Alright the 3900X chip benchmarks look totally out of whack. Maybe you guys just got an unfortunately crappy 3900X, as it was doing way worse than even the 3800X. Hardware Unboxed released their video and basically saw 2% improvements from each X => XT version, so it really does seem like a silicon lottery thing. With the retail markdowns in most 3000X series chips, the cost of going up to the 3000XT chips just doesn't seem worth it for the small benefit. Especially if you exclude those crappy 3900X benchmark results.