It's alright, you're wrong anyway.

I'm wrong especially when replying to your post... I shouldn't do it. Ever.
But I admit I should have wrote 9000Mhz instead of 4500.
When you talk about memory OCs they're all operating at the same memory clock, with the exception of the 1080tis which have faster memory.
This is incorrect... Google about Zotac amp extreme 1070 default memory freq(hint - it is more than 8000). There are 1080 with 2 types of memory, 1080ti with 2 types, 1060...
over and out...