![]() ![]() Standard DDR3 operates at 1.5V, while low-voltage DDR3L drops that down to 1.35V - the two standards are otherwise identical. The other big change, and one that Apple is among the first (only?) to take advantage of is Haswell ULT’s support for LPDDR3. Haswell ULT supports lower power sleep states (up to C10) than the standard mobile or desktop parts (C6/C7). ![]() The combination of Haswell ULT CPU and PCH are both included in the new 15W TDP (there’s a 28W version as well but not used in the MacBook Air). Haswell ULT silicon itself is binned for lower voltage/power operation. The PCH also moves down to 32nm, helping further reduce power consumption. Bringing it on package reduces the amount of power needed to drive traffic between the CPU and PCH, which in turn helps reduce platform power. The PCH is responsible for all SATA, USB, PCIe 2.0 and other rest-of-system interfaces. Intel is being frustratingly cagey with giving up real details on exactly what’s going on with Haswell ULT, but here’s what I’ve been able to piece together.įor starters, Haswell ULT brings the PCH (Platform Controller Hub) on-package. It turns out that although Intel did a wonderful job of driving down CPU power consumption over the years, it did nothing to make the rest of the platform keep up. ![]() But even if they fall a bit short, we’ll likely still see much improved MacBook Air and Pro battery life.With Haswell ULT, Intel aggressively focused on driving down total platform power consumption. Time will tell if Apple’s ratings stand up to real-world use. These gains are no doubt thanks to the M1’s 8-core design featuring 4 high-efficiency and 4 high-performance cores and how Apple is able to now fine-tune macOS Big Sur with the brand-new hardware. With Apple Silicon, the company’s notebooks look set to get a massive upgrade in battery life thanks to much more efficient hardware (and software).Īpple revealed during its November event that the MacBook Air with the M1 chip is rated for 15 hours of wireless web use and 18 hours of video playback.Īnd even more impressive, the new 13-inch MacBook Pro with M1 Apple Silicon is rated for 17 hours of wireless web and wild 20 hours of video playback. However, that’s usually in best-case scenario conditions with 6-8 hours often being more realistic, especially as the notebooks age. Until now, Apple has given battery life ratings of about 10-12 hours for most of its MacBooks. Beyond processor and graphics performance, Apple says battery performance is seeing massive improvements giving them the “longest battery life ever in a Mac.” Here’s what Apple is rating battery runtime for the new MacBook Air and Pro. As Apple launched its new MacBook Air and MacBook Pro powered by its M1 custom Apple Silicon, we learned about the big performance gains to expect. ![]()
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