Radeon HD 6770 vs Radeon Pro 555X

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6770 and Radeon Pro 555X. 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 Radeon HD 6770 and Radeon Pro 555X. 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.

Radeon Pro 555X is a Laptop Graphics Card

Note: Radeon Pro 555X 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 Pro 555X here:

Main Specs

  Radeon HD 6770 Radeon Pro 555X
Power consumption (TDP) 108 Watt 75 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 1x 6-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
  Check Price Check Price
  • Radeon HD 6770 has 44% more power consumption, than Radeon Pro 555X.
  • Radeon HD 6770 is connected by PCIe 2.0 x16, and Radeon Pro 555X uses PCIe 3.0 x8 interface.
  • Radeon Pro 555X has 1 GB more memory, than Radeon HD 6770.
  • Radeon HD 6770 is used in Desktops, and Radeon Pro 555X - in Mobile workstations.
  • Radeon HD 6770 is build with TeraScale 2 architecture, and Radeon Pro 555X - with Polaris.
  • Radeon HD 6770 is manufactured by 40 nm process technology, and Radeon Pro 555X - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 555X is 4030 MHz higher, than Radeon HD 6770.

Game benchmarks

high / 1080p 3−4 16−18
ultra / 1080p 1−2 10−11
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 14−16 30−35
medium / 1080p 5−6 21−24
The average gaming FPS of Radeon Pro 555X in Assassin's Creed Odyssey is 233% more, than Radeon HD 6770.

Full Specs

  Radeon HD 6770 Radeon Pro 555X
Architecture TeraScale 2 Polaris
Code name Juniper Polaris 21
Type Desktop Mobile workstation
Release date 21 January 2011 5 June 2017
Pipelines 800 768
Core clock speed 855 MHz
Boost Clock 900 MHz
Transistor count 1,040 million 3,000 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 34.00 43.54
Floating-point performance 1,360.0 gflops
Length 198 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1050 MHz 5080 MHz
Memory bandwidth 76.8 GB/s 81.6 GB/s
Shared memory -
DirectX 12 (12_0)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131
FreeSync +
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 118 Mh/s
Laptop size large
Eyefinity +
Design reference
CrossFire +
  Check Price Check Price