Just about to receive my new desktop PC which comes with built a built in Killer AX1650 wireless 2x2. I'm using a ROG AC5300GT router and my current PC uses a PCI 88 4 antenna setup with an -40 (often below) signal from a second floor. Should I expect similar or better performance from a built in unit with no antenna due simply to being an AX (even though my router is not)? Trying to determine if should retire my PCI 88 or move it over to the new machine even though the new machine has AX built in. Also, not sure if I'll be giving up ASUS particular acceleration for capabilities such as beam forming, which improve signal and latency but can often be manufacturer specific.