Storage Choices
I would check some reviews of the 840 EVOs for the performance difference between the capacities, eg anandtech here:
And this link from tomshardware for SSD RAID 0:
http://www.tomshardware.com/reviews/ssd-raid-benchmark,3485.html
In a nutshell IMO:
Usually a bigger capacity SSD will be better in nearly every way than the same with a lower capacity.
RAID 0 will give you better performance in some cases but in others may actually be worse. Plus, it has the usual hassle being RAID 0.
So you should check what exactly you want, if RAID 0 or rather a bigger SSD.
I personally would go for the bigger one because:
1. usually the $/GB goes down with capacity increase (one bigger is cheaper than two smaller ones)
2. with SSDs it would not be worth it for me to go RAID 0 because I rather want a reliable, low latency drive than ultra fast read/write speeds; and I do not trust that SATA 3 RAID 0 would be reliable enough, let alone worth the hassle to set up and maintain.
That said - I have two 500GB HDDs in Raid 0 right now, though they show some signs of problems already for some time. So I am not against RAID, just would not do it with SSDs.
Hope that helps you make your decision ![]()

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