4/17/2021 0 Comments Samsung Ssd Rapid
Surely it would make sense to compare it to the vanilla SSD840.When you purchase through links on our site, we may earn an affiliate commission.
Samsung Ssd Rapid Series Of NewStacked with a series of new features and 19 nm, three-bit-per-cell NAND, we benchmark four models and make a recommendation.Simply, it uses a gigabyte of system memory for caching hot data.![]() Unlike other RAM-based caching solutions, RAPID keeps cached data persistent between reboots by writing information to the SSD itself. Samsung Ssd Rapid Software Is OnlyThe software is only available in the next version of Samsungs Magician. But by the time 840 EVOs are available, the necessary build should be downloadable. We got our hands on an early version, and although we didnt have much time for testing, we did run some preliminary numbers. The only requirements are a compatible SSD and Magician 4.2. With those satisfied, click the Enable button to reboot your system. Of course, this means youre not accelerating the boot process. But with a fast SSD under the hood, this isnt something we were concerned about. You might have missed the orange text at the bottom of our Magician screen capture, but RAPID is specifically prevented from interacting with multiple drives. Its not clear whether this is an artificial or truly technical limitation. The quickest way to verify that RAPID is on and working is to run a canned benchmark. Magician has its own test module, but we went ahead and used CrystalDiskMark for verification. Heres the before shot of a 250 GB 840 EVO on a Haswell-based test platform. Now, for the RAPID-enabled shot: The performance increase is profound. But we still had to wonder if RAPID was just a marketing gimmick tacked on to a comprehensive management suite. Without much time to delve into the specifics, we chose one workload thats indicative of real-world performance, since it actually derived from real-world performance: our Storage Bench v1.0 trace with RAPID enabled. Mean Service Time (including read and write IO times combined) drops in half, which is stellar. Read service times actually slide back a bit, perhaps from the overhead incurred when requested data isnt in the cache. Im convinced we need to take a closer look at this in the days to come. For instance, its not clear if the extra cache layer is problematic in the event of power loss. After all, with RAPID enabled you have the DRAM cache, the SSDs DRAM, the Turbo Write buffer, and then the triple-level-cell storage itself, creating a fairly complex hierarchy.
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