GeForce 840A and Tesla M4 - video card comparison
GeForce 840A
Tesla M4
Architecture
Maxwell (2014−2018)
Maxwell 2.0 (2015−2019)
GPU code name
GM108
GM206
Market segment
Desktop
Workstation
Release date
March 2014
November 2015
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Boost clock speed
1124 MHz
1072 MHz
Core clock speed
1029 MHz
872 MHz
Floating-point performance
863.2 gflops
2,195 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
-
2,940 million
Pipelines / CUDA cores
384
1024
Power consumption (TDP)
33 Watt
50 Watt
Texture fill rate
17.98
68.61
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
2002 MHz
5500 MHz
Memory bandwidth
16.02 GB/s
88 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_1)
CUDA
5.0
5.2
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.1.126