GeForce GTX 1060 6 GB and GeForce GT 640 OEM - video card comparison
GeForce GTX 1060 6 GB
GeForce GT 640 OEM
Architecture
Pascal (2016−2021)
Kepler (2012−2018)
GPU code name
GP106
GK107
Market segment
Desktop
Desktop
Release date
July 2016
April 2012
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
1708 MHz
-
Core clock speed
1506 MHz
797 MHz
Floating-point performance
4,375 gflops
612.1 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
4,400 million
1,270 million
Pipelines / CUDA cores
1280
384
Power consumption (TDP)
120 Watt
50 Watt
Texture fill rate
136.7
25.50
Memory type
GDDR5
DDR3
Maximum RAM amount
6 GB
2 GB
Memory bus width
192 Bit
128 Bit
Memory clock speed
8000 MHz
1782 MHz
Memory bandwidth
192.2 GB/s
28.51 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 3x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
G-SYNC support
+
-
DirectX
12 (12_1)
12 (11_0)
CUDA
6.1
3.0
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.1.126
VR Ready
+
-