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40W is way high. https://www.notebookcheck.net/Dell-XPS-15-7590-OLED-Power-Consumption-Measurements-White-Can-Be-Almost-Two-Times-More-Demanding-Than-Other-Colo
by adgjlsfhk1 5y ago
40W is way high. https://www.notebookcheck.net/Dell-XPS-15-7590-OLED-Power-Consumption-Measurements-White-Can-Be-Almost-Two-Times-More-Demanding-Than-Other-Colors.430835.0.html https://www.notebookcheck.net/Dell-XPS-15-7590-OLED-Power-Co... shows 20w for max brightness on a laptop OLED monitor (or 6W at minimum brightness). For 13 inch laptops, it's around 25% lower (less area). Also, laptop CPUs can pretty easily use 30W (i7-1185G7 is an ultrabook class CPU and can be configured up to 28W).
Edit: was your 40W for total power consumption? If so, then going from 20W cpu to 10W cpu is still a 25% energy consumption reduction (as well as a cooler lap and better battery life).
- smoldesu 5y agoMacs have long reserved ~50w of power for the display, whether or not all of it is used is a different question. Giving them the benefit of the doubt (and accounting for screens that can max out at 1500 nits), I think an upper bound of 40w is pretty close to the actual figure. OLED will always pull less power since it doesn't need a backlight, in contrast to the hundreds of backlights on newer Macs.
- adgjlsfhk1 5y agoThe macbook pro has a 70 watt hour battery, and has a 10 hour battery life (video playback). Also, if I'm reading correctly, the 1000 nits brightness is only achievable when plugged in, and apple automatically reduces brightness on battery to keep the power consumption lower.