Difference between PC3-10800 and PC3-12600

[Admin_]

I've wanted to upgrade my laptop with RAM so I went out a got some, what's confusing me now is, is there any difference between PC3-10600 and PC3-12800 as the RAM that crucial recommends is the first one yet the latter one is the one I've bought so will it still work or not?
Thanks!

 

[cin19]

The 2nd one speed is faster than the 1st one, if the crucial recommends the 1st one that means your laptop ram can only run at the 1333MHz, even you got the 2nd RAM (1600Mhz) will still run at 1333MHz.

 

[Admin_]

The 2nd one speed is faster than the 1st one, if the crucial recommends the 1st one that means your laptop ram can only run at the 1333MHz, even you got the 2nd RAM (1600Mhz) will still run at 1333MHz.

I don't mind if it doesn't but I'm just glad it'll work haha, I didn't think my laptop would be able to handle it at all thus rendering both of the ram sticks useless, thanks!