Not sure how to answer your question more broadly, but happy to provide some data. I ran CrystalDiskMark within a Windows 10 VM running on my E3 Xeon TS140. The hard drive is a Samsung SSD 850 EVO 120GB.
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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) : 5653.807 MB/s
Sequential Write (Q= 32,T= 1) : 144.931 MB/s
Random Read 4KiB (Q= 32,T= 1) : 599.689 MB/s [146408.4 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 247.703 MB/s [ 60474.4 IOPS]
Sequential Read (T= 1) : 3098.443 MB/s
Sequential Write (T= 1) : 149.109 MB/s
Random Read 4KiB (Q= 1,T= 1) : 70.047 MB/s [ 17101.3 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 65.852 MB/s [ 16077.1 IOPS]
Test : 1024 MiB [F: 0.1% (0.1/79.9 GiB)] (x5) [interval=5 sec]
Date : 2016/05/07 19:58:31
OS : Windows 10 Professional [10.0 Build 10586] (x64)