Sorry DGINGERI, but I have 5 850's in RAID0 on an LSI controller and I do not get these sequential numbers. Here's a quick Crystal Mark 32GiB file test run.
Sys specs-i76850@4545Mhz 32GiB Dominator Platinum @3264 15/16/15/32/1T Asus x99-A II
CrystalDiskMark 5.1.2 x64 (C) 2007-2016 hiyohiyo
Crystal Dew World : http://crystalmark.info/
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* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
Sequential Read (Q= 32,T= 1) : 1630.320 MB/s
Sequential Write (Q= 32,T= 1) : 1296.243 MB/s
Random Read 4KiB (Q= 32,T= 1) : 341.523 MB/s [ 83379.6 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 321.884 MB/s [ 78585.0 IOPS]
Sequential Read (T= 1) : 1627.498 MB/s
Sequential Write (T= 1) : 1138.999 MB/s
Random Read 4KiB (Q= 1,T= 1) : 33.176 MB/s [ 8099.6 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 95.120 MB/s [ 23222.7 IOPS]
Test : 32768 MiB [L: 19.4% (231.3/1192.4 GiB)] (x5) [Interval=5 sec]
Date : 2016/11/22 11:56:31
OS : Windows 10 Professional [10.0 Build 14393] (x64)