Motherboard-video card compatibility question

By Llu
Jul 18, 2011
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  1. I'm trying to build a computer based off the TechSpot guide for an Enthusiast PC. They have recommended the ASRock P67 Extreme4 motherboard and the Radeon HD 6870 video card. I want to make sure the graphics card I've chosen is compatible with the recommended motherboard.


    Graphics Card:

    I thought I understood that compatibility was based on the Expansion slots/Interface of the two (the PCI Express slots).

    NewEgg says the graphics card is a PCI Express 2.1 x16, while the motherboard has PCI Express 2.0 x16 slots. I am not sure if these need to match exactly in order for the two to be compatible.

    VisionTek makes a Radeon HD 6870 with PCI Express 2.0 x16 ( I don't know what is a good manufacturer to purchase for this video card, so help on that would also be appreciated (in addition to my compatibility question).


    (Sorry for the weird links--TechSpot won't let me add real links to my posts until I have a count of 5 or more..)
  2. Technochicken

    Technochicken TechSpot Paladin Posts: 729

    Yes, they are compatible. PCIe is backwards compatible, so you could even use that video card with a motherboard with only PCIe 1.x slots and it would still work (with bandwidth reduced to 1.x speed).

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