Iometer - Maximum IOPS
Version and / or Patch Used: Iometer 2014
We use Iometer to measure high queue depth performance. (No Partition)
Max IOPS Read 8-Workers QD 256
Max IOPS Write 8-Workers QD 256
Our test system can churn out 53,000 more read IOPS than Samsung's specification of 300K IOPS. Look at it like this; you will spend $1 per 10K read IOPS when you purchase a 512GB 950 Pro. Looking at write IOPS, our test system is just able to hit the specified 110K write IOPS. The 750 Series SSDs with their enterprise DNA can easily exceed the 950 Pro's maximum IOPS.
Iometer - Disk Response
Version and / or Patch Used: Iometer 2014
We use Iometer to measure disk response times. Disk response times are measured at an industry accepted standard of 4K QD1 for both write and read. Each test runs twice for 30 seconds consecutively, with a 5-second ramp-up before each test. We partition the drive/array as a secondary device for this testing.
Avg. Write Response
Avg. Read Response
The 750 series SSDs have superior write response times, and the 950 Pro superior read response times. This test is performed at 4K QD1 utilizing Iometer 1.1.0. This is the same test Samsung uses to quote 4K QD1 read/write performance. Samsung specs up to 12K/43K IOPS, we hit 14.4K/56.5K IOPS with the very same test, indicating that Samsung's specifications are very conservative.
DiskBench - Directory Copy
Version and / or Patch Used: 188.8.131.52
We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) composed primarily of incompressible sequential and random data as it's transferred from our DC P3700 PCIe NVME SSD to our test drive. We then read from a 6GB zip file that's part of our 28.6GB data block to determine the test drives read transfer rate. Our system is restarted prior to the read test to clear any cached data, ensuring an accurate test result.
Write Transfer Rate
Read Transfer Rate
The Intel 1.2TB 750 outperforms the 950 Pro in this testing delivering ever so slightly superior transfer rates. Interestingly enough, the SM951 AHCI also delivers superior transfer rates in comparison to the 950 Pro. This outcome is almost certainly because we did not secure erase the 950 Pro prior to this test. Both the 1.2TB 750 and the SM951 AHCI were secure erased prior to this test.
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- Page 1 [Introduction, Drive Specifications, Pricing and Availability]
- Page 2 [Drive Details]
- Page 3 [Test System Setup and Properties]
- Page 4 [Synthetic Benchmarks - ATTO & Anvil Storage Utilities]
- Page 5 [Synthetic Benchmarks - CrystalDiskMark & AS SSD]
- Page 6 [Benchmarks (Trace Based OS Volume) - PCMark Vantage, PCMark 7 & PCMark 8]
- Page 7 [Benchmarks (Secondary Volume) - Max IOPS, Disk Response & Transfer Rates]
- Page 8 [Benchmarks (Secondary Volume) - PCMark 8 Extended]
- Page 9 [Benchmarks (Secondary Volume) - 70/30 Mixed Workload]
- Page 10 [Maxed-Out Performance (MOP)]
- Page 11 [Final Thoughts]
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