Which SSD to choose from the two options?

Question

Solid State Drives

Welcome all!
I decided to upgrade my computer and remove all hard drives from it. There is a mat. Gigabyte B360M HD3 board , Core i7-8700 processor and Intel 600p 128 GB NVME drive. I want to replace this drive with a more capacious one. I looked closely at two models:
1. ADATA XPG SX6000 Lite 1TB
2. Plextor PX-1TM9PeY
The price speaks in favor of the first. This is the cheapest drive with normal (non-QLC) memory. In favor of the second - the form factor. It seems to me that the Plextor is more technologically advanced due to the large heatsink, plus it will not occupy the M.2 slot on the motherboard, which will allow me to leave the current SSD in the computer and use it for file history, for example. But in the second case, it is confusing that the plexor is the onlyAn SSD in a similar form factor makes me wonder why? Maybe this solution has drawbacks, because of which other manufacturers did not go this way? Well, I would like to know how these two drives behave in general, because the speed and correctness of the drive depends very much on the firmware.
Yes, it is clear that their performance differs by one and a half times, but it seems to me that these differences will be noticeable only under a microscope, so I discard this criterion in choosing.
I also watched Samsung, but there the price, it seems to me, is unreasonably high.
Thanks to all!
Added: Chose Plextor. Reviews show that this is the only NVMe drive that does not throttle.

Answer 1

In general, there are no strong differences, the drives are of the same class.
The first one should be faster, but the second one should have a better heat sink.
The first has practically no RAM, but a huge SLC cache, the second has gigabytes of RAM but the SLC cache is small.
In general, it's easier to toss a coin here.

plextor is the only SSD in this form factor

Well, there are many. Just not the most popular format among the people. It is more difficult to shove it into a laptop, and it is not always convenient to put it into the case.