Frame rate OK, but frame rate seems to cycle

kjeezee

Honorable
Sep 21, 2013
3
0
10,510
bit of a strange one this, I didn't even know how to google it...

my system is half decent, Windows 7, phenom II965 3.4 quad core, 16gb RAM @ 1333, SANDISK SSD system disk, RADEON 7870 2gb, viewsonic VX2453 LED 1080p monitor. using all latest drivers and updates including the signed monitor one just in case.

the frame rate is spot on, most things at highest resolution getting 40 FPS and above, GTA4 @ 1920 in highest is getting benchmarked at 44fps.. so OK, not mega, but well playable.

so, here's the problem, the game, while the frame rate is great and FRAPS gives solid figures, every second (and I mean like clockwork) the smoothness is interrupted.. I have attached a link to the a video which you can see what I mean (sort of)...

https://www.dropbox.com/s/3o5ijsd9jnttilk/GTAIV%202013-09-21%2014-27-57-09.divx

Anyone got any ideas where to start.....??
 

P1nnacle

Distinguished
That looks like frame stutter to me, I would try lowering the settings a bit and enabling VSYNC to see if that gets rid of it.

Update: Also, if you have VSYNC enabled, try disabling it first. Sorry meant to put that in first...