GeForce 840A and GeForce2 Go 100 - video card comparison
GeForce 840A
GeForce2 Go 100
Architecture
Maxwell (2014−2018)
Celsius (1999−2005)
GPU code name
GM108
NV11 B2
Market segment
Desktop
Desktop
Release date
March 2014
February 2001
Interface
PCIe 3.0 x8
AGP 4x
Boost clock speed
1124 MHz
-
Core clock speed
1029 MHz
125 MHz
Floating-point performance
863.2 gflops
-
Manufacturing process technology
28 nm
180 nm
Number of transistors
-
20 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
33 Watt
2 Watt
Texture fill rate
17.98
0.5
Memory type
DDR3
DDR
Maximum RAM amount
2 GB
16 MB
Memory bus width
64 Bit
32 Bit
Memory clock speed
2002 MHz
332 MHz
Memory bandwidth
16.02 GB/s
1.328 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
7.0
CUDA
5.0
-
OpenCL
1.2
N/A
OpenGL
4.6
1.2
Shader Model
5.1
-
Vulkan
1.1.126
N/A