Radeon HD 4890 vs Radeon HD 6750

In this comparison between Radeon HD 4890 and Radeon HD 6750 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon HD 4890 will be the best choice, for others Radeon HD 6750 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  Radeon HD 4890 Radeon HD 6750
Power consumption (TDP) 190 Watt 86 Watt
Interface PCIe 2.0 x16 PCIe 2.0 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 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 4890 has 120% more power consumption, than Radeon HD 6750.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Radeon HD 4890 and Radeon HD 6750 have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • Radeon HD 4890 is build with TeraScale architecture, and Radeon HD 6750 - with TeraScale 2.
  • Radeon HD 4890 is manufactured by 55 nm process technology, and Radeon HD 6750 - by 40 nm process technology.
  • Radeon HD 4890 is 71 mm longer, than Radeon HD 6750.
  • Memory clock speed of Radeon HD 4890 is 2850 MHz higher, than Radeon HD 6750.

Game benchmarks

high / 1080p 7−8 1−2
ultra / 1080p 4−5 0−1
QHD / 1440p 0−1 0−1
low / 720p 16−18 12−14
medium / 1080p 8−9 3−4
The average gaming FPS of Radeon HD 4890 in Assassin's Creed Odyssey is 83% more, than Radeon HD 6750.

Full Specs

  Radeon HD 4890 Radeon HD 6750
Architecture TeraScale TeraScale 2
Code name RV790 Juniper
Type Desktop Desktop
Release date 2 April 2009 21 January 2011
Pipelines 800 720
Core clock speed 850 MHz
Boost Clock 900 MHz
Transistor count 959 million 1,040 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 34.00 25.20
Floating-point performance 1,360.0 gflops 1,008.0 gflops
Length 241 mm 170 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 3900 MHz 1050 MHz
Memory bandwidth 124.8 GB/s 73.6 GB/s
DirectX 10.1 (10_1)
Shader Model 4.1 5.0
OpenGL 3.3 4.4
OpenCL 1.1 1.2
Vulkan N/A
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 92 Mh/s
Eyefinity +
Design reference
CrossFire +
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