![]() From a system resource perspective, we configured each VM with 16 vCPUs, 64GB of DRAM and leveraged the LSI Logic SAS SCSI controller. We are reviewing the 2TB version of the Predator GM7 drive and will be comparing it to the following PCIe Gen4x4 drives:Įach SQL Server VM is configured with two vDisks: 100GB volume for boot and a 500GB volume for the database and log files. For our added BlackMagic Disk Speed Test performed in Windows, we use our self-built StorageReview desktop. We do this because many of the common consumer benchmarks don’t adequately capture end-user workload profiles. A large focus is put on drive latency across the entire load range of the drive, not just at the smallest QD1 (Queue-Depth 1) levels. NVMe is tested natively through an M.2 to PCIe adapter card in the edge-card slot. Predator Storage GM7 SSD Specifications Modelįor database and synthetic testing, we leverage the Lenovo ThinkSystem SR635 server, equipped with an AMD 7742 CPU and 512GB of 3200Mhz DDR4 memory. The GM7 does include HMB (Host Memory Buffer) and SLC cache to help provide burst performance without the DRAM by reducing the time it takes to read and write data however, gains in performance will depend on the size of the cache and the workload being performed.īacked by a 5-year warranty, the Predator GM7 goes for roughly $49.99 (512GB), $89.99 (1TB), and $159.99 (2TB). That said, DRAM-less drives like the GM7 often have slower performance, such as during large sequential transfers. This makes it a very attainable drive for those with strict budgets and mainstream use cases. ![]() The new Predator drive does not use a DRAM cache, which typically helps drive down costs and lowers power consumption (in this case, a maximum of just 5.67 W) compared to an SSD with DRAM. That said, there are plenty of other parts of the world where this drive will ship.Īs far as performance goes, the GM7 is quoted to reach up to the usual 7,400MB/s read and 6,300MB/s write as well as up to 100,000 IOPS. While this NAND type is permitted to be imported as a packaged product in numerous countries, it is expected that OEMs in the US will choose to avoid using it in their products. There’s also a bit of import confusion around this drive as well, as the GM7 uses controversial Chinese YTMC NAND. It should be noted that it can be somewhat unclear which company it actually belongs to, as it could be either branded as an Acer or HP drive (and there is little to no information on the Predator website regarding official specifications).
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