1 person found this helpful
The only thing I can advise you is that this is a complicated issue, with many factors, including hardware, the size of your images in megapixels (not megabytes), the size of your monitor in pixels, and the types of editing you do.
One thing that seems to bring a lot of computers to a crawl is if you perform lots of brushing and/or lots of spot healing on each photo, turning on lens corrections/transforms with brushing and/or spot healing slows things down further, while using 4K or larger monitor and large image sizes (let's say 24 MP or larger). Doesn't seem to matter if you have a fast processor and or not, people report poor performance.
So, to be very specific, if you're going to request the information above, you also need to know the other issues I mentioned (monitor size, image size, editing that is done) in order to evaluate the situation. If someone just says I have processor X and my Lightroom runs fine, that's an incomplete piece of information. If someone says I have processor Y, and my Lightroom is unusably slow, that's an incomplete piece of information.
And to complicate things even further, many people suspect that there are issues that no one has pinpointed yet, causing poor performance.
My own information: i7-4770K, 16 GB RAM, standard HD monitor, 16 megapixel RAW images, only small amounts of brushing and spot healing, Lightroom runs fine.
I should have included that information, I knew there was something I was forgetting.
My current setup is an AMD A10-7879k APU with 8GB RAM, 1080p monitor, 16MP RAW, and like you, small amounts of brushing and next to no spot healing - mostly use exposure sliders and detail panel etc.
I will say that maybe lightroom has never slowed for you because your CPU is still 'just' a 4 core? Who knows.
P.s - is there any way I can edit in the info to my original post?
Edit original post ... I don't think you can after someone has replied to you.
I know there may be some people that disagree with me, but I don't think you need to worry about getting a new computer / new CPU with 4 cores, if you stick with the 1080p monitor, 16 MP RAW and no brushing or spot healing.
I'm not too worried about getting a 4 core CPU as an upgrade. My options are a 4 core 8 thread or a 6 core 12 thread. They both offer near identical single thread performance but obviously the 6 core 12 thread offers much better multicore performance.
Dammit Adobe making me possibly settle for second best!