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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

ATTO

 

Version and / or Patch Used: 3.05

 

ATTO is a timeless benchmark used to provide manufacturers with data used for marketing storage products.

 

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Sequential read/write transfers max out at 2611/1556 MB/s. Keep in mind this is our OS volume 75% full.

 

Sequential Write

 

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Both Samsung NVMe drive's (950 Pro and SM951 NVMe) ramp up faster than the rest of the test pool. The SM951 AHCI tops out with a slightly higher sequential write performance than the Samsung NVMe drives. The P3700 enterprise SSD we included in our charts for a point of comparison delivers the highest sequential write speed.

 

Sequential Read

 

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These test results point directly to why we believe the 950 Pro will provide superior performance to the Intel 750 in a typical enthusiast environment. The 950 Pro outperforms the competition by as much as 8x with small sequential read transfers of up to 1024KB.

 

 

Anvil Storage Utilities

 

Version and / or Patch Used: 1.1.0

 

Anvil's Storage Utilities is a storage benchmark designed to measure the storage performance of SSD's. The Standard Storage Benchmark performs a series of tests; you can run a full test or just the read or write test, or you can run a single test, i.e. 4k QD16.

 

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Scoring

 

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The 750 Series SSDs put up better overall scores than the 950 Pro. However when we dig a bit deeper, we can see the 950 Pro is delivering far better random read performance at consumer queue depths than the 750 Series. The 950 Pro's read score is the highest we've ever seen from a single SSD in this test. The 750's dominate in the random write department.

 

So, what matters more? With SATA SSDs, drives with the best 4K QD1 (incompressible) random write performance tend to be the best overall performers in a consumer environment. With NVMe SSD's we are finding that the opposite is true, 4K QD1 (incompressible) random read performance seems to be the best performance indicator available from synthetic testing.

 

(Anvil) Read IOPS through Queue Depth Scale

 

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The Samsung NVMe SSDs lead the field from QD1-QD32 (consumer queue depths). This test illustrates perfectly how much better random read performance is on the NVMe interface than AHCI. Compare the maximum IOPS of the 950 Pro to that of the SM951 AHCI. The two drives are nearly identical with the exception of the interface. The 950 Pro can deliver nearly double the read IOPS of the SM951 AHCI drive.

 

(Anvil) Write IOPS through Queue Scale

 

samsung-950-pro-2-pcie-gen-3x4-nvme-ssd-review_19

 

The Intel drives deliver much better random write performance than the Samsung's. We will see how this shakes out with our consumer workload tests.

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