AMD FX 8320 HD7770 lag

MadgoatLOLZ

Reputable
Aug 3, 2014
2
0
4,510
Hello everyone.

When I'm playing BF3 or CSGO my fps from the normal 100-105(maxfps set 105) it's dropping to 40 fps. I don't know why because my temperatures are okay.
My config:
ASUS M5A78L LE
AMD FX8320 stock
6Gb RAM, 4 Gb Kingston, 2 Gb Kingmax
Sapphire HD7770 GHz edition stock
Hitachi 500 Gb HDD
Thermaltake Berlin 630W

All other games run perfectly, I can play for example Skyrim even with mods without any lag. I tried everything, clean OS, clean BF3, I have fps cfg, flashed a new bios to the mobo, origin and other in game things disabled, raptr closed, I removed and put back my videocard, disabled upnp.

My gpu usage is like 50-55% when I have normal fps, but it drops to 28-29%. If I set the grapfics to ultra the gpu usage will be 98-99% but STILL DROPS, fps is than 40-50 dropping to 20...

I tested it with win8.1 and win7, the same result: it lags.

It's sounds like my CPU is holding back my gpu... And I don't think that's normal, my cpu is supposed to be 10 times stronger than holding back a HD7770...
 

cemerian

Honorable
Jul 29, 2013
1,011
0
11,660
those are the moment you cpu is bottlenecking your gpu, every cpu will do this, just that fx have really bad minimums to which they drop at these moments, and its unavoidable take note overclocking will help but not much these cpu's simply arent strong enough, the gpu usage shows you immediately that your bottlenecking your gpu otherwise gpu usage should be around 99%
 

MadgoatLOLZ

Reputable
Aug 3, 2014
2
0
4,510

I tried overlocking, even 4.5 GHz couldn't help... So I can do nothing with this?