Radeon HD 6770 vs Radeon RX 550X

When choosing between Radeon HD 6770 and Radeon RX 550X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 6770 and Radeon RX 550X.

Main Specs

  Radeon HD 6770 Radeon RX 550X
Power consumption (TDP) 108 Watt 50 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 4 GB
Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6770 has 116% more power consumption, than Radeon RX 550X.
  • Radeon HD 6770 is connected by PCIe 2.0 x16, and Radeon RX 550X uses PCIe 3.0 x8 interface.
  • Radeon RX 550X has 3 GB more memory, than Radeon HD 6770.
  • Both cards are used in Desktops.
  • Radeon HD 6770 is build with TeraScale 2 architecture, and Radeon RX 550X - with GCN 4.0.
  • Radeon HD 6770 is manufactured by 40 nm process technology, and Radeon RX 550X - by 14 nm process technology.
  • Radeon HD 6770 is 53 mm longer, than Radeon RX 550X.
  • Memory clock speed of Radeon RX 550X is 4950 MHz higher, than Radeon HD 6770.

Game benchmarks

high / 1080p 3−4 10−11
ultra / 1080p 1−2 6−7
QHD / 1440p 0−1 0−1
low / 720p 14−16 21−24
medium / 1080p 5−6 12−14
The average gaming FPS of Radeon RX 550X in Assassin's Creed Odyssey is 116% more, than Radeon HD 6770.

Full Specs

  Radeon HD 6770 Radeon RX 550X
Architecture TeraScale 2 GCN 4.0
Code name Juniper Lexa
Type Desktop Desktop
Release date 21 January 2011 16 December 2018
Pipelines 800 512
Core clock speed 1100 MHz
Boost Clock 900 MHz 1183 MHz
Transistor count 1,040 million 2,200 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 34.00 37.86
Floating-point performance 1,360.0 gflops 1,211 gflops
Length 198 mm 145 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1050 MHz 6000 MHz
Memory bandwidth 76.8 GB/s 96 GB/s
DirectX 12 (12_0)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 118 Mh/s
Eyefinity +
Design reference
CrossFire +
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