Gaming PC for Under £500 Poseidon Series


  • GTX 780-ti GPU
  • Ryzen 5 or Ryzen 7
  • up to 16gb RAM
  • upto 1.5tb storage
  • Chose liquid or air cooling


Is it possible to buy a ‘real’ gaming PC for under £500, yes it is! Better yet, you can build it right here. The Poseidon series is an AMD custom build using the AM4 chipset and the RX570 GPU. We are confident you will not find a better price for a similar build. Choose your RAM, Storage and even Liquid or Air Cooling configurations. Because our development team configure each build you can be sure to get the best performance on your chosen build.

Poseidon is a great choice for those looking to migrate from gaming consoles. You can expect better performance, graphics and FPS on your favourite games. Because it is a PC you have better control of your preferred settings. If you need some tips to help with that visit The Gamers Den. We also have some tutorials on our youtube channel. Because Karasu is dedicated to each custom build we also provide one-year free support. You will not a better service or product for less.

Typical FPS with Ryzen 7 2700x, 8Gb RAM and RX570 GPU on Poseidon (Please note these are Frame Rates using a 144Hz Display):

  • Counter-Strike: Global Offensive = 190 FPS
  • Fortnite = 180 FPS
  • PlayerUnknown’s Battlegrounds = 100FPS
  • Grand Theft Auto V = 100 FPS (Exceeds the cap of 60 FPS)
  • League of Legends = 320 FPS
  • Overwatch = 180 FPS
  • Battlefield 1 = 80 FPS
  • The Witcher 3: Wild Hunt = 100 FPS
  • Minecraft = 280 FPS
  • DOTA 2 = 240 FPS
  • World of Warcraft = 170 FPS
  •  World of Tanks = 150 FPS

Get a quality gaming pc for under £500 with premium support today!


  • Choice of AMD 200GE, Ryzen 5 2600 or Ryzen 7 2700x
  • Choice of air cooled or customised liquid cooling
  • 8GB or 16GB RAM
  • GTX 780-ti Graphics
  • Upto 1.5GB Storage (SSD and HDD)

Additional information

Weight 25 kg
Dimensions 47 × 27 × 50 cm

8Gb, 16Gb


AMD 200GE 3.2GHz dual core, Ryzen 5 2600 3,4GHz 6 core, Ryzen 7 2700x 3.7GHz 8 core


1TB HDD, 500Gb SSD, 500Gb SSD & 1TB HHD


Liquid Cooled, Air Cooled


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