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Samsung 750 EVO 120 & 250GB SATA III SSDs Review

By: Jon Coulter | SSDs in Storage | Posted: Feb 16, 2016 3:00 pm
TweakTown Rating: 96%Manufacturer: Samsung

Moderate Workload Model

 

We categorize these tests as indicative of a moderate workload environment.

 

PCMark Vantage - Hard Disk Tests

 

Version and / or Patch Used: 1.2.0.0

 

The reason we like PCMark Vantage is because the recorded traces are played back without system stops. What we see is the raw performance of the drive. This allows us to see a marked difference between scoring that other trace-based benchmarks do not exhibit. An example of a marked difference in scoring on the same drive would be empty vs. filled vs. steady state.

 

We run Vantage three ways. The first run is with the OS drive 75% full to simulate a lightly used OS volume filled with data to an amount we feel is common for most users. The second run is with the OS volume written into a "Steady State" utilizing SNIA's guidelines. Steady state testing simulates a drives performance similar to that of a drive that been subjected to consumer workloads for extensive amounts of time. The third run is a Vantage HDD test with the test drive attached as an empty, lightly used secondary device.

 

OS Volume 75% Full - Lightly Used

 

samsung-750-evo-120-250gb-sata-iii-ssds-review_25

 

 

OS Volume 75% Full - Steady State

 

samsung-750-evo-120-250gb-sata-iii-ssds-review_26

 

Secondary Volume Empty - FOB

 

samsung-750-evo-120-250gb-sata-iii-ssds-review_27

 

There's a big difference between an empty drive, one that's 75% full/used, and one that's in a steady state.

 

samsung-750-evo-120-250gb-sata-iii-ssds-review_28

 

The important scores to pay attention to are "OS Volume Steady State" and "OS Volume 75% full." These two categories are most important because they are indicative of typical of consumer user states. When a drive is in a steady state, it means garbage collection is running at the same time it's reading/writing. This is exactly why we focus on steady state performance.

 

This is an example of planar TLC done right. The 750 EVO's smoke the planar TLC based competition, when data is on the drive and when the drive is in a steady state. The 120GB 750 EVO is able to generate slightly better performance than the 250GB model which in our opinion is a remarkable feat. Empty performance is essentially irrelevant, but we show it anyway just because we like to see massive results just as much as the next guy.

 

 

PCMark 7 - System Storage

 

Version and / or Patch Used: 1.4.0

 

We will look to Raw System Storage scoring for evaluation because it's done without system stops and, therefore, allows us to see significant scoring differences between drives.

 

OS Volume 75% Full - Lightly Used

 

samsung-750-evo-120-250gb-sata-iii-ssds-review_29

 

samsung-750-evo-120-250gb-sata-iii-ssds-review_30

 

This test backs up our Vantage results. The EVO's all deliver class-leading moderate workload performance. In this case, the 250GB 750 EVO outperforms the 120GB model, as we would expect. The 850 EVO wins the test with a score of over 8000, but the 750's are right there nipping at its heels. The non-EVO portion of our test pool gets handily outperformed yet again.

 

 

PCMark 8 - Storage Bandwidth

 

Version and / or Patch Used: 2.4.304

 

We use PCMark 8 Storage benchmark to test the performance of SSDs, HDDs, and hybrid drives with traces recorded from Adobe Creative Suite, Microsoft Office, and a selection of popular games. You can test the system drive or any other recognized storage device, including local external drives. Unlike synthetic storage tests, the PCMark 8 Storage benchmark highlights real-world performance differences between storage devices.

 

OS Volume 75% Full - Lightly Used

 

samsung-750-evo-120-250gb-sata-iii-ssds-review_31

 

samsung-750-evo-120-250gb-sata-iii-ssds-review_32

 

PCMark 8 is the most intensive moderate workload simulation we run. With respect to moderate workloads, this test is what we consider the best indicator of a drive's performance.

 

Moderate workload performance is really by far the most important aspect of a consumer SSD, and this is why we prefer the EVO series over anything on the market, because it delivers like no other. Even the mighty 850 Pro cannot match the EVO's in this test. The non-EVO drives in our test pool are once again overwhelmed.

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