Nice find mcnumpty23. While hyper-threading isn't always used it isnt going to hurt you. Turbo Boost on the other hand can always give you a performance boost since what it does is increase the clock speed of the processor based on the number of cores in use and the temperatures of the processor. In the end you don't need to worry about disabling them at all.
Well, I don't think that a stutter is always an indicator that you are having poor performance. This is the first time I've seen anything about HT causing stutter. I have a pretty good setup and I have a lot of games that stutter and run choppy even with consistently high framerates. I've got a couple ideas I'm going to try tomorrow, which involve turning this HT off, trying a different mouse, possibly a different keyboard too. I've read somewhere that it is possible for certain mice and keyboards, and their settings, to be the culprits. I've noticed in certain games that plugging in my 360 controller will eliminate stutter(this worked with crysis 2, silky smooth with gamepad). I tried turning of repeated keystrokes in ease of access center with no results. I wonder if maybe USB could be causing this. Not too long ago I swapped out cases and noticed a warning that certain devices could perform faster if I had them plugged into high speed ports. The funny thing is, it gave me this warning even when peripherals WERE plugged into high speed ports. Is it possible for my USB drivers to become corrupt in some way? I know I shouldn't be experiencing stutter in a lot of these games, especially when other games run buttery smooth, ones that seem equally demanding. I've tried just about every fix I've come across, new drivers, new caps, disabling CF, enabling this, editing that. Certain issues I just can't seem to resolve.