nikoli707 :
download the latest msi afterburner and load it up on screen. you can go into the options and unlock voltage monitoring if you want. let it run in the background while you play a few games or until your "issue" occurs. then look at the hardware monitor and look at the power %, temp, core clock, voltage, and temp limit. if your card is throttling for some reason... your "core clock" in the graph will have jaggy lines. it might bounce up and down a 60mhz or so difference as it is it is going from p0 base clocks to p0 boost clocks... but it shouldn't have a jaggy lines. when you close a game and on desktop it should be reporting some really low clock like 300mhz as it goes into.
if it is throttling... then you are likely hitting the temp limit or the voltage limit... and those graphs will reflect it by showing th readings... or very unlikely hitting the power % limit.
well i just got done trying the new GPU on the my other rig (z77 sabertooth) and the same issue occurred. went down to 40fps when starting a game, then it got stuck at 50-70, so i hit the ctrl+alt delete, and it shot back up to normal fps which is 150-200fps. So both PC's with BOTH GPU's (new and old) are still acting the same way for medal of honor. I cant imagine the new card already having voltage and power issues, especially with both PC's. So im going to go to back to my main rig (asrock extreme9) and try out bf4 again for a while and see what happens. this not making any sense so far lol. So im not really worried about components anymore. I'll just wait until the next driver.
i mentioned in the first post that my mhz got stuck at 679mhz, that was in SLI mode with the old GPU's. i havent checked the core clock with the new one, so i will, but i still cant imagine that being the issue with BOTH PC's and since this card I am using now is new. But hitting the windows key or ctrl+alt delete and clicking back into the game seems to cure it every time with the new and old gpu.
EDIT: Alright, so my dad is using a 570 PNY gpu. I tried that card out just to see whats up. that card handled medal of honor real well, easy over 90fps a majority of the time at advanced. the issue happened AGAIN. this is with the sabertooth z77 computer. So yeah, it aint my gpu's unless my dads gpu failing as well. i got stuck at 50fps until i hit ctrl+alt delete. So yeah this definitely means something is up with the game. So, again, im going to try bf4 again with the new gpu, but if it happens again theres nothing left to do but to blame drivers. i have tried 337.50, 33.788, and 340.52 remember, and they still have not worked. I have been using 340.52 recently since there were no difference with the other two.