For the lazy:The footnotes regarding SPECInt_2006 performance differential comparing the 6950X and 7900X doesn't inspire much confidence.
" Up to 10 percent faster multithread performance1 over previous generation Up to 15 percent faster single-thread performance2 over previous generation"
...footnotes:
"1 Based on SPEC*int_rate_base2006 (n copy) comparing Intel® Core™ i9-7900X X-series processor (10C20T) vs. Intel® Core™ i7- 6950X Processor (10C/20T). 2 Based on SPEC*int_rate_base2006 (1 copy) comparing Intel® Core™ i9-7900X X-series processor (10C20T) vs. Intel® Core™ i7- 6950X Processor (10C/20T)"
Its a small uplift, but remember it comes at huge cost savings 1700->1200. Lets hope for reasonably mb prices.