Highpoint Rocketraid 3520 with 8xMtron R0

[NeedMoMegaHurtZ]

OK so this is just one data point.
Compare the above (Mtrons above) to the Intel SLC SSD (below) iometer performance at the same settings.
The intel drive certainly does do better in iometer vs the mtron mobi's - about 50% better.
Does the improvement in satisfying a queue of I/O requests outway the seq. read/write difference?
(Seg read/write for 8 mtron 3000's should be - ~800/640 and 2 intel x-25m's should be ~500/140 based on the specs and linear scaling in Raid 0?)
Probably depends on your application.

You have posted the wrong graph. It is about 400-500% better (not 50% better) at equivalent 64k block size

It really depends on what scenario, what apps you are using and how they are being used

Remember those results are single drive results, on the same controller. How they scale with different controllers is a whole other topic