Also, I know those familiar with Sony Vegas may recommend that I simply use Dynamic RAM Preview, but I'd like to not have to if at all possible. Sorry for the double post.
I'm using a Dell Precision M6400 workstation laptop with Windows 7 Ultimate (64-bit) and 16 GB of RAM installed. The programs I use primarily are uTorrent, Sony Vegas Pro 10.0, Mozilla Firefox and VLC Media Player.
The thing is, I purchased and installed all that memory so that my computer would run as fast as possible, but sometimes the CPU Usage spikes near 100% when attempting tasks that should be simple with this much RAM, such as viewing HD video (usually 720p or 1080p) in Sony Vegas. The video will stutter or skip as the CPU Usage leaps to 90 or 95 as is struggles to play the video.
Even, and I tried just now to be sure, opening a new tab (in this case, Wikipedia's home page) caused the CPU Usage to spike near 100, although admittedly only for a few seconds.
I was under the impression that very few tasks could make a computer with this much RAM work so hard. Was I wrong?