>>272561191
>>hurr, differences between reference cards and custom cards is because bottlenecks
Fucking hell just use clockspeed and memory speeds.
There's no voodoo magic with reference and vendor cards dude. You don't need a review of every single GTX 2080 under the sun to get an idea of their performance.

>>durr, why you need numbers on relative hardware performance? 
Building a PC is easy. Cope more.