Do I need the upgrade?

  petercs 13:14 04 Mar 15

I've read a hundred reviews (it feels like it, anyway!) and not found a definitive answer. I hope someone out there can help.

I think I'm going to buy a 27 inch i5 Imac. I'm not a gamer.I use Painter 2015 and Lightroom. I believe Painter likes Ram and cores ( my present laptop has 8GB Ram and an i7 M640 duel core processor (yeah, it's getting on a bit!) some of the brushes in Painter are unusable with this set up, especially the particle brushes, hence the hunt for a new computer. My question is - will the standard i5 Imac, (perhaps with extra Ram) do the job or do I need the i7 or maybe the i7 + Ram + upgraded graphics? It's not that I've got money to burn or anything, I just don't want to spend nearly 2K and be disappointed.

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