Radeon 550X vs Radeon HD 4890

When comparing Radeon 550X and Radeon HD 4890, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon 550X and Radeon HD 4890 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  Radeon 550X Radeon HD 4890
Power consumption (TDP) 50 Watt 190 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors None 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x S-Video
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  • Radeon HD 4890 has 280% more power consumption, than Radeon 550X.
  • Radeon 550X is connected by PCIe 3.0 x8, and Radeon HD 4890 uses PCIe 2.0 x16 interface.
  • Radeon 550X has 1 GB more memory, than Radeon HD 4890.
  • Both cards are used in Desktops.
  • Radeon 550X is build with GCN 4.0 architecture, and Radeon HD 4890 - with TeraScale.
  • Core clock speed of Radeon 550X is 232 MHz higher, than Radeon HD 4890.
  • Radeon 550X is manufactured by 14 nm process technology, and Radeon HD 4890 - by 55 nm process technology.
  • Radeon HD 4890 is 96 mm longer, than Radeon 550X.
  • Memory clock speed of Radeon 550X is 3100 MHz higher, than Radeon HD 4890.

Game benchmarks

high / 1080p 7−8 7−8
ultra / 1080p 4−5 4−5
QHD / 1440p 0−1 0−1
low / 720p 16−18 16−18
medium / 1080p 9−10 8−9
Radeon 550X and Radeon HD 4890 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Radeon 550X Radeon HD 4890
Architecture GCN 4.0 TeraScale
Code name Lexa RV790
Type Desktop Desktop
Release date 27 March 2019 2 April 2009
Pipelines 512 800
Core clock speed 1082 MHz 850 MHz
Boost Clock 1218 MHz
Transistor count 2,200 million 959 million
Manufacturing process technology 14 nm 55 nm
Texture fill rate 38.98 34.00
Floating-point performance 1,360.0 gflops
Length 145 mm 241 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 7000 MHz 3900 MHz
Memory bandwidth 112.0 GB/s 124.8 GB/s
DirectX 12 (12_0) 10.1 (10_1)
Shader Model 6.4 4.1
OpenGL 4.6 3.3
OpenCL 2.0 1.1
Vulkan 1.2.131 N/A
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