Difference between EVGA T1 version of 680i mobo?

[Boogityboo04]

I was looking at This mobo from EVGA and noticed tiger had the New T1 version for $20 more.

Does anyone know what the difference between these mobos is and is it worth paying the $20 extra for whatever the new T1 version is? They also have things listed like the A1 version.

 

[raybay]

Usually those slight upgrades fix or repair some flaw or device driver... also you can often learn more by a Google search or just reading the specs at EVGA on each.
These slight upgrades are usually important enough to pay the extra 20 bucks.