A:Answerif that motherboard is a lga1200 socket then you can put any 10th or 11th gen cpu in it. if its lga1151(im not going to google it for you) then no this cpu will not fit in its socket
A:AnswerHi Cody, the Intel Core i9-10850K processor requires a motherboard with a LGA 1200 socket and 400 series chipset. The Gigabyte B365 HD3 uses the LGA1151 socket with 300 series chipset. Best Buy does carry motherboards compatible with the new 10th generation Core series processors which you can check out here https://www.bestbuy.com/site/computer-cards-components/motherboards/abcat0507008.c?id=abcat0507008&qp=processorsocketsv_facet%3DProcessor%20Socket~Socket%20LGA%201200
Thank you for choosing Intel.
A:AnswerI came from a 3800x id say the single core improvement was nice but I'm not too sure about losing two cores if you would be using the cpu for mostly multithreaded applications