unbelievably low FPS in far cry 1, any ideas why?

Reaper 392

Reaper 392

Reaper 392

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i've been playing through far cry 1 on my new PC. it has a phenom II X4 955BE, and GTX 460 768MB card. it been handling the game just fine, getting a 90 FPS average, and 60FPS minimum. all this was on the very maximum graphics

on the part where you transport the nuke the FPS occasionally dropped below 25FPS. at first i thought it was just shoddy programming in a couple of parts (whenever i looked away from the massive light source, everything went ok)

however, im now looking at a volcano. the FPS is HORRIFIC. on maximum graphics im getting 5-20FPS, and on medium settings that only goes up to 10-30FPS.
is it like this for everyone else, or do i have a problem with my graphics card all of a sudden?

on a side note, is there a program i can check that my graphics card is all working fine, and that no parts have broken that wouldnt neccessarily kill the card (eg, if one or two of the RAM modules had blown for some reason, for it to detect that)
 
ok, problem has been solved.

i was about to get a screenshot showing that i had the latest drivers (knowing that it was the most common question to be asked), but i noticed that for some extraordinary reason my computer decided that installing some ancient drivers was a kuch better idea.

FPS is now ~150-200 in the area that was ~5-15, on maximum graphics
 
wow, this is very strange. was gonna give the game one last go before i went to bed, and the frame rate has dropped back to its previous unplayable state (7FPS).

graphics are the same level (maximum), driver is the same (at least there isnt a new one available), and level is exactly the same (i'm still stuck on the same bit as i was before)

i am really struggling to work out what is wrong.

ive just run furmark for a couple of minutes, and nothing seemed wrong:
- frame rate was 50FPS average (a tiny bit lower than normal, but it normally starts off slowly and speeds up after a few seconds)
- CPU-Z reported that the card was running at full speed (700 core/1400 shader/1840 memory)

my only thought is that my DVD drive is the problem, simply because it has been a problem before

oh, my card is a 460GTX 768MB if i havent posted it before
 
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oh, i dont know if this will help, but every time i get the problem, in the graphics options, anti aliasing is in a different colour to normal, and cant be changed.

any idea what is causing this, because its really irritating.

*edit*
just tried to open the nvidia control panel, and got the following message:
the Nvidia display panel cannot be created

possible reasons include:
version mismatch, reinstalling display drivers may solve this problem

*edit two*
rolling back to the previous driver, then searching for the new driver again seemed to do the trick.

do you think it was caused by the computer going into sleep mode after the driver was updated, rather than a complete reboot? its the only thing i can think of
 
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Worth mentioning that that section of the game (climbing up the volcano) did have extremely bad performance when I played it, although obviously this was on much less powerful hardware (P4 with 6800 I think). I seem to recall it dropping to around 15fps whereas most of the game ran at say 40-80fps with my chosen settings.

That said, it does sound like a driver issue. Get the 270.51 set installed manually, don't use any buttons to find drivers online, just download and install from http://downloads.guru3d.com/download.php?det=2702
 
thanks, will try that tomorrow.

the performance is actually on par with the rest of the game when the driver isnt being a pain.

200-300FPS leading up to it, 60-80FPS when theres massive amounts of fighting going on.

*edit*
would it not be a better idea to get the driver from the nvidia website, seeing that the one you linked to is a beta version, and im having enough problems as it is.

this is the one nvidia reccommends i download (i just entered card and OS details)
http://www.nvidia.co.uk/object/win7-winvista-64bit-266.58-whql-driver-uk.html
 
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