Both the Adata SX8200 Pro and Samsung 970 EVO Plus use TLC NAND; as such, TLC-based drives won't have as high of a TBW (Total Bytes Written) limit as a drive using MLC NAND, which has higher endurance. This might matter if you were doing a lot of video editing (i.e. constantly filling the drive & overwriting many files in a single day); it doesn't matter as much if you are doing light editing (i.e. low amount during a week). If you are a major video editor, then you would be better off looking for a higher-rated drive, likely using MLC, as you could exhaust the durability of the SSD.
The cost of the TLC-based drives is cheaper than MLC, but the performance of the better ones tends to be good. Samsung has been doing SSDs for quite a while, and generally their drives lead the performance charts. Thus Samsung gets a lot of recommendations.
So if you're doing light video-editing, then the 1TB SX8200 Pro is great for less than your budget of $160. The specs for it even show higher write perf than the Samsung 970 EVO Plus. If you're doing heavy video-editing, then you really need to revise your budget and look at your total storage capacity needs. Then look at some MLC-based drives, like the Samsung 970 Pro.