Hi animationlife, this is what I know. But I'm not an expert! I don't know if you can mix your Ram. I personally have two sets of 16GB. If you want to test your pc and if you have your old pc with you, just try to render the same sequence with your old and the new machine and compare. What are your old pc specifications? AE is not going to use all your cpu cores, so it's better to have a high cpu clock speed (your cpu runs at 4.2ghz which is really good) rather then a lower clock speed but more cores. So the first thing you want to look is your old cpu clock speed. If you download a software like HWMonitor you can see how much your cores work while rendering. You should see there is one core making all the hard work and the other cores working less intensely. HWMonitor also tells you how much GPU you are using. There are some effects that now are working on your GPU (fractal noise, fast blur, levels and others... ). In the features we are all hoping to see AE using more cores and GPU. I bought a pc with the i7-6800k cpu recently, which runs at 3.4ghz. Then I realized the 4.2ghz i7-7700k cpu, which is what you have, would have been better for AE. If you want to test your pc outside AE, I think there are some benchmarks you can do. Don't know very much about this. ( If you want to increase your cpu performance you can overclock your cpu, but here you need some expert help. And I'm not an expert. I overclocked mine from 3.4ghz to 4.2ghz and I really see some improvement here. You could mildly overclock your cpu too. There are some pro and cons in overclocking, so get a lot of information first and help from someone who knows how to do it! Your pc would use more power, it would get hotter and less stable too... so you have to know what you are doing.) Hope this helps you. Hopefully someone else joins this discussion.
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