Most people, I would think, would get 512GB or above anyway. It may just be a supply issue that caused Apple to go with single 256GB NANDs. The tests were run again with Blackmagic Disk Speed Test, a utility that tests the ability of a specific computer to output video at varying resolutions and frame rates. But someone pointed out to me that 128GB NAND chips are being made much less anyway, and the majority of them are made for phones. UPDATE : An earlier version of this article showed results from ATTO Disk Benchmark which were incorrect and misleading. So in this tutorial, I will show you how to install and enable the Blackmagic Disk Speed Test on a PC. MaxTech, for one, is already using this to say that Apple made the M2 machine worse. It's likely Apple is using 2 NAND chips for every capacity over 256, so as long as you get a model with 512GB or above, you should not see a reduction in speed. So basically, it appears Apple is using a single NAND chip for 256GB models, and likely 2x 256GB chips for 512GB models, which is the reason for the faster speeds with 512GB. Meanwhile, zollotech got very fast speeds on his 512GB M2 model. Zoneoftech also got similar results on his 256GB model. He opened it up, and showed that Apple is now using one 256GB NAND chip for it, while the M1 has 2x 128GB NAND chips. MaxTech got a write of 1463 MB/s and read of 1446 MB/s, give or take a few MB between each run. These tools meet several requirements and are worth considering. I've done some investigating and discovered what I think the difference is. Among the top-rated apps are CrystalDiskMark, Blackmagic Disk Speed Test, and ATTO Disk Benchmark. Essentially, these mimic some of the files I work with daily, and I can time how long it takes the very small/small/medium/large file sets individually, or as a whole, and compare the results of one SSD to another to determine how this affects my real-world performance.Okay, there are a couple YouTubers who have done BlackMagic Disk Speed Tests on the M2 13inch MacBook Pro, and have found that the speeds are SLOWER than the M1 13inch. For example, I have my own benchmark folder, which contains four different types of file sizes totaling about 30 GB of many very small Excel/Word/Visio documents, many small AACs and JPEGs, some medium-sized datasets/visualization outputs, and several large video files and datasets. You could try running your own benchmarks based on your own usage. The results show this drive will handle all 1080P. Thanks in advance for any forthcoming replies. Has this utility been discontinued Note: I'm using Windows 10. This carries significant real-world implications given how much one's personal workload could be oriented in one direction (while at the same time all Users use heterogeneous file sizes, to some extent.) To me, this limits most of the generalizability of the test, and makes it more of a fun novelty than anything else. Benchmark Results: The SanDisk Extreme V2 1TB drive topped out at around 894 MB/s read and 859 MB/s write on the Disk Speed Test by Blackmagic. I'm trying to locate the Blackmagic 'Disk Speed Test' utility, however, all I can find is the Blackmagic RAW Speed Test that gives me fps information rather than the desired MB/s (Write/Read). I do not believe it tests across multiple transfer sizes - even though this can hugely affect measured performance: To my understanding, Blackmagic uses incompressible data. QuickBench.) Simple things like the size of the SSD (larger sizes = higher write speeds, usually), to the size of the transfer files, to the amount of free space on the SSD, to the programs running in the background, to the (recovery) pauses in test intervals, to whether or not indexing is enabled or not (as the OS may try to index the test file), to the compressibility of the data can have a significant impact on outcome - then there's the technical variables such as the workload's IO intensity and the testing's queue depth, to which my own understanding is limited-at-best. Note that my knowledge here is limited - someone smarter than me could correct me if I make a mistake or further elaborate if they care to.ĭifferent benchmarks of the same SSD can show very different results (this example shows the difference between the benchmarks of the 256 GB MBP nTB using Blackmagic vs. The only thing we can say for certain is that your SSD is really fast, and that the write speeds you are getting in the (specific) Blackmagic App for an SSD of your size is NOT unusual.
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