They later posted a table of 2013 Mac Pro CPU Upgrade Benchmarks with stock 3.5GHz/6-Core vs 3.7GHz/6-Core, 3.3GHz/8-Core and 3GHz/10-Core CPUs via DIY installs.
(See link for pix, notes and benchmarks.) And they later confirmed the 2013 Mac Pro's CPU is Upgradeable by swapping in an 8-Core, 3.3GHz w/25MB cache processor. Sponsor OWC posted Teardown photos of the 2013 Mac Pro that shows they're still using a socketed CPU.
Late 2013 Mac Pro Disassembled (Socketed CPU is Upgradeable) ( Send Your Tips, Upgrade Reports, Questions to news at ) Mac Upgrades/Mods | CPU Upgrades | Storage | Video | Audio/HT | Apps/OS/Network | Recent News for Friday, December 20th, 2013 Go to Current News Page 2013 Mac Pro Upgrade Guides, Tips and Tech Articles.
