Quadro P400 and GeForce GT 640 - video card comparison
Passmark - benchmark score Quadro P400 vs GeForce GT 640
Quadro P400
1690
GeForce GT 640
1209
Quadro P400
GeForce GT 640
Architecture
Pascal (2016−2021)
Kepler (2012−2018)
GPU code name
GP107
GK107
Market segment
Workstation
Desktop
Release date
February 2017
June 2012
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
None
Boost clock speed
1252 MHz
-
Core clock speed
1228 MHz
902 MHz
Floating-point performance
679.9 gflops
692.7 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,300 million
1,270 million
Pipelines / CUDA cores
256
384
Power consumption (TDP)
30 Watt
65 Watt
Texture fill rate
20.03
28.86
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
4008 MHz
1782 MHz
Memory bandwidth
32.06 GB/s
28.51 GB/s
Display Connectors
3x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
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