HDD raid 0, sata 2 vs sata 3 - help

Hey guys, I have motherboard Asrock Z77 extreme 4, and I can have only one Raid 0 with sata3 ports (using it for SSD Raid 0). Second raid 0 can be achieved only with Sata 2 ports.

Since I am planing to buy 2x HDD (Seagate Barracuda 7200rpm) for game recording and make Raid 0,
what would be impact on speed performance lose with 2x HDD (raid 0) sata2 compared to sata 3?

Sorry for my bad English :(

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  1. None, these Barracudas won't be able to saturate SATA2.
    Bear in mind, that raid0 is not recommended, because of the possible data loss in case of failure of one of the drives.
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