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PCIe 3.0

bobdabiulder
By bobdabiulder
in Graphics Cards
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Hi!  Does PCIe deliver a fixed amount of energy?  I want to upgrade to a new graphics card, but as my computer is an OEM computer, I wish to know whether or not my new card would need more.  Let's say neither card requires any cables, just a PCIe bus.  Would one draw more energy?  Thanks!

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The PCIe slot can deliver 75W maximum, but it will only deliver as much as the device requires. A more power hungry device will draw more power through the slot than a less power hungry device.

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all PCIe versions can deliver 75W
if the GPU does not have any power connectors that means the power from PCIe will be enough

the 1.0, 2.0 3.0 PCIe versions only affect speed

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If it's an AMD CPU it only supports PCI 2.0 so I don't know if the motherboard would be PCI 2.0 but forward compatible with PCI 3.0 cards.

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My PSU is like 250 watts.  Using a PSU calc, the recommended PSU wattage jumps to like 310 with my system on the new GPU I want.  Gee, thanks Asus for all the breathing room!!  Now I would need like $100 more and another hour if I want to upgrade to anything decent for a graphics card.  

Again, thanks Asus for all the room to expand(sarcasm!!)

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