![]() ![]() The second run is with the OS volume written into a "Steady State" utilizing SNIA's guidelines. PM951 DISKMARK FULLThe first run is with the OS drive 75% full to simulate a lightly used OS volume filled with data to an amount we feel is common for most users. ![]() An example of a marked difference in scoring on the same drive would be empty vs. This allows us to see a marked difference between scoring that other trace-based benchmarks do not exhibit. What we see is the raw performance of the drive. The reason we like PCMark Vantage is because the recorded traces are played back without system stops. We categorize these tests as indicative of a moderate workload environment. Specifications Samsung SM951 NVMe 256GBīenchmarks (Trace Based OS Volume) - PCMark Vantage, PCMark 7 & PCMark 8 Moderate Workload Model Let's get going and see for ourselves what level of performance can be expected from a Samsung SM951 NVMe 256GB SSD. This method of testing takes more time and effort, but we believe it is well worth it. Testing boot volumes also allows us to comment with authority on how the drive/array handles when used as you will be using it. PM951 DISKMARK PROAs points of comparison, we will also be charting a powerful 3-drive Seagate 600 Pro SATA array, Intel's 750 Series 1.2 TB NVMe SSD and Intel's DC P3700 800GB enterprise NVMe SSD.Īs most of you know, we believe that providing results with the drives running as our boot volume 75% full is far more relevant than providing you with results from empty SSD's in an FOB state. Today we have one that does deliver full performance and we will be charting its performance alongside the new SM951 NVMe drive. When we last looked at the SM951 AHCI SSD, we had a Lenovo version that did not deliver full performance. We will examine both how the SM951 NVMe stacks up against Intel's monster 750 Series, as well as how much better it performs in comparison to the SM951 AHCI version. The NVMe protocol has a greatly reduced command stack that delivers lower latency, higher IOPS and reduced CPU overhead, so we expect to see great performance from Samsung's SM951 NVMe SSD. Samsung is looking for the performance crown and in an effort to capture it, they have introduced an NVME version of their highly successful SM951 M.2 SSD. Despite its small size, the SM951 AHCI SSD is 4x faster than SATA-based SSD's and in a desktop setting delivers performance nearly on par with Intel's 750 Series NVMe SSD's. We are starting to see many enthusiasts using the AHCI SM951 in their desktop's Ultra M.2 slots as a boot drive. Currently Samsung's SM951 NVMe M.2 SSD is only available to OEM's, however RamCity has stated to us they will be selling the drive to consumers beginning in mid-July of this year. PM951 DISKMARK PCTo extend battery life, the SM951 is capable of L1.2 low-power standby mode, which allows all high-speed circuits to be turned off when a PC is in sleep mode or hibernating, requiring only 2mW to maintain operational status. The SM951 is designed primarily for implementation in today's ultra-slim notebook PC's that require extended battery use. In contrast to Intel's 750 series, Samsung's 256GB SM951 PCIe Gen3 8Gb/s x 4 Lane NVMe M.2 SSD has only 2-16nm Planar flash packages, 1-DRAM package and a proprietary UBX 3-core 8-channel controller. ![]() Samsung has taken an opposite approach by embracing the M.2 form factor despite its diminutive size. Intel's 750 series SSD's are loaded up with a total of 36-20nm planar flash packages, 5-DRAM packages and a massive 18 channel controller. PM951 DISKMARK FULL SIZEIntel went full size as opposed to an M.2 form factor to avoid incurring limitations that are inherent to a device that is so small. Intel's 750 PCIe Gen3 8Gb/s x 4 Lane series SSD's are available in two form factors, a full size HHHL AIC (Half Height Half Length Add-In-Card) PCIe slot SSD or a 2.5"x 15mm SSD with an 8639-compatible connector. Intel's approach is a full size and full power (up to 25 watts) desktop solution. ![]()
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