Ok so, after watching a recent LTT video of a wife build off with BitWit, they mentioned how one of the builds may be not getting the full performance from installing their GPU in the second, as oppose to the top-most, PCI-E slot. My question is two fold; First, I'm running an RTX 2070 into a MSI MPG Z390 Gaming Pro Carbon AC LGA 1151 (300 Series) in my second PCI-E 3.0 x 16 slot for purely ascetic reasons (as oppose to the top-most). By doing this am I sacrificing any performance? Secondly, my understanding is a PCI-E 3.0 x 16 slot is a PCI-E 3.0 x 16 slot is a PCI-E 3.0 x 16 slot. Am I making incorrect assumptions? Did I perhaps misinterpret the video I watched and there is a reason specific to that MOBO used in the video why one PCI-E was preferential to another? Side note, I could not see in the video is the GPU in question was installed into a x-16 or x-1 PCI-E. Any help and/or education on the subject would be greatly appreciated. Thank you for your time and knowledge.