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Please help about GTX 460 Top Sli

My currently GPUs are GTX460 Top Sli + GTX480

the problem is from test in many website the result was GTX460 Sli better than GTX480 but When ever I connect the HDMI into GTX460 it gave me higher FPS but it's not stable. It 's drop to 20-30 FPS and Swing up to 100+
But with GTX480 it more stable around 70-80 FPS

this result tested from Battle Field 3 and F1 2011

note: when I didn't connect HDMI to another card I changed them into Physx Dedicated ( GTX460 Sli as main card so GTX480 would be Physx dedicated card )


Thanks for help
13 answers Last reply Best Answer
More about please
  1. Just a reminder if using one display; always connect your display to the card that is in the first PCIe slot. Don't connect to the card in the second slot.
  2. Yes I'm connected at 16x slot but I slower and get choppy
  3. I may have misunderstood question and given you a too simple answer. Sorry. If I now understand you correctly, it seems you are having "stutter" problems with 2 GTX 460s in SLI. There is an article on Tom's you may be interested in reading that addresses that.
    http://www.tomshardware.co.uk/radeon-geforce-stutter-crossfire,review-32256-15.html

    While the article deals mainly with Crossfire, it also shows the problem of stutter happens with mid range Nvidia cards too. See if this is what is troubling you.
  4. raydog said:
    BF3 needs more than 1gb vram. see this

    http://www.tomshardware.com/forum/334621-33-ultra-question

    As it stands right now, a single monitor with a resolution of 1920x1080 or less won't normally benefit from more than 1GB of GDDRx VRAM. 2GB+ is indeed necessary for multiple monitors and very high resolution single displays. That's not to say that certain games won't benefit from a bit more VRAM. But not knowing his display reolution, I don't see how you can jump to that conclusion. His problem seems to be more related to "stutter" that shows up in mid range cards when used in a 2 card Crossfire situation.
  5. clutchc said:
    As it stands right now, a single monitor with a resolution of 1920x1080 or less won't normally benefit from more than 1GB of GDDRx VRAM. 2GB+ is indeed necessary for multiple monitors and very high resolution single displays. That's not to say that certain games won't benefit from a bit more VRAM. But not knowing his display reolution, I don't see how you can jump to that conclusion. His problem seems to be more related to "stutter" that shows up in mid range cards when used in a 2 card Crossfire situation.


    Had gtx 460 sli and had same symptoms. Used msi afterburner to monitor in game vram and everytime my fps dipped to 6-15 my vram was maxed out. Lowered my setting so only bout 950-980mb vram was used and it ran smooth as butter. Fact: alot of people are in denial that if u want to run BF3 and some other games at higher setttings; then ur gonna need more than 1gb vram.
  6. I'm not in denial. In fact I never played BF3. I'm only going by what people wiser than me have discovered about Crossfire/SLI and stuttering... http://www.tomshardware.co.uk/radeon-geforce-stutter-crossfire,review-32256-15.html What resolution are you playing at? Single display? One other thing, if you are basing your discovery on the beta version, the finished version may be entirely different. But it's interesting and I will keep that in mind.
  7. Sorry? vram? Is it Virtual memory? If you mean GPUs Memory It's 3Gb. I think it's enough? 768+768+1536
  8. From article you gave does it mean this is normally with Small card when Do Sli?
  9. Best answer
    AerialSpirit said:
    From article you gave does it mean this is normally with Small card when Do Sli?

    It appears they are refering to mid-range and lower, yes.
  10. raydog said:
    BF3 needs more than 1gb vram. see this

    http://www.tomshardware.com/forum/334621-33-ultra-question


    My rig runs it just fine at high settings and menial aa... this is bullshit you do not need 2 gb of vram to play a BF3 on a single 1080p display, benefits will be very marginal...
  11. In this case I mean Ultra mate ;)
  12. Best answer selected by AerialSpirit.
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