You can get a laptop with a Xeon these days, and dual socket workstations are plentiful. They're getting the 8+ core Xeons in many cases now: http://shop.lenovo.com/us/en/laptops/thinkpad/p-series/p70/

36-core workstation based on Xeons: http://www.mediaworkstations.net/i-x2.html

Makes your MBP look pretty cheesy when you could have something like that under your desk. Then again, for developing rails and angular apps, you don't actually need it, and the PCI-E SSD makes a bigger difference in practice (you can RAID 0 NVME SSDs in workstations too though).