Intel 665p 1TB NVMe SSD Review – Newer QLC NAND

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ATTO & CrystalDiskMark

ATTO v4.00.0f2

ATTO is one of the oldest drive benchmarks still being used today and is still very relevant in the SSD world. ATTO measures transfers across a specific volume length. It measures raw transfer rates for both reads and writes and places the data into graphs that can be very easily interpreted. The test was run with the default runs of 0.5KB through 64MB transfer sizes with the total length being 256MB.

ATTO Disk Benchmark:

Benchmark Results: On ATTO Disk Benchmark we see that the 665p 1TB SSD reached speeds of up to 2.01 GB/s read and 1.86 GB/s write at a Queue Depth of 4. This drive is rated at reached speeds of up to 2 GB/s read and 1.925 GB/s write, so we are very close to those when testing this SSD as a primary drive. 

CrystalDiskMark 7.0.0 x64

CrystalDiskMark is a small benchmark utility for drives and enables rapid measurement of sequential and random read/write speeds. Note that CDM only supports Native Command Queuing (NCQ) with a queue depth of 32 (as noted) and shows the highest score of five runs.


Benchmark Results: The Intel SSD 665p 1TB drive maxed out at 2,171.61 MB/s read and 1991.99 MB/s write in the standard sequential write test that is done at Q8T1. Random 4K performance topped out at 220,800 IOPS read and 247,300 IOPS write. This drive is rated at 2,000 MB/s read and 1,925 MB/s write for sequential performance, so we were finally able to hit those numbers by using CrystalDiskMark!  

Let’s look at some other benchmarks!

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