Sandy is still awesome but visibly slower then the others already. Looking at this test
https://translate.googleusercontent.com/translate_c?act=url&depth=1&hl=en&ie=UTF8&prev=_t&rurl=translate.google.com&sl=auto&tl=en&u=http://pclab.pl/art64700-19.html&usg=ALkJrhhROKRypT-8RoprekcPrF08ZNCsow
to i5 broadwell clock to clock (4500MHZ) 2500k/2600k are loosing already like 30% in GTA V (TW3 2500k-20%, 2600k-10%, watch dogs 2500k-30%, 2600k >5%). Unfortunatelly they don't have broadwell i7 to compare directly with 2600k. Skylake must be faster than that (I guess/hope
) which is gonna give even bigger difference.
Also a bit weird people always say i7 doesn't make visible difference, but in this test it does (some games). It's only 1080p but in 4k might be even more beneficial? Even if it's 10-20% it's worth it imo (10% here, 10% with OC graphic card....).