Brand new custom built computer is slow

So two days ago i spent a tonne of money on a new computer to build! it was up and running Saturday night, getting great speeds overall! I bench marked on minecraft at about 180-220 FPS and it was great, then the next day it suddenly was at 70-120 FPS.

I had changed no software settings but it had just randomly dropped, i checked all my settings on Minecraft and they were all right, java was the latest addition.. it was all right.. but it just wasn't working! So i did a full re-install on windows 7, and it was exactly the same at about 70-120 FPS?

Does anyone have any idea what is wrong? this is the first time i built my own computer and i just need help getting it to it's highest performance!


Processor: AMD FX6300 Black Edition 6 Core (3.5/4.1GHz)
Graphics Card: MSI AMD R7870 2GB DDR5 PCI-E
RAM: Corsair Vengeance 8GB (2x4GB) DDR3 1600 Mhz
Case: CiT Vantage Type-R Gaming Case
Power Supply: Corsair CX-600 Watts
HDD: 1TB 7200 rpm
Motherboard: Asus M5A78L-M/USB3 Motherboard (Socket AM3+, Up to 16GB DDR3, USB 3.0, uATX)
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  1. You don't need more than 60fps, unless you have a 120hz monitor, so it doesn't matter.

    What fps are you getting in other games?
  2. Well i don't want to have spent £560 on a computer, and not get it's full performance
  3. If you get 60fps, it doesn't matter, mate. Less than 60fps would be a concern.

    You won't get it's "full performance" on Minecraft anyway - it's barely a taxing game. Try Battlefield 3 - then you'll be getting it's "full performance".

    On Minecraft, go to settings - video settings - use VSync - set to "off". Now see if your fps changes. If so, great. But V-sync should always be enabled if you get more than 60fps anyway.
  4. that's not the point though, why has my computer managed to drop 100FPS in a day?
  5. Best answer
    Probably because it doesn't need to render more than 60 frames?

    For future reference, 60fps is all you need. If you get more than that, then you need to enable V-Sync.

    V-Sync not only eliminates "screen-tearing", but it also reduces the unnecessary strain on the GPU.
  6. Okay that is fair enough, but why did it originally play at such a higher rate and then drop?
  7. bump..
  8. Minecraft FPS changes hugely depending on the map, terrain weather and if your on a server or not.

    Try the optifine mod and tell us results then.
  9. How can i get the best out of my computer which i built though? i updated the drivers, is there anything else?
  10. Aaron Kelsey said:
    How can i get the best out of my computer which i built though? i updated the drivers, is there anything else?

    You could try the latest AMD beta drivers:
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