Quadro P400 vs Radeon HD 4890

When choosing between Quadro P400 and Radeon HD 4890, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Quadro P400 and Radeon HD 4890.

Main Specs

  Quadro P400 Radeon HD 4890
Power consumption (TDP) 30 Watt 190 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors None 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors 3x mini-DisplayPort 2x DVI, 1x S-Video
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  • Radeon HD 4890 has 533% more power consumption, than Quadro P400.
  • Quadro P400 is connected by PCIe 3.0 x16, and Radeon HD 4890 uses PCIe 2.0 x16 interface.
  • Quadro P400 has 1 GB more memory, than Radeon HD 4890.
  • Both cards are used in Desktops.
  • Quadro P400 is build with Pascal architecture, and Radeon HD 4890 - with TeraScale.
  • Core clock speed of Quadro P400 is 378 MHz higher, than Radeon HD 4890.
  • Quadro P400 is manufactured by 14 nm process technology, and Radeon HD 4890 - by 55 nm process technology.
  • Radeon HD 4890 is 96 mm longer, than Quadro P400.
  • Memory clock speed of Quadro P400 is 108 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 18−20 16−18
medium / 1080p 9−10 8−9
The average gaming FPS of Quadro P400 in Assassin's Creed Odyssey is 11% more, than Radeon HD 4890.

Full Specs

  Quadro P400 Radeon HD 4890
Architecture Pascal TeraScale
Code name GP107 RV790
Type Workstation Desktop
Release date 7 February 2017 2 April 2009
Pipelines 256 800
Core clock speed 1228 MHz 850 MHz
Boost Clock 1252 MHz
Transistor count 3,300 million 959 million
Manufacturing process technology 14 nm 55 nm
Texture fill rate 20.03 34.00
Floating-point performance 679.9 gflops 1,360.0 gflops
Length 145 mm 241 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 4008 MHz 3900 MHz
Memory bandwidth 32.06 GB/s 124.8 GB/s
DirectX 12 (12_1) 10.1 (10_1)
Shader Model 6.4 4.1
OpenGL 4.6 3.3
OpenCL 1.2 1.1
Vulkan 1.2.131 N/A
CUDA 6.1
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