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In Q.U.B.E (steam game), I can make it all the way up to the first few laser puzzles with no issues, but then my FPS will suddenly drop to 10-20.

My PC specs are as follows:

  • AMD Phenom II 3.4Ghz Quad
  • Sapphire Radeon HD 6870
  • 8GB G.Skill DDR3
  • 1TB Seagate Barracuda

I will normally get 60+ FPS up until said point.

This is a major issue for me as I am trying to record a let's play of the game, and I cannot progress if my FPS is so horrible!

Note: The FPS is horrible even if I'm not recording.

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The game is running off of the unreal engine. Last I heard, it doesn't run as great on ATI cards. – Jeff Mercado Feb 4 '12 at 6:27
@JeffMercado As I said, I normally get 60+ FPS when playing. Also, AMD replaced ATI's graphics cards several years ago. – Pachow Studios Feb 4 '12 at 6:32
ATI/AMD, you know what I mean. ;) – Jeff Mercado Feb 4 '12 at 6:32
Is the FPS still so bad when you're not recording? – BlueRaja - Danny Pflughoeft Feb 4 '12 at 7:01
@BlueRaja-DannyPflughoeft Yes, it doesn't matter if I'm recording or not. – Pachow Studios Feb 4 '12 at 7:04
up vote 0 down vote accepted

Well I finally figured out the cause of this.

As I am recording with Fraps, and Fraps uses the HDD relentlessly, my disk was rapidly becoming fragmented as I recorded.

Whenever I encounter this issue again, running a quick defrag fixes it right up!

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