20:36
the 128 GB is 4x larger, and the 1 TB is 32x larger :P
still, the intelligence of the NAND controller and the sophistication of the NAND itself is way better in the 850 Pro than that cheap-ass thing
I wouldn't even trust the 128 GB model of that MyDigitalSSD
to be free of bottlenecks under high demand
the read is fine; the random small-throughput writes are probably excellent too
but large volumes of (sequential OR random) writes are going to stack up in RAM or block (aka stacking up in the OS disk queue and decreasing system responsiveness)
the cheapest terabyte SSD seems to be the 850 EVO
not sure I'd trust something that differs from the Pro only in NAND endurance and performance, though
it's like buying a car that you know is going to die after 50,000 miles