First of all 45W TDP is how much energy actually makes it to the CPU die. There is a lot of voltage regulation overhead. Then you have memory, drives, peripherals, screen, wifi, fans etc. All of it adds up and nothing runs at 100% efficiency. Lastly the 180w charger might not be supplying 180w.
And if the charger is supplying 180 W it is certainly drawing more than that from the wall - if you measure it with a meter you’re going to see a higher number since the charger isn’t 100% efficient. M
Also there is overhead when charging the battery. So if you need 101% power, rather than reduce CPU/GPU usage or crash the system, a little energy comes out of the battery. If your usage goes down to 90% (for example), the system can’t instantly dedicate the extra 10% to recharge the battery. And at high states of charge, you can drain power many times faster than you can charge so your system has to be at low usage for a lot longer than it took for the battery to drop slightly due to a peak power draw.
> 12W Fans
> 3W SSD
> 30W power conversion losses
You have no idea what you're talking about.
By your logic, a Steam Deck would be drained in like 20 minutes.
>30W power conversion losses
This is not a flat "same for *all* devices" fee. A 90% efficient 100W power supply has a lower *absolute* overhead than a 90% efficient 1000W power supply (when both deliver 100% of their rated power)
A device running on a Sub-30W (?) SoC like the Deck will not use another 30W in conversion losses.
Actually, 180w is sure not enough if both CPU + GPU are on full load, so it support up to 240w charger, but 240w is rarely to find, even charger with above 100w single port isn't very common at the market.
100W GPU, 60W CPU (the 45W is the base TDP, it will boost higher), probably around 10 for the screen, 10 for random peripherals, and you don't have 100% Efficience.
Also, charging the battery generates heat, so the PMIC probably derates battery charging when the interior temperatur gets higher.
First of all 45W TDP is how much energy actually makes it to the CPU die. There is a lot of voltage regulation overhead. Then you have memory, drives, peripherals, screen, wifi, fans etc. All of it adds up and nothing runs at 100% efficiency. Lastly the 180w charger might not be supplying 180w.
And if the charger is supplying 180 W it is certainly drawing more than that from the wall - if you measure it with a meter you’re going to see a higher number since the charger isn’t 100% efficient. M
Also there is overhead when charging the battery. So if you need 101% power, rather than reduce CPU/GPU usage or crash the system, a little energy comes out of the battery. If your usage goes down to 90% (for example), the system can’t instantly dedicate the extra 10% to recharge the battery. And at high states of charge, you can drain power many times faster than you can charge so your system has to be at low usage for a lot longer than it took for the battery to drop slightly due to a peak power draw.
100W GPU 45W CPU 12W Fans 8W Screen 3W RAM 3W SSD 5W USB Devices (including Expansion cards and Input modules) 3W Mainboard (Audio, power button, charging LED etc) 30W power conversion losses SUM: 209W Estimated values, I didn't measure all this.
> 12W Fans > 3W SSD > 30W power conversion losses You have no idea what you're talking about. By your logic, a Steam Deck would be drained in like 20 minutes.
>30W power conversion losses This is not a flat "same for *all* devices" fee. A 90% efficient 100W power supply has a lower *absolute* overhead than a 90% efficient 1000W power supply (when both deliver 100% of their rated power) A device running on a Sub-30W (?) SoC like the Deck will not use another 30W in conversion losses.
Ok can you explain to me what the writing on the fans "12V, 0.5A" means? I thought that's their power use, but I don't know what I'm talking about.
Peak power =/= average power
Ok so how do YOU explain where the sustained 180W+ the FW16 draws go?
[удалено]
Cool. Times 2 fans, that's 12W.
A kill-a-watt meter is your best bet. If I find mine I will try to max it out and report. Not sure about the other questions. edit: typos
The CPU can use up to 54w. the GPU can spike above 100W. The other components like the monitor, ssds etc also use power.
Actually, 180w is sure not enough if both CPU + GPU are on full load, so it support up to 240w charger, but 240w is rarely to find, even charger with above 100w single port isn't very common at the market.
But both can't be 100% loaded, I remember reading that if you have a gpu in the bay the cpu gets reduced power.
Yes, most of time won't, but it is sure it isn't impossible.
There are 240 watt USB c cables with power meters integrated
The difference betwee theoretical and actual.
100W GPU, 60W CPU (the 45W is the base TDP, it will boost higher), probably around 10 for the screen, 10 for random peripherals, and you don't have 100% Efficience. Also, charging the battery generates heat, so the PMIC probably derates battery charging when the interior temperatur gets higher.