GeForce 840A vs GeForce GTX 850A

If you are going to buy a new graphics card and are choosing between GeForce 840A and GeForce GTX 850A, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce 840A stacks up against GeForce GTX 850A, check out specs charts below.
GeForce 840A
GeForce GTX 850A

Main Specs

  GeForce 840A GeForce GTX 850A
Power consumption (TDP) 33 Watt 45 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Memory type DDR3 DDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
 
  • GeForce GTX 850A has 36% more power consumption, than GeForce 840A.
  • GeForce 840A is connected by PCIe 3.0 x8, and GeForce GTX 850A uses PCIe 3.0 x16 interface.
  • GeForce 840A and GeForce GTX 850A have maximum RAM of 2 GB.
  • Both cards are used in Desktops.
  • GeForce 840A and GeForce GTX 850A are build with Maxwell architecture.
  • Core clock speed of GeForce 840A is 127 MHz higher, than GeForce GTX 850A.
  • GeForce 840A and GeForce GTX 850A are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce 840A is 202 MHz higher, than GeForce GTX 850A.

Game benchmarks

high / 1080p 3−4 1−2
ultra / 1080p 2−3 0−1
QHD / 1440p 0−1 0−1
low / 720p 14−16 12−14
medium / 1080p 5−6 3−4
The average gaming FPS of GeForce 840A in Assassin's Creed Odyssey is 33% more, than GeForce GTX 850A.

Full Specs

  GeForce 840A GeForce GTX 850A
Architecture Maxwell Maxwell
Code name GM108 GM107
Type Desktop Desktop
Release date 17 March 2014 17 March 2014
Pipelines 384 640
Core clock speed 1029 MHz 902 MHz
Boost Clock 1124 MHz 936 MHz
Transistor count 1,870 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 37.44
Floating-point performance 863.2 gflops 1,198 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 2002 MHz 1800 MHz
Memory bandwidth 16.02 GB/s 28.8 GB/s
DirectX 12 (11_0) 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.1.126
CUDA 5.0 5.0