GeForce 840A and GeForce GTS 240 OEM - video card comparison
GeForce 840A
GeForce GTS 240 OEM
Architecture
Maxwell (2014−2018)
Tesla (2006−2010)
GPU code name
GM108
G92B
Market segment
Desktop
Desktop
Release date
March 2014
July 2009
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin
Boost clock speed
1124 MHz
-
Core clock speed
1029 MHz
675 MHz
Floating-point performance
863.2 gflops
362.9 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
-
754 million
Pipelines / CUDA cores
384
112
Power consumption (TDP)
33 Watt
120 Watt
Texture fill rate
17.98
37.80
Memory type
DDR3
GDDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
64 Bit
256 Bit
Memory clock speed
2002 MHz
2200 MHz
Memory bandwidth
16.02 GB/s
70.4 GB/s
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
12 (11_0)
11.1 (10_0)
CUDA
5.0
1.1
OpenCL
1.2
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A