I am using Lightroom 4.1
on a MacPro
Processor 2x3 GHz Quad-Core Intel Xeon
Memory 10GB 667 Mhz DDR2 FB-DIMM
Graphics ATI Radeon X1900 XT 512MB
Using camera raw files from 5DMKII
I have upgraded my ram from 4GB (which was plenty for Lightroom3) to 10GB of ram and there has been a marked improvement in the work flow speed of lightroom 4. Has any one done comparisons between 10GB and higher say 16GB or 24GB? i am guessing that there is an optimum amount and it is not the case that more RAM means more speed.
No optimum. Lightroom is a 64-bit application, which means it can use as much RAM as you can give it (orders of magnitude above what is currently physically possible). So more RAM does in fact mean more speed.
I have 12 GB and a Xeon Quad.
But on my system Lr rarely reaches 10 GB, so you should be fine with 10 GB.
Regarding your system specs I think it would be more important to look at your hard drive configuration than at buying more RAM.
Re hard drives, please read my post of today on this thread: http://forums.adobe.com/message/4496194#4496194
It's post # 9.
Thank you for the comments and suggestions,
separating my images and cataloge will take a bigger reshuffle. But I have moved the LR cashe, i can't say i have noticed a massive improvement in speed but it is certainly no slower and is no extra bother.
Great tip thank you.
There's a good discussion of LR speed here:
Agreed, but much more than 8G probably won't bring significant improvement unless you've got an awful lot else going on. I've had LR, PS (with several large images open), dozens of web browser windows, two 1G virtual machines - and still not used more than 8G of memory (out of 12 on my machine).