GeForce GT 640 and GeForce GTX 1660 - video card comparison
Passmark - benchmark score GeForce GT 640 vs GeForce GTX 1660
GeForce GT 640
1210
GeForce GTX 1660
12040
GeForce GT 640
GeForce GTX 1660
Architecture
Kepler (2012−2018)
Turing (2018−2021)
GPU code name
GK107
Turing TU116
Market segment
Desktop
Desktop
Release date
June 2012
March 2019
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
1x 8-pin
Boost clock speed
-
1785 MHz
Core clock speed
902 MHz
1530 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
1,270 million
6,600 million
Pipelines / CUDA cores
384
1408
Power consumption (TDP)
65 Watt
120 Watt
Texture fill rate
28.86
157.1
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
6 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
1782 MHz
8000 MHz
Memory bandwidth
28.51 GB/s
192.1 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
7.5
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2.131