I want to know as to what real / measurable performance gain can be expected using RAID 0 array of two HDD for OS/applications versus if they are installed on a stand-alone HDD.
My machine configuration is as follows.
Motherboard - ASUS P5K PREMIUM/WIFI-AP LGA 775 Intel P35 ATX Intel
HDD - 250 GB x 2 SATA (planned for the RAID 0 array). There are other IDE based HDD also in the machine.
DVD Drive - Samsung Internal SATA DVD Writer
Memory - 8 GB (Two kits of Patriot Extreme Performance 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model PDC24G6400LLK)
OS - Windows 7 64 bit RC
When I was setting up my Core i7 system I did a quick test by putting a couple of WD Green drives into a RAID 0 array vs. non-RAID. The time to boot 64-bit Windows 7 was 17 seconds for the RAID 0 array vs. 22 seconds for a single drive. That's the time from when the Windows splash screen is displayed until the logon prompt appears.