Quadro P400 vs Radeon 550X

If you are going to buy a new graphics card and are choosing between Quadro P400 and Radeon 550X, 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 Quadro P400 stacks up against Radeon 550X, check out specs charts below.

Main Specs

  Quadro P400 Radeon 550X
Power consumption (TDP) 30 Watt 50 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 3x mini-DisplayPort 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon 550X has 66% more power consumption, than Quadro P400.
  • Quadro P400 is connected by PCIe 3.0 x16, and Radeon 550X uses PCIe 3.0 x8 interface.
  • Quadro P400 and Radeon 550X have maximum RAM of 2 GB.
  • Both cards are used in Desktops.
  • Quadro P400 is build with Pascal architecture, and Radeon 550X - with GCN 4.0.
  • Core clock speed of Quadro P400 is 146 MHz higher, than Radeon 550X.
  • Quadro P400 and Radeon 550X are manufactured by 14 nm process technology.
  • Both graphics cards are the same length of 145 mm.
  • Memory clock speed of Radeon 550X is 2992 MHz higher, than Quadro P400.

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 9−10
The average gaming FPS of Quadro P400 in Assassin's Creed Odyssey is 11% more, than Radeon 550X.

Full Specs

  Quadro P400 Radeon 550X
Architecture Pascal GCN 4.0
Code name GP107 Lexa
Type Workstation Desktop
Release date 7 February 2017 27 March 2019
Pipelines 256 512
Core clock speed 1228 MHz 1082 MHz
Boost Clock 1252 MHz 1218 MHz
Transistor count 3,300 million 2,200 million
Manufacturing process technology 14 nm 14 nm
Texture fill rate 20.03 38.98
Floating-point performance 679.9 gflops
Length 145 mm 145 mm
Memory bus width 64 Bit 128 Bit
Memory clock speed 4008 MHz 7000 MHz
Memory bandwidth 32.06 GB/s 112.0 GB/s
DirectX 12 (12_1) 12 (12_0)
Shader Model 6.4 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131 1.2.131
CUDA 6.1
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