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It's hard for me to square your statements with actual real world products. The Core i7 1180G7 was the CPU in the ThinkPad X1 Nano Gen 2 (IIRC), and that laptop
by nemothekid 3y ago
It's hard for me to square your statements with actual real world products. The Core i7 1180G7 was the CPU in the ThinkPad X1 Nano Gen 2 (IIRC), and that laptop got half the battery life of an M2 Pro and a third of the battery life of the M1 air.
TDP doesn't seem to be the whole story - the datasheet is one thing, but I've yet to see a reviewer get 30 hours from an Intel laptop.
- timschmidt 3y agoFor sure there's interesting stuff to talk about here. Intel allows OEMs a lot of configuration with regard to TDP and various ways to measure chip temp accounting for thermal mass of the cooling solution and skin temperature of the device. Many OEMs screw it up. Even the big ones. Lenovo and Apple included. Screen backlight usually has as much to say about battery life as the CPU does. And it's hard to deny Apple's advantage of being fully vertically integrated. Their OS only needs to support a finite number of hardware configurations, and they are free to implement fixes at any layer. Most of my PC laptops make choices which use more power in exchange for modularity and upgradeability as well, like using SODIMMs for ram, and m.2 or SATA removeable storage, all of which consume more power than Apple's soldered on components.
- mike_hearn 3y agoLots of confounders there. MacOS is probably a lot more power optimized than Windows, given the shared iOS codebase, and OS quality can impact battery life hugely (useless wakeups, etc).