GeForce GTX 1660 Super and GeForce GT 645 OEM - video card comparison
GeForce GTX 1660 Super
GeForce GT 645 OEM
Architecture
Turing (2018−2021)
Fermi 2.0 (2010−2014)
GPU code name
Turing TU116
GF114
Market segment
Desktop
Desktop
Release date
October 2019
April 2012
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 8-pin
-
Boost clock speed
1785 MHz
-
Core clock speed
1530 MHz
776 MHz
Floating-point performance
-
894.0 gflops
Manufacturing process technology
12 nm
40 nm
Number of transistors
6,600 million
1,950 million
Pipelines / CUDA cores
1408
288
Power consumption (TDP)
125 Watt
102 Watt
Texture fill rate
157.1
37.25
Memory type
GDDR6
GDDR5
Maximum RAM amount
6 GB
1 GB
Memory bus width
192 Bit
192 Bit
Memory clock speed
14000 MHz
3828 MHz
Memory bandwidth
336.0 GB/s
91.87 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x mini-HDMI
HDMI
+
+
HDCP
+
-
G-SYNC support
+
-
DirectX
12 (12_1)
12 (11_0)
CUDA
7.5
2.1
OpenCL
1.2
1.1
OpenGL
4.6
4.6
Shader Model
6.5
5.1
Vulkan
1.2.131
N/A
Ansel
+
-
NVENC
+
-