All MLC and TLC SSDs will slowdown a little as they get fuller (not enough to be particularly noticeable in most cases, though, as long as one leaves 20-25% free space). The QlC SSDs (such as the 860 QVOs) will slow down considerably when they pass 50% full.
Yes, but consider how the 850 EVO readspeed/file-age graph looks and check how a similar test ran on a 6 year old Intel 520 series SSD looks like - which is much smoother:
This same drive is 81% full:
So by asking buyers to test I was actually curious whether it looks more like this or like my 850 EVO which I posted above.
Last edited by coffeeplus; 05-10-2019 at 04:05 AM.