Too much undervolting or driver issue on my GTX 460?

[netxzero64]

Recently, I noticed that there is a performance change on my games and specially on benchmarks because there is a high performance drop on my benchmarks specifically on lost planet II and resident evil 5...

but back then, benchmarks of these games were consistent and is better than my previous GPU which is the 4890..

I'm only puzzled as to why do i have performance hits? on Skyrim and splintercell conviction also... i thought it had to do with my previous processor which is a phenom II X4 920 @ 2.8ghz because of its temps that it reaches 67c while i'm gaming, so i thought that it had something to do with the temps because the hotter it gets it downclocks to a slower speed right? so what I did was i sold my X4 then i got myself an X3 then overclocked it to 3.68ghz..

so here are the specifics: RE5 bench
x4 @ 2.8ghz @ 1440x900 with my 4890 at max settings and AA i get around 80+ fps
then at my 460 @ 725mhz on same setup and settings i get 87fps as far as i remember.. this was back then... then i tried testing last month with the 460 on the same settings i get just around 64fps.. i just couldn't remember if i had already undervolted my 460 back then when i was testing...

x3 @ 3.68ghz @ 1600x900 with my 460 @ 780mhz, no motion blur, AA is set to 4x (16x before) then the rest set to high, i just get 84fps...

right now my 460 runs on 0.925v @ 780mhz... do i really have a hardware issue? driver? or too much undervolting?

I can't test my computer now because I only go home during the weekends and i stay in a dormitory during the weekdays because of work. I would really appreciate your insight toward this matter..

thanks!

 

[toyota]

I dont think undervolting would cause slowdowns but yeah those numbers seem really low. I can get 154 fps in the benchmark on the settings you used at 1600x900. I certainly do not think my system with stock gtx570 should be 2x faster. my cpu is at 4.2 though so its not a good comparison.

 

[netxzero64]

i just don't get it on why do i suddenly saw lower numbers since back then i get high FPS, i'm just shocked to see why there is a performance decrease.. 20fps decrease is high, not to mention that the 460 is overclocked to 780mhz and decreased settings, i should get higher results... its so weird and i'm so effin irritated by it..

the hardest part is i don't seem to find any reason on why i experience these slowdowns...