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Samsung Galaxy Book4 was announced tomorrow an hour ago (must have gone out at midnight Korea time, I'm ET), and it will be using the Core Ultra series. [1] At

by causal 3y ago

Samsung Galaxy Book4 was announced tomorrow an hour ago (must have gone out at midnight Korea time, I'm ET), and it will be using the Core Ultra series. [1] At 28W of power consumption, will be interesting to see if these can start to close the gap on battery life between PC and Apple. [1] https://news.samsung.com/global/introducing-galaxy-book4-series-the-most-intelligent-and-powerful-galaxy-book-yet https://news.samsung.com/global/introducing-galaxy-book4-ser...

wtallis 3y ago
There's nothing new or special about that 28W number: that's been one of Intel's standard product segments for years.
- ajross 3y ago
  Yeah, the 28W number is a load consumption. The driver of "battery life" is idle management, which as much or more to do with OS software as hardware design. (Also, it needs to be said, with simple battery capacity. Apple ships a monster 72 wH unit in the current MBP, which is fully half again as much as typical Intel/AMD/Chromebook devices.)
  - wtallis 3y ago
    > Yeah, the 28W number is a load consumption. More specifically, it's the sustained power limit used as a target parameter for the processor's power management control loop. It's not a measurement of any specific workload, and doesn't take into account any part of the system outside the Intel chip; DRAM, display, storage, etc. are not included. And laptop OEMs have some leeway to tweak those power limits, and wide variation in their cooling systems so the achievable power draw within safe temperature limits can be quite different.
deleted 3y ago
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GeekyBear 3y ago
> At 28W of power consumption For the lessor SKUs, but only at the base clock speed. > All run at a base TDP of 28 W, with a maximum turbo TDP of up to 115 W. https://www.anandtech.com/show/21185/intel-releases-core-ultra-h-and-u-series-processors-meteor-lake-brings-ai-and-arc-to-ultra-thin-notebooks https://www.anandtech.com/show/21185/intel-releases-core-ult... The base TDP for the Core Ultra 9 is listed as 45 watts.
- wtallis 3y ago
  I don't think "base clock speed" has been a well-defined quantity or officially published specification for a few generations now. It's really just the default/recommended PL1 (long term turbo power limit) value, and what clock speed that corresponds to will depend on the workload.
  - GeekyBear 3y ago
    I think we can be absolutely certain that the benchmark results Intel highlights are not what you can expect to see while the chip is limited to running at a 28 watt TDP.
DeathArrow 3y ago
>these can start to close the gap on battery life between PC and Apple I was hoping the same. But after seeing the benchmarks from notebookcheck.com it's clear they can't. For the same perf you are going to consume more. And part of the problem I think it is the compute part of the CPU being done on Intel 7nm vs TSMC 3nm.

by causal 3y ago

wtallis 3y ago

There's nothing new or special about that 28W number: that's been one of Intel's standard product segments for years.

ajross 3y ago
Yeah, the 28W number is a load consumption. The driver of "battery life" is idle management, which as much or more to do with OS software as hardware design. (Also, it needs to be said, with simple battery capacity. Apple ships a monster 72 wH unit in the current MBP, which is fully half again as much as typical Intel/AMD/Chromebook devices.)
- wtallis 3y ago
  > Yeah, the 28W number is a load consumption. More specifically, it's the sustained power limit used as a target parameter for the processor's power management control loop. It's not a measurement of any specific workload, and doesn't take into account any part of the system outside the Intel chip; DRAM, display, storage, etc. are not included. And laptop OEMs have some leeway to tweak those power limits, and wide variation in their cooling systems so the achievable power draw within safe temperature limits can be quite different.

deleted 3y ago

[deleted]

GeekyBear 3y ago

> At 28W of power consumption For the lessor SKUs, but only at the base clock speed. > All run at a base TDP of 28 W, with a maximum turbo TDP of up to 115 W. https://www.anandtech.com/show/21185/intel-releases-core-ultra-h-and-u-series-processors-meteor-lake-brings-ai-and-arc-to-ultra-thin-notebooks https://www.anandtech.com/show/21185/intel-releases-core-ult... The base TDP for the Core Ultra 9 is listed as 45 watts.

wtallis 3y ago
I don't think "base clock speed" has been a well-defined quantity or officially published specification for a few generations now. It's really just the default/recommended PL1 (long term turbo power limit) value, and what clock speed that corresponds to will depend on the workload.
- GeekyBear 3y ago
  I think we can be absolutely certain that the benchmark results Intel highlights are not what you can expect to see while the chip is limited to running at a 28 watt TDP.

DeathArrow 3y ago

>these can start to close the gap on battery life between PC and Apple I was hoping the same. But after seeing the benchmarks from notebookcheck.com it's clear they can't. For the same perf you are going to consume more. And part of the problem I think it is the compute part of the CPU being done on Intel 7nm vs TSMC 3nm.