What's your question?
I thought I laid that out pretty clearly.
It boils down what you really want. If you want performance, get the WD Black
I mentioned the issue is noticble performance, to distinguish it from the benchmarks that may or may not be noticable for gaming.
Yes, the black is benchmark faster than the green. How noticable is it in gaming? Also the Samsung has twice the throughput and slightly slower I/O. What's noticable between them?
If you want storage, get the 2TB green.
Obviously the 2TB is 2TB compared to the 1TB drives. That's a 'nice to have' but I'm asking about other things - noticable quiet, noticable speed.
If you're using the drive as primarily a storage drive, you're not going to notice any performance issues.
But I said I'm using it for gaming, not storage, primarily.
I thought I laid the question out and address these things.