Radeon HD 4890 vs Radeon RX 550X

When choosing between Radeon HD 4890 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 4890 and Radeon RX 550X.

Main Specs

  Radeon HD 4890 Radeon RX 550X
Power consumption (TDP) 190 Watt 50 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 6-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors 2x DVI, 1x S-Video 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 4890 has 280% more power consumption, than Radeon RX 550X.
  • Radeon HD 4890 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 4890.
  • Both cards are used in Desktops.
  • Radeon HD 4890 is build with TeraScale architecture, and Radeon RX 550X - with GCN 4.0.
  • Core clock speed of Radeon RX 550X is 250 MHz higher, than Radeon HD 4890.
  • Radeon HD 4890 is manufactured by 55 nm process technology, and Radeon RX 550X - by 14 nm process technology.
  • Radeon HD 4890 is 96 mm longer, than Radeon RX 550X.
  • Memory clock speed of Radeon RX 550X is 2100 MHz higher, than Radeon HD 4890.

Game benchmarks

high / 1080p 7−8 10−11
ultra / 1080p 4−5 6−7
QHD / 1440p 0−1 0−1
low / 720p 16−18 21−24
medium / 1080p 8−9 12−14
The average gaming FPS of Radeon RX 550X in Assassin's Creed Odyssey is 44% more, than Radeon HD 4890.

Full Specs

  Radeon HD 4890 Radeon RX 550X
Architecture TeraScale GCN 4.0
Code name RV790 Lexa
Type Desktop Desktop
Release date 2 April 2009 16 December 2018
Pipelines 800 512
Core clock speed 850 MHz 1100 MHz
Boost Clock 1183 MHz
Transistor count 959 million 2,200 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 34.00 37.86
Floating-point performance 1,360.0 gflops 1,211 gflops
Length 241 mm 145 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 3900 MHz 6000 MHz
Memory bandwidth 124.8 GB/s 96 GB/s
DirectX 10.1 (10_1) 12 (12_0)
Shader Model 4.1 6.4
OpenGL 3.3 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
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