I have a XFX Radeon HD 7770 Ghz Edition, and I have the ASUS M5A97 for a motherboard. I want to get a second 7770 and crossfire them. ASUS' site says the motherboard has "Quad-GPU CrossFireX Support!" I don't know if I can because the motherboard only has one pci express x16 slot, but it does have a pci express x4 slot I just want to make sure. I'm not rich and I don't want to blow $160 on something that may not work. So, can someone tell me if this isn't possible, has reduced performance, or it just like having an x16 slot because the crossfire bridge is doing all the work would be helpful. And if someone can confirm that CrossFireX is the same as CrossFire just new that would be really nice. Thanks for help in advance and the links to the parts are below.
GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16814150599
MoBo: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131767
ASUS Site MoBo: http://www.asus.com/Motherboards/AMD_AM3Plus/M5A97/
GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16814150599
MoBo: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131767
ASUS Site MoBo: http://www.asus.com/Motherboards/AMD_AM3Plus/M5A97/