GeForce 840A vs P104 100

Find out if it is worth upgrading your current GPU setup by comparing GeForce 840A and P104 100. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce 840A and P104 100. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
GeForce 840A
P104 100

Main Specs

  GeForce 840A P104 100
Power consumption (TDP) 33 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors 1x 8-pin
Memory type DDR3 GDDR5X
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs No outputs
 
  • GeForce 840A is connected by PCIe 3.0 x8, and P104 100 uses PCIe 3.0 x16 interface.
  • P104 100 has 2 GB more memory, than GeForce 840A.
  • Both cards are used in Desktops.
  • GeForce 840A is build with Maxwell architecture, and P104 100 - with Pascal.
  • Core clock speed of P104 100 is 578 MHz higher, than GeForce 840A.
  • GeForce 840A is manufactured by 28 nm process technology, and P104 100 - by 16 nm process technology.
  • Memory clock speed of P104 100 is 8006 MHz higher, than GeForce 840A.

Game benchmarks

high / 1080p 3−4 35−40
ultra / 1080p 2−3 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 14−16 60−65
medium / 1080p 5−6 40−45
The average gaming FPS of P104 100 in Assassin's Creed Odyssey is 583% more, than GeForce 840A.

Full Specs

  GeForce 840A P104 100
Architecture Maxwell Pascal
Code name GM108 GP104
Type Desktop Desktop
Release date 17 March 2014 12 December 2017
Pipelines 384 1920
Core clock speed 1029 MHz 1607 MHz
Boost Clock 1124 MHz 1733 MHz
Transistor count 7,200 million
Manufacturing process technology 28 nm 16 nm
Texture fill rate 17.98 208.0
Floating-point performance 863.2 gflops 8,873 gflops
Length 267 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 2002 MHz 10008 MHz
Memory bandwidth 16.02 GB/s 320.3 GB/s
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA 5.0 6.1