GeForce 820A vs Radeon HD 7970

Find out if it is worth upgrading your current GPU setup by comparing GeForce 820A and Radeon HD 7970. 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 820A and Radeon HD 7970. 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.

Main Specs

  GeForce 820A Radeon HD 7970
Power consumption (TDP) 15 Watt 300 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type DDR3 GDDR5
Maximum RAM amount 1 GB 3 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 7970 has 1900% more power consumption, than GeForce 820A.
  • GeForce 820A is connected by PCIe 2.0 x16, and Radeon HD 7970 uses PCIe 3.0 x16 interface.
  • Radeon HD 7970 has 2 GB more memory, than GeForce 820A.
  • Both cards are used in Desktops.
  • GeForce 820A is build with Fermi 2.0 architecture, and Radeon HD 7970 - with GCN.
  • GeForce 820A and Radeon HD 7970 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce 820A is 425 MHz higher, than Radeon HD 7970.

Game benchmarks

high / 1080p 0−1 35−40
ultra / 1080p 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 1−2 60−65
medium / 1080p 0−1 40−45
The average gaming FPS of Radeon HD 7970 in Assassin's Creed Odyssey is 6100% more, than GeForce 820A.

Full Specs

  GeForce 820A Radeon HD 7970
Architecture Fermi 2.0 GCN
Code name GF117 Tahiti XT
Type Desktop Desktop
Release date 17 March 2014 22 December 2011
Pipelines 96 2048
Core clock speed 775 MHz
Boost Clock 925 MHz
Transistor count 585 million 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 12.40 118.4
Floating-point performance 297.6 gflops 3,789 gflops
Length 274 mm
Memory bus width 64 Bit 384 Bit
Memory clock speed 1800 MHz 1375 MHz
Memory bandwidth 14.4 GB/s 264 GB/s
Shared memory -
DirectX 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.1 1.2
Vulkan N/A
CUDA 2.1
FreeSync +
Bus support PCIe 2.1 x16
HDMI +
Bitcoin / BTC (SHA256) 485 Mh/s
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Design reference
CrossFire +
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