A few of you have been wondering what kind of performance one could expect from two of Samsung's Spinpoint F1 750GB drives. We've seen the results of the 1TB HD103UJ which utilizes only three high-density platters for exceptional throughput data rates.
I just did a fresh install of Vista Ultimate x64 on these new drives with Service Pack 1 and all updates installed. I am using the 750GB Spinpoint F1 Desktop Edition drives, which are labeled HD753LJ (as compared to the HE753LJ Raid Edition that no one seems to be selling). Here are my RAID0 results from the JMicron JMB363 RAID controller on my Abit IP35-Pro
*UPDATED RESULTS* After complete file defragmentation and consolidationHDTach 3.0.4.0 Results:
(2x) Samsung Spinpoint F1 HD753LJ 750GB RAID0
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*NEW* IOMeter Results:

HDTach 3.0.4.0 Results:T
(1x) 1TB Samsung Spinpoint F1 HD103UJ
(right click > View Image)

As you can see, there's a significant performance increase that definitely justifies the cost of two 750GB drives over a single 1TB drive. In addition, each drive has a 32MB cache, which gives up to 64MB of total cache when used in RAID.