memory

Display Connectors

No outputs

2x DVI, 1x mini-HDMI

HDMI

DirectX

12 (12_1)

12 (11_0)

CUDA

7.5

2.1

OpenCL

1.2

1.1

OpenGL

4.6

Shader Model

6.5

5.1

Vulkan

1.2.131

N/A