GeForce 820A vs GeForce GTX 780M

In this comparison between GeForce 820A and GeForce GTX 780M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 820A will be the best choice, for others GeForce GTX 780M will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 780M is a Laptop Graphics Card

Note: GeForce GTX 780M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GTX 780M here:

Main Specs

  GeForce 820A GeForce GTX 780M
Power consumption (TDP) 15 Watt 122 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors No outputs No outputs
  Check Price
  • GeForce GTX 780M has 713% more power consumption, than GeForce 820A.
  • GeForce 820A is connected by PCIe 2.0 x16, and GeForce GTX 780M uses MXM-B (3.0) interface.
  • GeForce GTX 780M has 3 GB more memory, than GeForce 820A.
  • GeForce 820A is used in Desktops, and GeForce GTX 780M - in Laptops.
  • GeForce 820A is build with Fermi 2.0 architecture, and GeForce GTX 780M - with Kepler.
  • Core clock speed of GeForce GTX 780M is 48 MHz higher, than GeForce 820A.
  • GeForce 820A and GeForce GTX 780M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 780M is 700 MHz higher, than GeForce 820A.

Game benchmarks

high / 1080p 0−1 20−22
ultra / 1080p 12−14
QHD / 1440p 0−1 6−7
4K / 2160p 5−6
low / 720p 1−2 40−45
medium / 1080p 0−1 24−27
The average gaming FPS of GeForce GTX 780M in Assassin's Creed Odyssey is 4100% more, than GeForce 820A.

Full Specs

  GeForce 820A GeForce GTX 780M
Architecture Fermi 2.0 Kepler
Code name GF117 N14E-GTX
Type Desktop Laptop
Release date 17 March 2014 30 May 2013
Pipelines 96 1536
Core clock speed 775 MHz 823 MHz
Boost Clock 797 MHz
Transistor count 585 million 3,540 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 12.40 102.0
Floating-point performance 297.6 gflops 2,448 gflops
Memory bus width 64 Bit 256 Bit
Memory clock speed 1800 MHz 2500 MHz
Memory bandwidth 14.4 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 API
Shader Model 5.1 5.1
OpenGL 4.6 4.5
OpenCL 1.1 1.1
Vulkan N/A 1.1.126
CUDA 2.1 +
CUDA cores 1536
Bus support PCI Express 3.0, PCI Express 2.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 82 Mh/s
Laptop size large
Standard memory configuration GDDR5
eDP 1.2 signal support Up to 3840x2160
LVDS signal support Up to 1920x1200
DisplayPort Multimode (DP++) support Up to 3840x2160
HDCP content protection +
7.1 channel HD audio on HDMI +
TrueHD and DTS-HD audio bitstreaming +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
Blu-Ray 3D Support +
3D Vision / 3DTV Play +
  Check Price