Originally posted by mee Are you sure about that? I think an i5/8GB is your functional minimum.
That said, if you have the money for a 645Z setup.. a few hundred extra for an i7 and 16GB isn't going to break the bank I suspect. And memory is CHEAP right now, so little excuse not to have at least 8GB if not 16! But I still think they're niceties and not requirements. i5/8GB is your functional minimum, then 16GB, then i7 as necessities.
What I meant here is that you want a decent quad-core processor—2C/4T, as in a Core i3, may not be enough. An i5 (4C/4T) will certainly do here, but let's not forget that photo editing of this scale is very computationally demanding.
---------- Post added 07-20-15 at 06:56 AM ----------
Originally posted by mee The max ram in Windows 8 Home is well above this (I think 128 GB iirc) so it is only an issue with Windows 7 and below.
Windows 8.1 (Core) and Windows 10 Home can handle up to 128 GB. Windows 8.1 Pro and Windows 10 Pro support 512 GB (!) of memory, as well as two physical CPUs (two sockets).
---------- Post added 07-20-15 at 07:47 AM ----------
Did some more testing using the Monument Valley image in
the PentaxForums.com official review. With the standard sharpening, contrast, and saturation adjustments applied, a bit of defringing, and high-quality NR enabled (for experimental purposes; not needed or recommended in this shot),
RawTherapee needs about 5.4 GB peak memory to process the image and save it to a best-quality JPEG. (When processed correctly, 645Z output is nothing short of breathtaking 😮.)
While RawTherapee has high memory requirements due to its 96-bpp (32 bits per channel floating-point) pipeline, you definitely need
at least 8 GB of memory to be able to perform any non-trivial post-processing work on 645Z RAWs. I have no experience with Photoshop or Lightroom, but I can imagine these programs have similar memory demands with images this large.
—DragonLord
Last edited by bwDraco; 07-20-2015 at 05:08 AM.