You could use something like crystaldiskmark and stress the drive when it's writing/reading more than 8 GiB and you should see the performance drop quite a bit. This type of performance is what's important for moving big files, I've seen the Kingston Savage drive beat a Samsung 850 so people's idea of a good drive seem to be different from mine. None the less, it's important to know that SSD's are primarily for the faster access times anyways, that upgrade alone from a disk is well worth it. I have to applaud Samsung for great marketing though, they're a big name, and are a safe bet, so I completely understand their situation, but those ram disk speeds are just ridiculously misleading, you're losing data if power goes out..