Mac OS X Yosemite vs Mac OS X Mavericks comparison

Find out how Mac OS X Yosemite compares to Mac OS X Mavericks. In this comparison review we examine the two operating systems and ask what you can expect if you update from Mavericks to Yosemite - including detailed speed testing comparisons, so you can see if upgrading to Yosemite is likely to slow down your Mac.