T5810 Compatible CPU E5-2666 V3
I have a chance to buy a CPU for my 5810 but it's not on any listing I could find. It's a e5-2666 v3. 10c/20t From what I read it was originally manufactured for Amazon. It's only 50.00 and seems like it might be able to do my cad work and also some gaming. I was going to install an RTX 2060 or possibly my Titan with windows 10. Anyone have any experience with this chip? Is it compatible with one of these work stations?
First, let me say that I am far from an expert on this topic; with that out of the way, I'm curious to get confirmation on my suspicions. I would think, from the documentation I found here (Dell 5810 data sheet) stating that these towers support up to 14 cores and the CPU you found being a 10C unit, that CPU should work. I would love to know how this worked out for you.
Really for your use the 1650v4 would probably be best especially if it's something you'll leave stock and just use it. The 1691 is total over kill but hell for the price. And I bet with throttle stop you could get a 3.8ghz all core turbo which would be plenty fast. Note if you care the e5-16xxv3 cpus can be over clocked. The e5-26xxv3 and the e5-16xxv4 cannot.