Have a strange issue that I have seen since building a new gaming machine. The game will play fine and looks awesome when it suddenly freezes. I mean just stops dead. I go to Task Manager and then back to desktop then reentre the game and it plays fine for a while.
i7 930 CPU
6 Gig DDR3
Pailt GTX 460 video
onboard realtek sound
Windows 7 64 Bit
Mine does something very similar. It will be running fine and then it will drop to 1-2 frames a seconds for about 3-5 seconds and then goes back to normal. This happens on space and ground stuff.
I notice 100% cpu use occuring at the time, with task manager and other apps telling me its the game client doing it. I've run in extremely low settings and the same thing happens. My PC is quite good and plays Crysis ok so its not like its too much for it. I don't seem to get the problem on my games laptop which is of lower spec then the PC.