GeForce 820A vs Radeon HD 6790

In this comparison between GeForce 820A and Radeon HD 6790 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 Radeon HD 6790 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  GeForce 820A Radeon HD 6790
Power consumption (TDP) 15 Watt 150 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 2x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 1 GB 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6790 has 900% more power consumption, than GeForce 820A.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • GeForce 820A and Radeon HD 6790 have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • GeForce 820A is build with Fermi 2.0 architecture, and Radeon HD 6790 - with Terascale 2.
  • Core clock speed of Radeon HD 6790 is 65 MHz higher, than GeForce 820A.
  • GeForce 820A is manufactured by 28 nm process technology, and Radeon HD 6790 - by 40 nm process technology.
  • Memory clock speed of GeForce 820A is 750 MHz higher, than Radeon HD 6790.

Game benchmarks

high / 1080p 0−1 7−8
ultra / 1080p 4−5
QHD / 1440p 0−1 0−1
low / 720p 1−2 18−20
medium / 1080p 0−1 9−10
The average gaming FPS of Radeon HD 6790 in Assassin's Creed Odyssey is 1800% more, than GeForce 820A.

Full Specs

  GeForce 820A Radeon HD 6790
Architecture Fermi 2.0 Terascale 2
Code name GF117 Barts
Type Desktop Desktop
Release date 17 March 2014 4 April 2011
Pipelines 96 800
Core clock speed 775 MHz 840 MHz
Transistor count 585 million 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 12.40 33.60
Floating-point performance 297.6 gflops 1,344.0 gflops
Length 198 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 1800 MHz 1050 MHz
Memory bandwidth 14.4 GB/s 134.4 GB/s
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.6 4.4
OpenCL 1.1 1.2
Vulkan N/A N/A
CUDA 2.1
Bitcoin / BTC (SHA256) 122 Mh/s
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