In the real world, that could extend battery life by as much as four to eight hours, according to Josh Newman, the general manager of mobile innovation segments for Intel. For laptops whose batteries already last a dozen hours or more, it could push the laptop's stamina to levels that approach 20 hours or more depending on the existing battery, Newman explained. Intel showed off prototype PCs in an “open house” at Computex. These laptops, from HP and Dell, use the Low Power Display Technology co-developed with Sharp and Innolux.
Fortunately, Intel’s Low Power Display Technology doesn’t appear to change the fundamental nature of the panel themselves. Intel showed off prototype laptops from Dell and HP with the LPDT panel technology already installed. It sounds like those laptops will still be able to project all the light output users need—350 nits or so. What’s unknown (and probably unlikely) is whether you’ll be able to run at full brightness and still achieve the longest battery life.
Newman said the first systems with the display technology installed would appear on store shelves this holiday season. It’s unclear whether LPDT panels will affect the prices of the laptops themselves—that’s up to notebook makers, Newman told PCWorld.Intel’s been facing pressure from Qualcomm on the battery front, as its Snapdragon-powered Always Connected PCs emphasize connectivity and long battery life—specifically 20 hours or more, the same range Intel is targeting. With Intel beginning to push 5G-equipped PCs forward in conjunction with low-power technologies like LPDT, it’s going to be a close fight. That's good news for consumers, who will ultimately benefit.When we think about the components that influence laptop battery life, the CPU and display panel get top billing. However, the storage drive also uses a lot of power and having the right one can make a noticeable difference in your laptop's endurance. Our sister site, Tom's Hardware, just posted a detailed analysis of battery life from more than 100 different Solid State Drives and hard drives; the results may surprise you.
All of the storage drives were tested in a Lenovo IdeaPad Y700-17ISK with a Core i7-6700HQ CPU and 16GB of RAM. This slightly-older laptop has room for both a standard, SATA drive and a slim, PCIe-NVMe SSD, so it was able to accommodate all 108 drives they tested. It's not a particularly long-lasting laptop as its battery life ranged from 392 minutes (6:32 hours) on the most power efficient drive to 258 minutes (4:18 hours) on the worst. Tom's Hardware used the MobileMark 2014 battery test, which runs a variety of applications, but doesn't download any data from the Internet. Because SSDs have no moving parts, you might expect that they would always use less power than mechanical hard drives. While most hard drives gulp more juice than their solid-state counterparts, there are some exceptions. Seven different hard drives allowed the laptop to last over 5 hours on a charge, while 13 of the 41 NVMe SSDs and 4 of the 58 SATA SSDs they tested fell below that mark. The most power efficient hard drive, the Seagate Momentus Thin (500GB) provided 331 minutes of battery life, which is more endurance than 7 of the NVMe SSDs and 10 of the SATA SSDs.
Overall, the average hard drive provided 5 hours and 16 minutes of battery life and the average NVMe PCIe SSD was actually a minute behind that. The mean time for a SATA SSD was a much-stronger 5 hours and 48 minutes. While more laptops still use SSDs that connect via the SATA (Serial ATA) interface, an increasing number now use the PCIe-NVMe interface, which offers speeds that can be two to five times faster. However, with this added performance there's usually less power efficiency. According to Tom's Hardware's tests, the average PCIe-NVMe SSD lasted 33 minutes less on a charge. However, the longest-lasting NVMe-PCIe drive, the Samsung SM951 (256GB) endured for 6 hours and 24 minutes, which is only 10 minutes less than the best SATA drive, the SanDisk Z410 (6:34).
The longest-lasting SSD Tom's Hardware tested overall, which is a SATA model, is the SanDisk Z410 480GB (6:34) while the best PCIe-NVMe SSD is the Samsung SM951 256GB (6:24). However, when you're purchasing a brand new laptop, you don't have any choice about the make and model of SSD. Most manufacturers only disclose the SSD capacity and whether it's PCIe-NVMe or SATA.If you already own a laptop and want to upgrade it, that's when you can choose the model that suits your needs best. To find out whether you can upgrade your laptop at all and whether it's SATA or PCIe-NVMe, check out our article on how to upgrade your laptop. For more detail and a complete list of all 108 drives, check out Tom's Hardware's article.
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