Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Space-RAM from the future is really the best kind you can get. But for us non-time-traveling and Earth-limited folk, places like OWC and datamem.com have good RAM that's been tested and guaranteed to work in Macs. I'd start there. Also, do a forum search for RAM, there's a lot of helpful threads on the topic.
 
Crucial has sort of a bad rep around here, though, since they use variable pricing or some nonsense where different people see different prices. I don't know if it's something they've stopped, but there are quite a few angry threads about it.

I got all my ram from DMS (datamem.com) or newegg, though that's a bit of a risk as far as compatibility goes.
 
Crucial has sort of a bad rep around here, though, since they use variable pricing or some nonsense where different people see different prices. I don't know if it's something they've stopped, but there are quite a few angry threads about it.

I got all my ram from DMS (datamem.com) or newegg, though that's a bit of a risk as far as compatibility goes.

i wouldn't buy crucial ram from crucial, but i would buy crucial memory from newegg. i have no idea, though, if you're buying from the uk. :eek:
 
Not that I buy RAM regularly or anything but i always buy from crucial.

I choose free shipping and it comes in 24 hours, and there RAM has always performed great for me.

It ain't the cheapest but as I don't buy it everyday il pay the small price for the piece of mind.
 
There is no 'Best'... A number of companies make good quality RAM.

What is more important than brand name, is getting RAM that is 100% compatible with your model Mac, with good seller support and warranty.

If you want to experiment with generic RAM (that is, RAM that the manufacturer does not state Mac compatibility for), fine, as long as you're good with doing your own testing and sending it back if it doesn't work. Make sure the seller will take it back for refund in the event.

The advantage of choosing a seller that guarantees compatibility is that you reduce the uncertainty and won't be out shipping or restocking charges if it has to be returned or replaced.

Crucial (and Kingston) only guarantee compatibility on their Mac-specific model numbers. A Crucial CT511222 and a Crucial CT12864AC667 from a discount seller may have the same specs, but Crucial guarantees compatibility only on the first. Similarly a KTA-MBP667/1G has Kingston's compatibility guarantee, their ValueRAM KVR667D2S5/1G does not.

If you are considering a internet vendor, check out their reputation here, and at resellerratings.com
 
I've always been partial to Corsair. I've built a few PC's using their stuff because it holds to spec and also overclocks well. When you're trying to get aggressive timings, good RAM is a joy. For Macs, the price from Apple when you configure your machine isn't too bad. After market is pretty high though, so I always shop newegg.com and read reviews to find people that have put the sticks in a Mac.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.