GeForce GTX 1660 Ti and GeForce GT 640 - video card comparison
Passmark - benchmark score GeForce GTX 1660 Ti vs GeForce GT 640
GeForce GTX 1660 Ti
13314
GeForce GT 640
1209
GeForce GTX 1660 Ti
GeForce GT 640
Architecture
Turing (2018−2021)
Kepler (2012−2018)
GPU code name
Turing TU116
GK107
Market segment
Desktop
Desktop
Release date
February 2019
June 2012
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1770 MHz
-
Core clock speed
1500 MHz
902 MHz
Floating-point performance
-
692.7 gflops
Manufacturing process technology
12 nm
28 nm
Number of transistors
6,600 million
1,270 million
Pipelines / CUDA cores
1536
384
Power consumption (TDP)
120 Watt
65 Watt
Texture fill rate
169.9
28.86
Memory type
GDDR6
DDR3
Maximum RAM amount
6 GB
2 GB
Memory bus width
192 Bit
128 Bit
Memory clock speed
12000 MHz
1782 MHz
Memory bandwidth
288.0 GB/s
28.51 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (12_1)
12 (11_0)
CUDA
7.5
3.0
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
6.5
5.1
Vulkan
1.2.131
1.1.126