Intel Core [email protected]
4GB DDR3 1080MHz
Gainward GTX660 2GB
2.5TB of disk space
Windows 7 Ultimate 64-Bit SP1
I used to have a Radeon HD6850 1GB which is a significantly less powerful card than the 660, and I used to get constant 56fps vsynced on all high settings, draw/detail at 30, 1080p60.
After I found out my CPU was unstable at 4GHz, I downclocked it to 3.78GHz, and that's where the problems started.
I started getting massive FPS drops with enabled shadows, from 56(+)fps, to 40-45fps which were very annoying.
I supposed this was because I downlclocked my CPU, but such a big difference is very odd compared to a 5% reduction in frequency.
I recently bought a Gainward GTX660 2GB, and I decided to give GTAIV another shot.
This time, I used MSI Afterburner to check the GPU usage.
With settings on very high, draw/detail at 70, 1080p60, non-vsynced, I easily got 70+ fps in areas without many cars, but when there were a lot of cards FPS dropped to around 40 with the GPU usage dropping to 50-60%, indicating that it's being bottlenecked by the CPU.
I run the newest versions of all drivers and have tried reinstalling the game.
What should I do?
Thanks in advance.
EDIT: After trying the commandline memory leak fix, the game now crashes no matter what. (While on the character image loading screen, the game suddenly minimizes and cannot be restored, and it still uses CPU time as seen in task manager)
I tried reinstalling the game because of this issue before, and it didn't fix it.
Xliveless fixed this problem until I tried this fix.
Edited by 8ax, 01 July 2013 - 11:24 PM.