For a desktop computer running 24/24 : buy red or blue?

my desktop computer run 24/24 hours 7/7 days, with littles applications (video surveillance + P2P + backup in the night).

I wish to know if hard drives 1 TB Red (WD10EFRX) and Blue (WD10EZEX) have the same speed performances ?.

Note : I want to avoid Black series (WD1002FAEX) because of the higher noise it make.

Out of the two, the WD Red is the one that is promoted for working in a 24/7 use environment. Both have a 64MB cache, but the WD Blue should have the higher RPM speed.

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