Radeon HD 4890 vs Radeon HD 6550A

When comparing Radeon HD 4890 and Radeon HD 6550A, 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 HD 4890 and Radeon HD 6550A is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  Radeon HD 4890 Radeon HD 6550A
Power consumption (TDP) 190 Watt 35 Watt
Interface PCIe 2.0 x16 MXM-A (3.0)
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR3
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x S-Video No outputs
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  • Radeon HD 4890 has 442% more power consumption, than Radeon HD 6550A.
  • Radeon HD 4890 is connected by PCIe 2.0 x16, and Radeon HD 6550A uses MXM-A (3.0) interface.
  • Radeon HD 6550A has 1 GB more memory, than Radeon HD 4890.
  • Both cards are used in Desktops.
  • Radeon HD 4890 is build with TeraScale architecture, and Radeon HD 6550A - with TeraScale 2.
  • Core clock speed of Radeon HD 4890 is 300 MHz higher, than Radeon HD 6550A.
  • Radeon HD 4890 is manufactured by 55 nm process technology, and Radeon HD 6550A - by 40 nm process technology.
  • Memory clock speed of Radeon HD 4890 is 2300 MHz higher, than Radeon HD 6550A.

Game benchmarks

high / 1080p 7−8 0−1
ultra / 1080p 4−5
QHD / 1440p 0−1 0−1
low / 720p 16−18 1−2
medium / 1080p 8−9 0−1
The average gaming FPS of Radeon HD 4890 in Assassin's Creed Odyssey is 1600% more, than Radeon HD 6550A.

Full Specs

  Radeon HD 4890 Radeon HD 6550A
Architecture TeraScale TeraScale 2
Code name RV790 Pinewood
Type Desktop Desktop
Release date 2 April 2009 7 February 2011
Pipelines 800 480
Core clock speed 850 MHz 550 MHz
Transistor count 959 million 627 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 34.00 13.20
Floating-point performance 1,360.0 gflops 624.0 gflops
Length 241 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 3900 MHz 1600 MHz
Memory bandwidth 124.8 GB/s 25.6 GB/s
DirectX 10.1 (10_1) 11.2 (11_0)
Shader Model 4.1 5.0
OpenGL 3.3 4.4
OpenCL 1.1 1.2
Vulkan N/A N/A
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