Radeon HD 4850 X2 vs Radeon HD 4890

If you are going to buy a new graphics card and are choosing between Radeon HD 4850 X2 and Radeon HD 4890, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 4850 X2 stacks up against Radeon HD 4890, check out specs charts below.

Main Specs

  Radeon HD 4850 X2 Radeon HD 4890
Power consumption (TDP) 250 Watt 190 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin 2x 6-pin
Memory type GDDR3 GDDR5
Maximum RAM amount 512 MB 1 GB
Display Connectors 4x DVI, 1x S-Video 2x DVI, 1x S-Video
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  • Radeon HD 4850 X2 has 31% more power consumption, than Radeon HD 4890.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Radeon HD 4850 X2 has 511 GB more memory, than Radeon HD 4890.
  • Both cards are used in Desktops.
  • Radeon HD 4850 X2 and Radeon HD 4890 are build with TeraScale architecture.
  • Core clock speed of Radeon HD 4890 is 225 MHz higher, than Radeon HD 4850 X2.
  • Radeon HD 4850 X2 and Radeon HD 4890 are manufactured by 55 nm process technology.
  • Radeon HD 4850 X2 is 26 mm longer, than Radeon HD 4890.
  • Memory clock speed of Radeon HD 4890 is 1910 MHz higher, than Radeon HD 4850 X2.

Game benchmarks

high / 1080p 3−4 7−8
ultra / 1080p 2−3 4−5
QHD / 1440p 0−1 0−1
low / 720p 14−16 16−18
medium / 1080p 5−6 8−9
The average gaming FPS of Radeon HD 4890 in Assassin's Creed Odyssey is 50% more, than Radeon HD 4850 X2.

Full Specs

  Radeon HD 4850 X2 Radeon HD 4890
Architecture TeraScale TeraScale
Code name R700 RV790
Type Desktop Desktop
Release date 7 November 2008 2 April 2009
Pipelines 800 800
Core clock speed 625 MHz 850 MHz
Transistor count 956 million 959 million
Manufacturing process technology 55 nm 55 nm
Texture fill rate 25.00 34.00
Floating-point performance 2x 1,000.0 gflops 1,360.0 gflops
Length 267 mm 241 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 1990 MHz 3900 MHz
Memory bandwidth 63.68 GB/s 124.8 GB/s
DirectX 10.1 (10_1) 10.1 (10_1)
Shader Model 4.1 4.1
OpenGL 3.3 3.3
OpenCL 1.1 1.1
Vulkan N/A N/A
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