what's the difference between these 2 8 gigs?

eurotrotter

hi guys

whats the difference between the 2 8gb options here:

https://picasaweb.google.com/109623600487373073384/RecentlyUpdated?authkey=Gv1sRgCL3p25WegPi1vgE#slideshow/5739892112060040994

there is a big difference in price too?

any ideas?

Sad Professor

One is a single 8GB chip, the other is two 4GB chips, hence the cheaper price.

Your Macbook only has two slots, both of which are already occupied.

eurotrotter

could i put in 2x8gigs?

1. i heard that it will operate at 8gig performance even if i get the 16gig ram?

2. can i get x1 8gb slot & x1 4gb slot?

Sad Professor

eurotrotter wrote: »

could i put in 2x8gigs?

1. i heard that it will operate at 8gig performance even if i get the 16gig ram?

What model is it? When did you buy it? If it's a Sandy Bridge MBP it will support 16GB.

2. can i get x1 8gb slot & x1 4gb slot?

Sure.

eurotrotter

thanks for your help sad prof.

i was always under the illusion you had to have 2 slots, which were exactly the same size.

so you're saying you can mix and match?

i bought my macbook in December 28th 2011 direct from apple in cork, since my uncle works there.

what do you mean by a sandy bridge mbp?

Sad Professor

Years ago they had to be matched but not anymore. You still get a slight performance boost by doing so.

Sandy Bridge is the CPU. If you got your Mac in 2011 then that's what it is.

eurotrotter

would you recommend the 8gig/12gig or 16gig?

Sad Professor

It depends whether you need it. What are you doing?

macsauce

Im running 16gb on mine to speed up video rendering in FC pro X and i noticed a big improvement (bought late 2011). If you are going to install chips of differing speeds just be sure to put the faster chip in the lower slot.