There's something screwy with how that benchmark is done on an 8 core processor. Comparing a quad core Ryzen 5 1500X at 3.5Ghz to a quad core i7 7700 at 3.6Ghz, the difference is 10423/10843, or a difference of 4%. The biggest difference comes down to AMD seems very conservative about their base clock speeds for Ryzen. Against each other at similar clocks, the single core performance is near identical.