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Plextor M6e 256GB M.2 vs Samsung 840 Pro 128GB

Joined
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Jacksonhole Florida
System Name DEVIL'S ABYSS
Processor i7-4790K@4.6 GHz
Motherboard Asus Z97-Deluxe
Cooling Corsair H110 (2 x 140mm)(3 x 140mm case fans)
Memory 16GB Adata XPG V2 2400MHz
Video Card(s) EVGA 780 Ti Classified
Storage Intel 750 Series 400GB (AIC), Plextor M6e 256GB (M.2), 13 TB storage
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I recently upgraded my system to Asus Z97-Deluxe with an i7-4790K, so I wanted to try out the M.2 socket to upgrade my storage speed a little. When NewEgg offered the bare M6e drive for 87 cents/GB - http://www.newegg.com/Product/Product.aspx?Item=N82E16820249046 - I took the plunge. My board recognized it right away, and I did a clean install of Windows 8.1 x64 and all drivers. I had seen an article that claimed that the M6e was actually slower in real world usage than a fast SATA 600 SSD, so I ran some benchmarks, and damn it, it 's true! On an interface that's theoretically 40% faster, the M.2 drive was slower than my 840 Pro (128GB, the slowest 840 Pro) in almost every test, except maximum sequential reads and writes and a couple others.
. M6e M.2 vs 840 Pro.jpg

Disappointing, but at least it doesn't feel any slower, and it cost about the same as a fast 2.5" SATA SSD. And I'm sure faster M.2 drives will follow. But if I replace it, what to do with the M6e? I might use it in a future mini-ITX build or maybe an NUC (if they ever include an M.2 slot), but that's about it. Any of you people who have a Z97 board with an M.2 slot, you should probably wait for something faster, or for a fast SATA Express drive. Maybe Samsung will release an M.2 drive soon with their new 3D NAND...
 
Joined
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System Name Thought I'd be done with this by now
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Haven't seen a point to SATA express, you lose 12Gb/s worth (2x 6Gb/s) of ports to get 10Gb/s Personally I'd rather raid at that point. But that might just be me. Have you tried other benches? ATTO, HD Tach/HD Tune, etc? I've never personally used the one you tested with.

The M6e drive lists faster reads and writes in both sequential and IOPS than the 840 pro. I'd want to verify the bench program I used wasn't simply running into an issue identifying the new interface.
 
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Really, I had been interested in trying one of those out and I was even hoping they were going to live up to the promises. Oh well, we probably just have to wait for some better quality ones to come out.
 
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