Thinking about upgrading my late 2012 iMac. Just wondering if there will be a substantial gain in processor and hard drive speed . I have added ram to this computer and it appears to be doing OK at this time . Not that I want to do it in the next month but if I'm going to do it I need to be planning accordingly . Hopefully if there's a significant change I would be willing to wait for that change to occur before making a purchase . I know the new ones have thunderbolt II which does have its advantagesis and I think the hard drives are faster than what I have . There could be some other significant gains just not aware of them at this time.
Will The new Apple computers allow you to exchange the ram (sticks). Was able to do that on my old computer I believe I ended up with 20 gig .
Thanks


