Notebookcheck review of Vivobook S 15 is up (in german).
This is not a very good chip, as it stands now, in this laptop.
Browsing is good, responsive and OK battery life, but this is not nearly enough..
This bit is unfortunate: a 20W power limit will not survive passively.
Please note: The TDP information comes from the manufacturer and also includes the power consumption of the memory and the microcontroller. Therefore, these values are not comparable with the TDP information of AMD/Intel chips. There is also currently no way to read the TDP values for the Snapdragon CPUs. The information in the table comes from Asus, but we suspect that these are only the long-term values and that the short-term consumption is higher.
Due to the high TDP values, the Snapdragon X Elite chips cannot be cooled passively, which is of course a major disadvantage compared to the Apple MacBook Air 15, for example. The Vivobook is by no means almost always silent, but is more in line with normal AMD or Intel laptops.
ASUS claims the CPU + RAM power limit is roughly 20W at its lowest setting. Unfortunately, Qualcomm has obfuscated the already-bewildering world of TDP:
the spec sheet still shows no TDP range.
Disappointing for us fanless fans on round 1. Perhaps by X Plus or "V2", there will have been more effort on some lower-power parts with strict TDP limits. Even the current X Elite
tablets have active cooling.
Frankly, I'm not crazy impressed with the efficiency of this batch of X Elite designs yet re: thermals & battery life versus what Qualcomm had claimed.
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However, idle temps look good, though not chart-topping as I would've hoped. Notebookcheck doesn't really have a "light load" thermal test: just idle, gaming, and stress, but that would've been interesting.
The CB R23 (emulated) 1T power consumption + internal OELD off + external monitor activated is ~14.4W average (some duration at 20W+).
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Also no details on the
additional PCIe lanes that Notebookcheck claimed months ago.
Additionally, devices powered by the X Elite will offer 8 PCIe Gen4 lanes apart from those used for the SSD and Wi-Fi, support for MAPI cameras, and potentially multi-day battery life.
None of the devices I've seen even have a 2nd M.2 slot.
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Battery efficiency, with a 60 Hz OLED, is roughly 11min per WHr, which is nothing spectacular. The OLED seems to be decently efficient (peak idle power, I
assume at 100% brightness, is ~7.5W).
Notebookcheck does not explicitly confirm if they used ASUS custom "power efficiency" power plan when unplugged.