Radeon HD 6550A vs Radeon HD 6790

In this comparison between Radeon HD 6550A 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 Radeon HD 6550A 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

  Radeon HD 6550A Radeon HD 6790
Power consumption (TDP) 35 Watt 150 Watt
Interface MXM-A (3.0) PCIe 2.0 x16
Supplementary power connectors 2x 6-pin
Memory type GDDR3 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
  Check Price
  • Radeon HD 6790 has 328% more power consumption, than Radeon HD 6550A.
  • Radeon HD 6550A is connected by MXM-A (3.0), and Radeon HD 6790 uses PCIe 2.0 x16 interface.
  • Radeon HD 6550A has 1 GB more memory, than Radeon HD 6790.
  • Both cards are used in Desktops.
  • Radeon HD 6550A is build with TeraScale 2 architecture, and Radeon HD 6790 - with Terascale 2.
  • Core clock speed of Radeon HD 6790 is 290 MHz higher, than Radeon HD 6550A.
  • Radeon HD 6550A and Radeon HD 6790 are manufactured by 40 nm process technology.
  • Memory clock speed of Radeon HD 6550A is 550 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 Radeon HD 6550A.

Full Specs

  Radeon HD 6550A Radeon HD 6790
Architecture TeraScale 2 Terascale 2
Code name Pinewood Barts
Type Desktop Desktop
Release date 7 February 2011 4 April 2011
Pipelines 480 800
Core clock speed 550 MHz 840 MHz
Transistor count 627 million 1,700 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 13.20 33.60
Floating-point performance 624.0 gflops 1,344.0 gflops
Length 198 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1600 MHz 1050 MHz
Memory bandwidth 25.6 GB/s 134.4 GB/s
DirectX 11.2 (11_0) 11.2 (11_0)
Shader Model 5.0 5.0
OpenGL 4.4 4.4
OpenCL 1.2 1.2
Vulkan N/A N/A
Bitcoin / BTC (SHA256) 122 Mh/s
  Check Price