Any bottlenecks from a i7 3770, AS rock z77 Extreme4, and Crossfire r9 290x?

jaimepianoman

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I'd like to upgrade my system instead of starting from scratch to save money. I'm hoping I can get some high end last gen parts and crossfire my MSI r9 290x in order to get either triple screens with high fps and ultra settings at 1080 or maybe 4k on one screen with high fps and ultra settings. Here's what I have that I plan to keep.

1200W Raidmax PSU

MSI Lightning r9 290x (I'm looking to crossfire with Sapphire Radeon R9 290X 8GB Tri-X OC)

i7 3770 cpu 1155 chipset

I plan to purchase an AS Rock z77 extreme4, Sapphire Radeon R9 290X 8GB Tri-X OC, and an AZZO Solano 1000 Full size tower. Are there any bottle necks I may be overlooking between the mobo, cpu, or PCIe 3 slots?

I've been building here and there for about three years, but college keeps me out of the tech world for large gaps at a time. Any help would be MUCH appreciated.
 

jaimepianoman

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There's one other thing I'd like to ask, on the intel site it says the processor can either handle 1 PCIe 3.0x16 or 2 PCIe 3.0x8. Do you do you think crossfire r9s are powerful enough to saturate PCIe 3.0x8 enough to the point of bottlenecking?
 

jaimepianoman

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Thanks for your help! :)