Why does my late 2012 27" iMac show 1333MHz ram when I've put in 1600MHz sticks?

[pubjoe]

The more appropriate question is why not just shell out $80 more and have 32GB of fast RAM? You spend $2200+ on the computer, why would you not spend an extra 4% and put 4 of the same chips in there? It's about the most inexpensive, and cost effective upgrade around these days.

Personally I agree and have done exactly that (with cheaper ram though). But for many people (myself included even), the last 8-16GB is used more rarely. The first GB is massively cost effective, with each additional GB slightly less so. It would be an even cheaper upgrade to make in a couple of years.

I think at this point though, the OP might as well just do so.

 

[jmpage2]

Personally I agree and have done exactly that (with cheaper ram though). But for many people (myself included even), the last 8-16GB is used more rarely. The first GB is massively cost effectiveness with each additional GB slightly less so. It would be an even cheaper upgrade to make in a couple of years.

Not necessarily. Sometimes older RAM actually becomes harder to find and commands a price premium as the industry has moved on to the latest/greatest.

RAM right now is kind of at "all time" low prices. I would not be surprised if in a couple of years it was more expensive.

However I do agree with the general advice of putting in the 16GB of RAM and then seeing how the system is doing before adding the last 16GB.

 

[pubjoe]

Not necessarily. Sometimes older RAM actually becomes harder to find and commands a price premium as the industry has moved on to the latest/greatest.

RAM right now is kind of at "all time" low prices. I would not be surprised if in a couple of years it was more expensive.

However I do agree with the general advice of putting in the 16GB of RAM and then seeing how the system is doing before adding the last 16GB.

Yes you are right there. I bought an entire PC with 2GB of DDR1 ram because it was less than the ram I needed sells for alone. That was after 10 years though.

Hard to say if the trend will stay the same or change to be honest. Especially with the current move toward sealed units for mass users. It's an interesting thought.

 

[cthadeusantos]

Few years ago I Research about this because I wanted to buy a new memories to my imac 27" late 2012.

First of all, You need download tech specs from your original manufacturer then read latency and speed tables, take a note.

Now you go to website and check memory tech specs you want, you need combine latency between different manufactures.

For example, Hynix has latency 9, speed 1600 and Corsair has latency 9, speed 1333 and latency 10, speed 1600, your Corsair will work at speed 1333 because the latency.

I have no idea why this happen but I know about this because I read all tech specs and the end, I bought Kingston official memory from ebay after read tech specs from http://www.kingston.com/en/memory/search?DeviceType=&Mfr=APP&Line=iMac&Model=80276

I hope it helped you.

 

[maflynn]

I hope it helped you.

Given that the person wrote this thread over three years ago, I'm assuming he's already moved on from the ram issue

 

[cthadeusantos]

Given that the person wrote this thread over three years ago, I'm assuming he's already moved on from the ram issue

I helped him (and others) with the track to understand why this happen, not to buy. I choose bad words.
Have a nice day (or night) and best regards.