Software
OS: Windows 7 Professional
Intel Rapid Storage Technology: 14.8.0.1042
CrystalDiskMark: 5.1.2
ATTO Disk Benchmark: 3.05
TrimCheck: 0.7
Hardware
SSD: 2x INTEL 535 240,0 GB (SSDSC2BW240H6)
MB: Gigabyte Z97M-D3H
Chipset: Intel Z97
Transfer Mode: SATA/600
Configuration
Intel RST: RAID 1 (Mirror)
CrystalDiskMark: Settings -> Test Data -> Random
Results
Without RAID1 Seq Read: 498.2 MB/s
With RAID1 Seq Read: 938.4 MB/s
TRIM: does not work
Intel 535 Product Specification
Performance, Incompressible Performance, 240GB
Read Sequential 128KB: 510 MB/s
Write Sequential 128KB: 230 MB/s
Benchmark
CrystalDiskMark Test Size: 32GiB, RAID 1 (Mirror)
Seq Q32T1: 983.8 MB/s Read * 230.8 MB/s Write
4K Q32T1: 303.7 MB/s Read * 206.0 MB/s Write
Seq: 938.4 MB/s Read * 196.5 MB/s Write
4K: 17.8 MB/s Read * 91.9 MB/s Write
CrystalDiskMark
Test Size: 32GiB, RAID 1 (Mirror)

Test Size: 1GiB, RAID 1 (Mirror)

Test Size: 4GiB, RAID 1 (Mirror)
ATTO Disk Benchmark
Total Length: 32 GB, RAID 1 (Mirror)

AS SSD Benchmark
Test Size: 10GB * MB/s, RAID 1 (Mirror)

Test Size: 10GB * iops, RAID 1 (Mirror)

Compression-Benchmark

TRIM support on RAID 1 array
TRIM after 60s does not work

TRIM after 1 hour does not work

TRIM after 1 hour and reboot does not work

Linear Write / Read tests
Incompressible Performance (My test software)
Test Size: 100GB

to compare…
Western Digital (WD) Blue 500GB 2.5″ SATA 5400rpm (WD5000LPCX-00VHAT0)
CrystalDiskMark Test Size: 4GiB, without RAID

Questions and Answers
Is Intel RST hardware RAID ?
No, it is SoftRAID / FakeRAID.
What is Intel Matrix RAID ?
It has been renamed to Intel Rapid Storage Technology (RST).