![]() ![]() The heavily queued speeds at least suggest there is little penalty to multiple programs doing random disk access at the same time. The NVMe SSDs are around 50% higher than that. Hitachi 7K1000 1000GB (SATA 2.5") 7200rpmĬrystalDiskMark Reads: Seq Q32T1 113 MB/s, 4k Q32T1 0.65 MB/s, 4k 0.27 MB/sįor single thread random reads, SATA seems to be around 30MB/s ball park. Next up are M.2 drives used as boot drives.ĬrystalDiskMark Reads: Seq Q32T1 1596 MB/s, 4k Q32T1 717 MB/s, 4k 45.8 MB/sĬrystalDiskMark Reads: Seq Q32T1 2181 MB/s, 4k Q32T1 573 MB/s, 4k 37.9 MB/s Here's some bench numbers I took previously:ĬrystalDiskMark Reads: Seq Q32T1 558 MB/s, 4k Q32T1 384 MB/s, 4k 31.2 MB/sĬrystalDiskMark Reads: Seq Q32T1 556 MB/s, 4k Q32T1 286 MB/s, 4k 29.3 MB/sĪbove two are my bulk storage SSDs in my main system. I will only tell you that I made many SSD reviews and in most cases PCMark was showing +/- 10% difference between SATA and PCIE SSD. Run benchmark like PCMark 8 or 10 and you will see how big difference is between SSD in popular applications and 3D tests which can cover most games. Difference is like 3-4 seconds max between SSD while most system files are cached and drive is barely using them so after boot, drive can speed up almost only additional applications. Also buying SSD because system boot is faster seems stupid. Simply in most cases it doesn't matter what SSD you have, what matters is that it's SSD. We were actually talking about it many times on OCF and there were many posts with results just maybe on a bit older SSD. Where can you use NVMe SSD ? In server/workstation applications, databases etc. Here you have the difference which really matters in most applications. Typical new generation TLC SATA SSD has about 30-34MB/s. The fastest SATA SSD have about 40MB/s random 4k read. ![]() In general the fastest NVMe SSD have about 50MB/s random 4K read ( at home IOPS and deep queues mean nothing ). The same effect you can get setting RAID0 on couple of SATA SSD.īecause everything is cached then read bandwidth counts much more than write. Most NVMe SSD have only high sequential transfers while random are barely better. Games the same as most applications which are using many small files base on random transfers, not sequential. ![]()
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