just scrolled through and noticed you got incorrect info again.
those tests that 4k8kw10 posted are correct, but twisted out of context.
what's more important are the simulated real life tests that anandtech does. ie their "destroyer", "heavy" and "light" workloads.
light tests are most indicative of the usual desktop loads that 99.9% people will run.
you can see the graphs from their website so i won't bother posting here again. except this quote:
basically with the adata sx8200, with a full (or full-ish) drive...it becomes as slow as (or even slower than) a sata3 ssd...lol
good way to spend money. not.