games are working too slow

[Mano aamer]

Hi guys ,
I have a really big problem .
I have HIS radeon HD 5770 - 8GB ram DDR3 - AMD phenom II X4 945 black edition 3.6 GHz but I have a really bad 160GB hard drive .
games on my PC are running really bad . for example Assassin's Creed III . It is working on 10-15 frames/Sec . I reduced my resolution and i over clocked my graphics card but it was working on the same frame rate
I thought that it is because of my graphics card but when I watched gameplays for assassin's creed III on youtube for people who have radeon HD 5770 I found that this game is working in 30-35 while recording although my PC is stronger than their PCs .

I have no free space on my hard drive and I mean it .
I deleted the hiberfil.sys and the pagefile,sys from my hard disk .

should I buy a new hard disk or my games will work in the same frame rate ?

 

[NoOneLt]

Well, You still need at least 10-20% of free space, but it should not affect game play very much, is HDD should only increase loading times. Could be the problem if game constantly loading something from HDD, but in this case game would drop FPS from time to time.

And what resolutions we are talking about? Have You applied latest AC3 patches?
Have You tried other games? Try benchmarks just to see if Your card is running as it should it's best to run benchmark and compare to results on the web.

 

[Mano aamer]

Well, You still need at least 10-20% of free space, but it should not affect game play very much, is HDD should only increase loading times. Could be the problem if game constantly loading something from HDD, but in this case game would drop FPS from time to time.

And what resolutions we are talking about? Have You applied latest AC3 patches?
Have You tried other games? Try benchmarks just to see if Your card is running as it should it's best to run benchmark and compare to results on the web.

the resolution that i am taking about is from 1920*1080 to 640*480 and yes I have tried a lot of games
and i didn't apply the latest patches but i don't think it will affect that bad and what do you mean by benchmarks ?