All games frame rate issue

pratiksurve020694

Honorable
Nov 4, 2013
6
0
10,510
Hello, i just upgraded my gpu from 8400 gs 512 mb ddr3 to hd 6450 1gb dd3.
With 6450 hs i am experiencing fram rate issues, in gta 4 my fps are 30 to 40 fps in lowest settings but frames just becmoe fast or slow.. it is not lag but some stuttering

I tried gta 4, mafia 2, test drive 2
all able to play with 30 + fps but some
fps blocking

My pc has pci -e 1.0 and hd 6450 requires pci 2.1 so does it have issues??

Before with 8400 gs my fps in above games was 18 -30 fps but there was no fps stuttering like gameplay was smooth

My pc spec
Intel Core 2 duo E4500 @2.20Ghz
3.25 gb of ram
Hd 6450 1gb dd3
Windows xp sp3
power supply 230 w

 

JOHNN93

Honorable
its a PCI Express 2.1 x16 bus interface
if you put it in PCI Express 1.0 x16 bus interface you wont be benefited by the full preformance of the gpu your gpu is giving 50% and is causing the shuttering efect.i have the same experience with a 3.0 card in a 2.1 slot.i neede a gpu and i pluged in what ever i had i did now ths whould have happend.this is there your motherboard is bottlenecking your gpu.
 

pratiksurve020694

Honorable
Nov 4, 2013
6
0
10,510
i think direct x could be a problem.. but found no options in controls panel . Can anybody suggest where to find it

i know 230 w is low supply but my older 8400 gs which consumer more power ran smoothy, also overclocked it fully

And with fps stutter i mean the game is playing at 38 fps and suddendly for 1 sec it goes to 23 fps and back to normal
Its like the game is loading some new area when this happens eg a tree or a building

Also drivers were updated to.newest ones while installing