![]() There is some slight variation in random performance, but under prosumer workloads we don't expect to see much difference outside of rare steady-state conditions. Users get a blistering 3,500MB/s sequential read and 2,100MB/s sequential write speeds. The specifications given to us by Samsung show consistent read and write performance across all three models. It was important to hit the target size in order for the 960 Pro to be a drop-in replacement for products like the Lenovo P700 mobile workstation. Samsung managed to meet the current consumer-standard form factor. This is a technique Samsung perfected in the 750 EVO (and later in the PM971): a single BGA with controller, DRAM, and NAND in the same chip. In order to fit the four NAND packages and the other needed components in an M.2 2280 form factor, Samsung needed to merge both the controller and DRAM die together in a single package with a small footprint. ![]() The rated endurance encroaches on enterprise levels and is class-leading compared to all other NVMe-based solutions shipping today in the consumer/prosumer space. In this series, customers pay for increased write performance without the need for an SLC-layer buffer. The 960 Pro is ideal for heavy A/V application use and other high write environments. This series costs significantly more than the 960 EVO (with TLC) but is a no-compromise product that delivers very high and very consistent performance. Samsung's 3-bit per cell V-NAND technology has been so successful at delivering both performance and endurance that the new 960 Pro (with MLC V-NAND) almost exclusively targets the professional market. The new flash should be a drop-in replacement in 2017 and give Samsung an easy path to reducing prices while offering higher capacities. Samsung has already discussed 64-layer V-NAND at Flash Memory Summit with a projected time to market of 2017. This produced some hurdles on the 960 Pro that we will detail in the next section. Samsung is still using 48-layer V-NAND technology with 256Gbit die density on both new 960-series products. The new driver further optimizes performance for Samsung NVMe SSDs within Windows. Samsung's new NVMe 2.0 driver works in conjunction with the hardware to deliver better performance than what we saw on the SM961 (with MLC) and PM961 (with TLC). ![]() Samsung's second generation NVMe controller, Polaris, is a 5-core design that was built to maximize the performance the NVMe specification over PCIe 3.0 with four lanes of connectivity. We've tested Samsung's OEM products with the Polaris controller but never managed to locate any concrete details about the architecture. ![]()
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