Your processor does not have hyper-threading.
Didn't know that, thank you! I'm still getting back in the PC game, so learning all the new tech is a bit of a process. I just saw the fix in another thread reference hyper-threading.
What is your RAM usage at during these dips? Since the minimum requirement is 4gb RAM for BF4, it could be that the system is using the page file quite a bit, which could impact performance.
I never saw RAM go past 85% usage during gameplay. It would usually hover around that mark and occasionally drop a hair lower. I thought the low RAM could be the issue as well until I saw the system usage in task manager. Just to be clear, it does seem like the machine is using the page file often since my disk pegs at 100% and hangs there. My understanding is that this is symptomatic of the system using the page file frequently. Would disabling the page file be advisable as in this thread: http://www.tomshardware.com/forum/id-1658680/prevent-100-disk-usage-windows.html
or would it be better to set a fixed page file size?
I am using Windows 8.1 64 bit, by the way.