SATA3 SSD or PCI-E SSD which is better to choose?

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SATA3 SSD or PCI-E SSD which is better to choose?

Actually I want to be smart)
SATA3 SSD for a 60-120 gig system, take a
PCI-E SSD for a cache, also no more than 500GB.
hdd sata3 under the base and other inf. There will be 4 discs 2 + 2 if anything .. and if the money remains, then sas vz ..

How do you like such a bunch? Someone already put on the server?
Maybe just a SATA3 SSD for cache? Will there be a performance difference? Just for the price, what else ..
I didn’t understand much about reliability .. but SATA3 SSDs are better than PCI-E SSDs .. they burn out, burn out, etc.

Answer 1

So what problem are you solving?
SSD SATA3 I use as caches in droves. And so, and so.
The performance is satisfactory.
In my opinion, PCI-E SSD is definitely better, but the average person does not need it at this stage.
And difficult people do not go to the toaster. :)