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Samsung XP941 512GB M.2 PCIe SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: May 20, 2014 7:18 pm
TweakTown Rating: 92%Manufacturer: RamCity

HD Tune Pro - Sequential Performance

 

Version and / or Patch Used: 4.55

 

samsung_sp941_512gb_m_2_pcie_ssd_review_52

 

Today, we're using the 512GB capacity size charts, but we're added the Plextor M6e 256GB to the mix.

 

I think this chart really shows the sequential read performance differences between the Samsung XP941, what we expect from M.2 PCIe 2-lane devices, and the normal SATA SSDs on the market today. The Samsung XP941 is a significant leap in storage performance.

 

samsung_sp941_512gb_m_2_pcie_ssd_review_53

 

The sequential write performance chart shows the same significant leap forward. The Plextor M6e is faster than the SATA protocol drives, but the leap is only around 100 MB/s. The Samsung XP941 is around 200 MB/s faster using 64kB blocks like what this test uses.

 

 

HD Tach - Sequential Write Performance after Random Writes

 

Version and / or Patch Used: 3.0.4.0

 

samsung_sp941_512gb_m_2_pcie_ssd_review_54

 

After running the XP941 through write tests with random data, we ran HD Tach to measure sequential performance with 128kB blocks. The write performance dropped to just over 400 MB/s at the lowest point. We've used the same random workload and had performance drop to less than 10 MB/s on some SATA drives.

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