Boot and load times
To test system boot and game level load times, we busted out our trusty stopwatch. The entire system partition was housed on the i-RAM during the system boot test, but there was only room for each game's install files for our level load tests.
The i-RAM allowed our test system to boot faster than any other configuration, but only by a few seconds. The RAID arrays look a little slow here because of the extra time it takes for the motherboard to initialize them during the boot process.
In-game level load times benefit more from the i-RAM than the Windows XP boot process, but to be honest, we were expecting a little more. Clearly, the storage subsystem isn't the only bottleneck that constrains game level load times.