Ram combination?

[AshB]

Can I use a 1GB stick of ram with a 512 stick in my Macbook or do they both have to be the same?

Thanks in advance.

P.S. The 1GB is from my old Powerbook G4, is it compatible.

 

[ElDiabloConCaca]

Can I use a 1GB stick of ram with a 512 stick in my Macbook or do they both have to be the same?

Yes, you can mix sizes. I hear if you used matched size RAM, though, there's some sort of memory throughput improvement. Can anyone confirm this?

P.S. The 1GB is from my old Powerbook G4, is it compatible.

No, it is not compatible with your new MacBook.

 

[AshB]

Oh right, thanks for your help.

 

[jbarley]

Yes, you can mix sizes. I hear if you used matched size RAM, though, there's some sort of memory throughput improvement. Can anyone confirm this?

Using matched memory pairs can speed things up if the system has the right chipset and calls for DDR or DDR2 ram.

DDR stands here for Double Data Rate. It is a technology that transmits data on both sides of a tact signal.

jb