Radeon HD 4890 vs Radeon HD 7790

When comparing Radeon HD 4890 and Radeon HD 7790, 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 7790 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 7790
Power consumption (TDP) 190 Watt 85 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 6-pin 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 1 GB
Display Connectors 2x DVI, 1x S-Video 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 4890 has 123% more power consumption, than Radeon HD 7790.
  • Radeon HD 4890 is connected by PCIe 2.0 x16, and Radeon HD 7790 uses PCIe 3.0 x16 interface.
  • Radeon HD 4890 and Radeon HD 7790 have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • Radeon HD 4890 is build with TeraScale architecture, and Radeon HD 7790 - with GCN 2.0.
  • Core clock speed of Radeon HD 7790 is 150 MHz higher, than Radeon HD 4890.
  • Radeon HD 4890 is manufactured by 55 nm process technology, and Radeon HD 7790 - by 28 nm process technology.
  • Radeon HD 4890 is 58 mm longer, than Radeon HD 7790.
  • Memory clock speed of Radeon HD 7790 is 2100 MHz higher, than Radeon HD 4890.

Game benchmarks

high / 1080p 7−8 16−18
ultra / 1080p 4−5 9−10
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 16−18 30−35
medium / 1080p 8−9 20−22
The average gaming FPS of Radeon HD 7790 in Assassin's Creed Odyssey is 122% more, than Radeon HD 4890.

Full Specs

  Radeon HD 4890 Radeon HD 7790
Architecture TeraScale GCN 2.0
Code name RV790 Bonaire
Type Desktop Desktop
Release date 2 April 2009 22 March 2013
Pipelines 800 896
Core clock speed 850 MHz 1000 MHz
Transistor count 959 million 2,080 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 34.00 56.00
Floating-point performance 1,360.0 gflops 1,792 gflops
Length 241 mm 183 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 6.3
OpenGL 3.3 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
Bitcoin / BTC (SHA256) 218 Mh/s
Ethereum / ETH (DaggerHashimoto) 5.2 Mh/s
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