Which is better ( GIGABYTE GA-H61M-S2P or GIGABYTE GA-H61M-S2P-B3 ) ?

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[FONT=&quot]Gigabyte [/FONT]GA-H61M-S2P
http://www.gigabyte.com/products/pro...px?pid=4293#ov
[FONT=&quot]Gigabyte[/FONT] GA-H61M-S2P-B3
http://www.gigabyte.com/products/pro...px?pid=3952#ov
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Thanks for voting!

 

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Please help

 

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Which is better ?