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Samsung 950 Pro M.2 PCIe Gen 3x4 NVMe SSD Review

By: Jon Coulter | m.2 SSDs in Storage | Posted: Oct 22, 2015 2:00 pm
TweakTown Rating: 100%Manufacturer: Samsung



Version and / or Patch Used: 3.0 Technical Preview


CrystalDiskMark is disk benchmark software that allows us to benchmark 4k and 4k queue depths with accuracy. Note: Crystal Disk Mark 3.0 Technical Preview was used for these tests since it offers the ability to measure native command queuing at QD4.







Looking at sequential read performance, we are hitting close to 2400 MB/s. Samsung specs the 950 Pro 512GB at 2500 MB/s using CDM. There are two reasons we are not hitting spec, first this is our OS volume, and it's 75% full. Second, we are using a different version of CDM, which measures sequential performance at QD1.


The 950 Pro easily outperforms the Intel NVMe drives sequentially and with random 4K read data at queues up to QD32.




The 950 Pro delivers better sequential write performance than the 750 Series SSDs. However, the 750 Series SSDs easily outperform the 950 Pro when writing random 4K data.





Version and / or Patch Used: 1.7.4739.38088


AS SSD determines the performance of Solid-State Drives (SSD). The tool contains four synthetic as well as three practice tests. The synthetic tests are to determine the sequential and random read and write performance of the SSD.






So much of AS SSD's scoring comes from 4K-64 thread performance (which is nearly irrelevant in a consumer setting) that overall scoring may not reflect what can be expected in terms of real-world performance. We still use AS SSD because it's a very popular test that many enthusiasts use and scoring aside, it does provide important data.


With our synthetic testing out of the way, let's take a look at our moderate workload testing.

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