Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > Pentium D 820 (2.8 ghz) paired with a 3850 256mb ... BAH!

Pentium D 820 (2.8 ghz) paired with a 3850 256mb ... BAH!

Forum Graphic & Displays : Graphics Cards - Pentium D 820 (2.8 ghz) paired with a 3850 256mb ... BAH!

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Magdy   12-05-2007 at 05:03:01 AM

I'm pretty sure I have a major cpu bottleneck can someone confirm that its my cpu not that the card sucks... I am getting approximately a 20 percent improvement over the x1600xt... In some games. Unreal tournament 3 runs like crap even on the lowest resolution lowest settings. Need for speed carbon runs slightly better then when I had a x1600xt maybe 15 fps increase. Are my hopes to high for the 3850? I game on 1280 1024 resolution max generally no anti aliasing. Bioshock is completely unplayable at 1280 1024 medium settings. Another question is should I turn off adaptive anti aliasing in my vid card settings?

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mactronix   12-05-2007 at 10:08:56 AM
- 0 +


Yes im afraid so it definatly sounds like you have a cpu bottleneck with that set up but its all relative when you say bioshock is unplayable does the CPU meet the game requirements?
Need for speed how many frames exactly?
What about the rest of the system Ram etc
Mactronix

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MikosNZ   12-05-2007 at 10:27:58 AM
- 0 +


It does sound like something is wrong. I have a 1950 on one of my systems and that can handle bioshock on medium at 1680X1050 no problems so a 3850 should easily handle it. I guess its possible the CPU is slowing you down somewhat but it aint terribly slow so is somewhat confusing. As mactronix says above the best chance of answers is if you supply a little more detail about your system, especially the RAM.

ps Bioshock on vista or XP? Ive heard its a bit slower on vista (but that might only hold true for dx10 cards, im not sure)

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Magdy   12-05-2007 at 04:00:47 PM
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I have 2 gigabytes of ram. Bioshock constantly dips under 30fps in all but the lowest settings. Need for speed carbon gets 30-40 fps.

Reply to Magdy
speedbird   12-05-2007 at 05:11:39 PM
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Bioshock enables 'vsync' by default when the game is loaded, no matter how many times it has been switched off. This option cripples Bioshock performance, so make sure it's switched off every time you run it.

Another thing you could try is enabling or disabling Catalyst AI to see what works best with a particular game.

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aznstriker92   12-05-2007 at 11:45:29 PM
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HMM its definantly bottleneck but I didn't think that it would be this bad. Anybody think that a Pentium D 940 @ 3.2 might bottleneck a 3800 series like this?

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Anoobis   12-06-2007 at 12:01:19 AM
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You did of course completely remove the old ATI drivers you were using with the X1600XT, run a driver cleaner software and then install the latest ATI drivers for the new HD 3850, didn't you?

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makotech222   12-06-2007 at 12:29:49 AM
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hmm itshouldnt be that bad.. i have same exact cpu, but with my 7900gt i could run most games at 1280x1024 at pretty good speeds, most of the time on high. on my 1920x1200 monitor, i run most games at 30fps on medium, source is at 60 fps on all high.

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Magdy   12-06-2007 at 04:18:42 AM
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You did of course completely remove the old ATI drivers you were using with the X1600XT, run a driver cleaner software and then install the latest ATI drivers for the new HD 3850, didn't you?"


No, I just got the new one and installed ...

Message quoted 1 times
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Flex_Relax   12-06-2007 at 05:13:42 AM
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Magdy wrote :

You did of course completely remove the old ATI drivers you were using with the X1600XT, run a driver cleaner software and then install the latest ATI drivers for the new HD 3850, didn't you?"


No, I just got the new one and installed ...



Remove all your drivers, then try and install the latest ones again. A driver cleaner software might help you removing the drivers completely, first remove the drivers in add/remove programs and then use the software, reboot and install the lastest drivers. See if it works.

Reply to Flex_Relax
Silver Graphics badge TheGreatGrapeApe   12-06-2007 at 05:23:55 AM
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Use 'Driver Cleaner Pro', and get rid of the old & then re-install the new drivers.

Best way to ensure that you've taken the drivers out of the equation for performance/stability.

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