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Samsung SM951 512GB M.2 PCIe SSD Review (Page 7)

Chris Ramseyer | Jan 30, 2015 at 08:42 am CST - 1 min, 42 secs reading time for this page
Rating: 98%Manufacturer: RamCity

Futuremark PCMark 8 Extended - Consistency Test

Version and / or Patch Used: 2.0.228

Heavy Usage Model:

Futuremark's PCMark 8 allows us to wear the test drive down to a reasonable consumer steady state and then watch the drive recover on its own through garbage collection. To do that, the drive gets pushed down to steady state with random writes and then idle time between a number of tests allows the drive to recover.

Precondition Phase:

1. Write to the drive sequentially through up to the reported capacity with random data.

2. Write the drive through a second time (to take care of overprovisioning).

Degradation Phase:

1. Run writes of random size between 8*512 and 2048*512 bytes on random offsets for 10 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 8 times, and on each pass increase the duration of random writes by 5 minutes.

Steady state Phase:

1. Run writes of random size between 8*512 and 2048*512 bytes on random offsets for 50 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 5 times.

Recovery Phase:

1. Idle for 5 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 5 times.

PCMark 8's Consistency test provides a ton of data output that we use to judge a drive's performance. Here we see the three states of performance for the select SSDs, light use, consumer steady state and worst case.

Storage Bandwidth - All Tests

Samsung SM951 512GB M.2 PCIe SSD Review 64 | TweakTown.com

The SM951 showed complete dominance up to this point in the synthetic tests and this next set of charts will show real-world performance with real consumer application workloads. Again, the SM951 surpasses the other native PCIe M.2 devices on the market, and not by just a smaller incremental margin either.

Storage Bandwidth - Heavy Load

Samsung SM951 512GB M.2 PCIe SSD Review 65 | TweakTown.com

Under heavy workloads the SM951 nearly quadruples the M6e products. The XP941 products hold up well under heavy loads, but nowhere near the same level as the SM951.

Storage Bandwidth - Typical Consumer Load

Samsung SM951 512GB M.2 PCIe SSD Review 66 | TweakTown.com

In typical consumer workloads, the margin shrinks, but the other products are still well under the performance of the SM951.

Last updated: Nov 15, 2019 at 01:16 pm CST

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ABOUT THE AUTHOR - Chris Ramseyer

Chris Ramseyer started his career as a LAN Party organizer in Midwest USA. After working with several computer companies he was asked to join the team at The Adrenaline Vault by fellow Midwest LAN Party legend Sean Aikins. After a series of shake ups at AVault, Chris eventually took over as Editor-in-Chief before leaving to start Real World Entertainment. Look for Chris to bring his unique methods of testing Hard Disk Drives, Solid State Drives as well as RAID controller and NAS boxes to TweakTown as he looks to provide an accurate test bed to make your purchasing decisions easier.

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