GeForce GTX 1070 Ti and GeForce GT 640 - video card comparison
Passmark - benchmark score GeForce GTX 1070 Ti vs GeForce GT 640
GeForce GTX 1070 Ti
15123
GeForce GT 640
1209
GeForce GTX 1070 Ti
GeForce GT 640
Architecture
Pascal (2016−2021)
Kepler (2012−2018)
GPU code name
Pascal GP104
GK107
Market segment
Desktop
Desktop
Release date
November 2017
June 2012
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1683 MHz
-
Core clock speed
1607 MHz
902 MHz
Floating-point performance
8,186 gflops
692.7 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
7,200 million
1,270 million
Pipelines / CUDA cores
2432
384
Power consumption (TDP)
180 Watt
65 Watt
Texture fill rate
255.8
28.86
Memory type
GDDR5
DDR3
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
8000 MHz
1782 MHz
Memory bandwidth
256.3 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
+
-