Background: I was perfectly happy with an ADATA SX8200 PRO 1TB so I decided to purchase another one, 512GB this time.
The drive was supposed to have Micron TLC Nand and Nanya DRAM. Which, my 1TB SX8200 PRO did indeed. However, the 512GB one has UNIC2 NAND and Samsung DRAM. It's a clear bait and switch to me with reviews showing the 512GB Model hitting the advertised 3500/2300 read/write speeds while the one I received hit just 3200/2200 at most with worse 4KiB Q8T8 but better 4KiB Q32T1 performance.
I've come across another post stating that their P34A80 came with UNIC2 chips as well. Not here to call out just Adata or Silicon Power for this bait and switch but try to find out what these Unic2 chips are and just how much of a performance/longevity impact these have in the long run.
Also, buyer beware for anyone who's looking at these SSDs.
what speeds does your not-different from advertised hit? hmm, bad comparison. 1TB gonna be faster, even if identical.
The 512GB version is advertised to hit 3500/2300 on CrystalDiskMark but this UNIC2/Samsung revision is doing just 3200/2200. Here's a link to someone who reviewed the Micron TLC/Nanya DRAM version and they got close to what's advertised.