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Samsung 970 EVO Plus 500GB SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: Jan 30, 2019 7:25 pm
TweakTown Rating: 92%Manufacturer: Samsung

512GB Class Performance Testing

 

Product Comparison

 

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The Samsung 970 EVO Plus joins several new high-performance models recently released. The most notable is the ADATA SX8200 Pro, MyDigitalSSD BPX Pro, Western Digital Black SN750 and HP EX950 (latter two not in the test group today).

 

 

Sequential Read Performance

 

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In the 512GB class, the new 970 EVO Plus is significantly faster than the previous generation with sequential large-block data reads. The new drive brings the performance up to 2019 standards with an aggressive slope between queue depths 1 and 2 before leveling off.

 

Sequential Write Performance

 

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The EVO Plus walks away from every other drive in the sequential write test using bursting 128KB blocks. The 970 EVO delivers right around 2,500 MB/s peak, but the new EVO Plus pushed the envelope to around 3,300 MB/s.

 

Sustained Sequential Write Performance

 

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The sustained write test shows the 500GB EVO Plus uses a less aggressive SLC cache size, but we don't need the test to tell us that. Samsung lists the TurboWrite (SLC) size in the specifications. There is a fix level and a dynamic level that shrinks and grows depending on the amount of data you have on the memory.

 

Random Read Performance

 

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Samsung managed to increase the random read performance with the EVO Plus over the previous generation, but this new series is not as quick as those with Intel Micron Flash Technologies NAND are. There is a massive gap between the ADATA SX8200 Pro with the new Silicon Motion, Inc. SM2262EN controller paired with Micron 64-layer TLC memory. In this capacity, the EVO Plus doesn't surpass the MyDigitalSSD BPX Pro 480GB at low queue depths.

 

Random Write Performance

 

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The 500GB EVO Plus outperforms the previous generation in random writes but still struggles to keep pace with the SX8200 Pro and even the Crucial P1 using 4-bit per cell flash. In consumer workloads, random writes usually land in the SLC buffer. We're surprised to see the EVO Plus not dominating this test with the new 5th generation V-NAND technology that was designed to deliver 2-bit per cell level performance.

 

70% Read Sequential Performance

 

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Samsung's massive sequential performance leads come through in the mixed workload test using 70% reads. This workload is similar to many workstation application data feeds to the storage system. In our 1TB review of the 970 EVO Plus, we stated this is the first workstation-class 3-bit per cell SSD and we stand by that for the 500GB model as well.

 

70% Read Random Performance

 

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The new 970 series only competes with the drives released in 2018 and earlier when it comes to mixed random data. The new ADATA SX8200 Pro walks away from the group thanks to the new SM2262EN controller and 64-layer IMFT memory.

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