GeForce 820A vs Radeon HD 4870 X2

Find out if it is worth upgrading your current GPU setup by comparing GeForce 820A and Radeon HD 4870 X2. 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 4870 X2. 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 820A
Radeon HD 4870 X2

Main Specs

  GeForce 820A Radeon HD 4870 X2
Power consumption (TDP) 15 Watt 286 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type DDR3 GDDR5
Maximum RAM amount 1 GB 1 GB
Display Connectors No outputs 2x DVI, 1x S-Video
 
  • Radeon HD 4870 X2 has 1806% 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 4870 X2 have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • GeForce 820A is build with Fermi 2.0 architecture, and Radeon HD 4870 X2 - with TeraScale.
  • Core clock speed of GeForce 820A is 75 MHz higher, than Radeon HD 4870 X2.
  • GeForce 820A is manufactured by 28 nm process technology, and Radeon HD 4870 X2 - by 55 nm process technology.
  • Memory clock speed of Radeon HD 4870 X2 is 1800 MHz higher, than GeForce 820A.

Game benchmarks

high / 1080p 0−1 3−4
ultra / 1080p 1−2
QHD / 1440p 0−1 0−1
low / 720p 1−2 14−16
medium / 1080p 0−1 6−7
The average gaming FPS of Radeon HD 4870 X2 in Assassin's Creed Odyssey is 1400% more, than GeForce 820A.

Full Specs

  GeForce 820A Radeon HD 4870 X2
Architecture Fermi 2.0 TeraScale
Code name GF117 R700
Type Desktop Desktop
Release date 17 March 2014 12 August 2008
Pipelines 96 800
Core clock speed 775 MHz 700 MHz
Transistor count 585 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 12.40 28.00
Floating-point performance 297.6 gflops 2x 1,120.0 gflops
Length 267 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 1800 MHz 3600 MHz
Memory bandwidth 14.4 GB/s 115.2 GB/s
DirectX 12 (11_0) 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.6 3.3
OpenCL 1.1 1.1
Vulkan N/A N/A
CUDA 2.1