Sequential write speeds on flash devices are usually much slower. This is the best performance you should expect from your disk. These speeds are what you would expect when copying/moving large files. Newer technologies such as UASP are coming out often that squeeze out every last ounce of performance out of your external storage devices. The single most important thing you should do is ensure you are using USB 3.0 or USB 3.1 devices. Your external hard disks and flash drives might have multiple factors affecting their performance which should be monitored closely. Using DiskMark you can see if the performance deteriorates due to age or due to bloatware on your system. Most newer MacBooks and iMacs come with solid state hard drives which are incredibly fast atleast when running normally. You are here: – CrystalDiskMark, IOMeter & HDTune 5.Why should I benchmark the performance of my disks? Here we see once again the SX8200 Pro with a clear advantage. Once again this one doesn’t reflect the maximum or burst performance numbers, but what you may experience over sustained read/write operations. One of the oldest benchmarks, but very reliable. ADATA claims 390K and 380K IOPS for both read and write respectively, while the numbers I recorded were closer to 360K and 350K.įinally we get to HDTune. Differences in the testing environment and components results i these discrepancies, but for the most part it’s well within acceptable limits. Here the numbers are close enough to what ADATA claim, but not quite there. Despite it’s age proves to be a reliable benchmark for SSDs. This level of performance is pretty much the limit for single PCIe Gen3 x4 drives (at least in the sequential read speed department). CrystakDiskMark confirms what is on the packaging. Do note that on the website it is claimed to be a 3,000MB/s write, but this is different from what is on the retail packaging which stipulates only 2,3GB/s for the 512GB model. It is delivering precisely what ADATA claims at 3,500MB/s read and 2,300MB/s write. In CrystalDiskMark is where we finally get to see the claimed peak performance of the drive.
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