Radeon HD 6550A vs Radeon HD 7770M

In this comparison between Radeon HD 6550A and Radeon HD 7770M 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 7770M will be their preference. Study the comparison tables below and make your choice.

Radeon HD 7770M is a Laptop Graphics Card

Note: Radeon HD 7770M 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 Radeon HD 7770M here:

Main Specs

  Radeon HD 6550A Radeon HD 7770M
Power consumption (TDP) 35 Watt 32 Watt
Interface MXM-A (3.0) PCIe 2.0 x16
Memory type GDDR3 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs No outputs
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  • Radeon HD 6550A has 9% more power consumption, than Radeon HD 7770M.
  • Radeon HD 6550A is connected by MXM-A (3.0), and Radeon HD 7770M uses PCIe 2.0 x16 interface.
  • Radeon HD 6550A has 1 GB more memory, than Radeon HD 7770M.
  • Radeon HD 6550A is used in Desktops, and Radeon HD 7770M - in Laptops.
  • Radeon HD 6550A is build with TeraScale 2 architecture, and Radeon HD 7770M - with GCN.
  • Core clock speed of Radeon HD 7770M is 125 MHz higher, than Radeon HD 6550A.
  • Radeon HD 6550A is manufactured by 40 nm process technology, and Radeon HD 7770M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7770M is 2400 MHz higher, than Radeon HD 6550A.

Game benchmarks

high / 1080p 0−1 9−10
ultra / 1080p 5−6
QHD / 1440p 0−1 0−1
low / 720p 1−2 21−24
medium / 1080p 0−1 10−12
The average gaming FPS of Radeon HD 7770M in Assassin's Creed Odyssey is 2100% more, than Radeon HD 6550A.

Full Specs

  Radeon HD 6550A Radeon HD 7770M
Architecture TeraScale 2 GCN
Code name Pinewood Chelsea XT
Type Desktop Laptop
Release date 7 February 2011 24 April 2012
Pipelines 480 512
Core clock speed 550 MHz 675 MHz
Transistor count 627 million 1,500 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 13.20 21.60
Floating-point performance 624.0 gflops 691.2 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 1600 MHz 4000 MHz
Memory bandwidth 25.6 GB/s 64 GB/s
Shared memory -
DirectX 11.2 (11_0) 12 (11_1)
Shader Model 5.0 5.1
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan N/A 1.2.131
Laptop size medium sized
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