The i7-8510Y is the only one with the specified 617 graphics, but thanks for pointing out that difference. Maybe they have a slightly lower-spec custom i5 SKU from Intel? I'd be surprised though if it wasn't a Y-device nevertheless.

Looks like it's landed in Intel ARK now - i5-8210Y:

https://ark.intel.com/products/189912/Intel-Core-i5-8210Y-Pr...

Thanks for posting - that's a pretty big yawn part. The Haswell in my current old Macbook Pro (a wonderful laptop) beats that easily enough.

The only thing custom in it is the naming, the GT2 is a single slice iGPU there is nothing to enable in it over the 615 which is already a full slice my bet is that if there is any difference is that the 617 has a boost clock of 1100 instead of 1050mhz or something silly like this.

i5 and i7 are the same chip with HT enabled on the latter but disabled on the former.

It’s still the same Amber Lake dies which are the same as KBLY.