Ashampoo Core Tuner promises to boost your multi-core PC's performance by tuning XP's or Vista's usage of multiple CPU cores for individual applications.
Perhaps it does. There are inefficiencies in the way XP and Vista handle multiple CPUs, though this has been fixed in Windows 7. In appearance, Ashampoo Core Tuner has the aspects of a fancier version of Window's own Task Manager with a drop-down menu that allows you to set each applications priority to low, below normal, normal, above normal, or high. There's an auto-optimise option as well that lets Core Tuner do the thinking.
Bottom line, we were unable to spot any difference in performance in Word, Outlook, or any other application set to high priority on either my Intel Core 2 6600 or AMD Phenom II 9550 with Core Tuner.
We were able to perform only subjective testing so there may have been a performance boost that simply wasn't measurable by the naked eye. That said, if you need a stopwatch to notice the difference, any improvement may be too minor to mention for standard PC use.
NEXT: our expert verdict >>