Originally Posted by AikenDrum
For most games, I would say it wouldn't be a massive difference. However, there are some ambitious folks in the industry who do the sort of things you see in Rage, where massive textures are constantly being streamed dynamically from disk to memory, causing you briefly to see blurryland when you swing the camera around to an under-cached part of the scene. Any game where an open world is being streamed, and especially if you turn detail up to an ultra setting, would benefit from a big SSD raid. That, or a boatload of RAM, so at least the data's still in the windows file cache the second+ time you need to fetch it.
Personally, I'm just incredibly impatient, and waiting 2-3s less for a scene transition actually matters to me.
Thus, I have 8 Samsung 830's waiting for a home on this board, or perhaps some other board with an add-on controller if this one doesn't materialize some day soon. Sick and wrong, I know...
If nothing else, RAID is just a good way to get large SSD capacity without paying the premium you find on capacities over about 256GB. Games are always getting bigger, after all.
I must point out that most games today are smaller than oh, lets say 30 GB. As we are talking here about x79 platform then one could assume that the machine already has 64 GB of RAM, its after all one of the key points of having that platform in the first place in my opinion. Even if you are not running your game from RAMdisk (which might make sense with that amount) Windows 7 SuperFetch is actually pretty competent and gaming, I would assume, is not something that happens unexpected in a gaming machine
Thats memory page from Windows 7 task manager resource monitor. The green bar is actually in use, dark blue is superfetch cache holding HDD/SSD content and light blue is actually empty memory. It's after writing just some stuff in latex for few hours (use this machine for everything), however, superfetch knows that in the evening I usually play a match or two of Tribes even if I work longer than usual so I would presume most of this dark blue bar is Tribes. To be fair, I don't know if pretty fast loading times for me are a result of superfetch or bcos I also are using SSD caching (which should, in theory, provide approx 80% of the speed of running stuff directly from a SSD).
Even if you put your whole Steam library on SSD's running 8x64 GB should be quite plenty and even 8x32 GB would be most likely quite adequate for the games you are actually using. There are performance differences ofc but I would assume that with 8x RAID0 array only place you might be able to find these differences is in HDD benchmarks as for all practical purposes only difference between 8x64 and 8x32 GB is the price and the size.