Samsung’s SM951 SSD To Be Used With PCIe
Gone are the days of traditional hard drives, which were slow, wasted extra energy and turned hot after a while. Premium ultrabooks, laptops and desktop PCs are now using solid state drives (SSDs) commonly, as their qualities are the exact opposite of a hard drive: they are fast, energy efficient and cooler in comparison. SSDs are commonly connected using SATA, but, for the best results, PCIe is the better option.
So, we are not surprised that Samsung has chosen to use PCIe with its latest SSD for ultra-thin laptops and workstations. Being dubbed as the SM951, it claims lighting-fast performance, with speeds over 1000 MB/s, and magnificent energy-efficiency, consuming less than 2mW in standby. The SSD will be offered in 128 GB, 256 GB and 512 GB storage options.
“We are helping to accelerate growth of the ultra-slim notebook PC market with the introduction of this energy-efficient, high-speed PCIe SSD,” says Samsung Electronics senior vice president of Memory Marketing Jeeho Baek.
When SM951 was matched with devices supporting PCIe 3.0, sequential read speeds were achieved up to 2,150 MB/s and write speeds of 1,550 MB/s. These results are four times better than a SATA-based SSD according to the company’s claims.
Samsung has rated the energy efficiency at 450 MB/s per Watt for sequential reading, and 250 MB/s per watt for sequential writing. Compared to its predecessor, XP941, the SM951 performs 50 percent better to conserve energy.
For devices supporting PCIe 2.0, SM951 is able to deliver sequential read speeds of 1,600 MB/s and write speeds of 1,350 MB/s. Even the random read and write speed checks yielded 130,000 IOPS and 85,000 IOPS (inputs/outputs per second) respectively. Under these conditions, Samsung states that SM951 is 30 percent faster than XP941, and three times faster than SATA-based SSDs.
Energy Saving Features
SM951 supports the L1.2 low power standby mode, which makes it “the first device of its kind to offer this feature,” according to Samsung. L1.2 power standby mode reduces energy by a whopping 97 percent compared to L1 (down from 50mW). This energy conservation is likely to allow this feature to be integrated in ultrabooks, where long battery life is essential to their standing in the market.
SM951 is a very suitable choice for such ultra-slim devices because of its minuscule size. Its form-factor is M.2 (measuring just 80 by 22 mm), which is seven times smaller than that used in 2.5-inch SSDs (and laptop hard drives). Another advantage of using it is the weight, which is just six grams, making it the best match for a sleek ultrabook.
The SSD by Samsung is now being produced on a massive scale for selling. Samsung has not said when it will be available in devices, or how much it will cost.