I already have a nvidia gtx 1050 and at the time wasn't aware that my CPU wouldn't be able to fully utilize the new GPU. I asked a friend what cpu could my computer handle and he recommended I get a new motherboard and CPU and even found what he thinks would work for me.
CPU
https://www.newegg.com/Product/Product.aspx?Item=N82E16819117824&cm_re=i5_8400-_-19-117-824-_-Product
motherboard
https://www.newegg.com/Product/Product.aspx?Item=N82E16813157809&ignorebbr=1&cm_re=coffee_lake_motherboard-_-13-157-809-_-Product
Would these help utilize my gpu and more importantly even work with a dell xps 8700?
CPU
https://www.newegg.com/Product/Product.aspx?Item=N82E16819117824&cm_re=i5_8400-_-19-117-824-_-Product
motherboard
https://www.newegg.com/Product/Product.aspx?Item=N82E16813157809&ignorebbr=1&cm_re=coffee_lake_motherboard-_-13-157-809-_-Product
Would these help utilize my gpu and more importantly even work with a dell xps 8700?