is it worth running pci-e 3.0 card on a pci-e x16 slot

im thinking about get a gtx 650 ti boost, and i heard that running a running pci-e 3.0 card on a pci-e x16 slot, the card wont be able to run at its full ability, i was wondering how much of a performance drop would that be? and would it still be worth getting?
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More about worth running pci card pci x16 slot
  1. it will run at the max the pci-e slot permit and yes it will not run at full capacity could be up to 25 and 50 % of the max card could give .
  2. Those are 2 separate specs. PCIE-3.0 slots are x16. Do you mean your running a 3.0 card on a 2.0 slot? 3.0 and 2.0 both operate on x16 slots.
  3. i just want to get an idea of how much of a performance drop i would have if i did put it in 2.0
  4. Best answer
    None. The gtx 650 ti boost does not max out even a single PCIe 2.0 slot configured in x16 mode. You can use it in such configuration with no measurable performance drop at all.
  5. I run my 7950 which is a PCI-E 3.0 card on a 2.0 slot and i have also tried it in my other pc with a 3.0 slot. I oculdn't tell the difference but in theory the 2.0 is slower
  6. The R9 290X draws 250 watts and the R7 240 draws 50 watts. Both cards are spec'd for PCI-e 3.0. This tells me that ALL of the bells and whistles of the R7 240 at just a 50 watt draw will appear on screen in all of its glory, although at a lower (1280X720 perhaps?) resolution. Meanwhile, the add on 6 pin and sometimes 8 pin power cords draw off the main power rail from the power supply for video cards that draw lots of power and they too should produce ALL of their bells and whistles as long as the plugs and power supply provide sufficient watts. PCI-e x 16, PCI-e X 16 2.0, PCI-e X 16 2.1 and PCI-e X 16 3.0 only provide power. If sufficient power is available, the card will do its job. For the majority of games, the cards are fine even with marginal power and only a select few games give problems to even the biggest, baddest cards out there. (Its the software, not the data) If you have a weak power supply, I'd advise cards without a six plug supply cord up to cards that just barely need a six plug supply cord. You have to obtain the power draw stats and ignore any video cards that draw more than 75-80 watts. Even then, you can get away with lower resolution to save power. You will still have all the detail however. And if your LCD/LED monitor has a native resolution of 1920X108, it will upscale the image and fill every pixel.
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