GeForce 840A vs GeForce GT 545

If you are going to buy a new graphics card and are choosing between GeForce 840A and GeForce GT 545, 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 GT 545, check out specs charts below.
GeForce 840A
GeForce GT 545

Main Specs

  GeForce 840A GeForce GT 545
Power consumption (TDP) 33 Watt 70 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors None
Memory type DDR3 DDR3
Maximum RAM amount 2 GB 1536 MB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x VGA
 
  • GeForce GT 545 has 112% more power consumption, than GeForce 840A.
  • GeForce 840A is connected by PCIe 3.0 x8, and GeForce GT 545 uses PCIe 2.0 x16 interface.
  • GeForce GT 545 has 1534 GB more memory, than GeForce 840A.
  • Both cards are used in Desktops.
  • GeForce 840A is build with Maxwell architecture, and GeForce GT 545 - with Fermi 2.0.
  • Core clock speed of GeForce 840A is 309 MHz higher, than GeForce GT 545.
  • GeForce 840A is manufactured by 28 nm process technology, and GeForce GT 545 - by 40 nm process technology.
  • Memory clock speed of GeForce 840A is 402 MHz higher, than GeForce GT 545.

Game benchmarks

high / 1080p 3−4 2−3
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 GT 545.

Full Specs

  GeForce 840A GeForce GT 545
Architecture Maxwell Fermi 2.0
Code name GM108 GF116
Type Desktop Desktop
Release date 17 March 2014 14 May 2011
Pipelines 384 144
Core clock speed 1029 MHz 720 MHz
Boost Clock 1124 MHz
Transistor count 1,170 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 17.98 17.28
Floating-point performance 863.2 gflops 414.7 gflops
Length 145 mm
Memory bus width 64 Bit 192 Bit
Memory clock speed 2002 MHz 1600 MHz
Memory bandwidth 16.02 GB/s 38.4 GB/s
DirectX 12 (11_0) 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA 5.0 2.1
Bitcoin / BTC (SHA256) 35 Mh/s