Can the latency depend on the performance of the device?

I have a latency of 25 on my gaming PC and 60 on a laptop.

Question is at the top: '

Yes, that can depend on the mainboard or the processor etc.

Probably more because you use the laptop Wi-Fi and PC Lan

I plugged in the LAN cable for both

Then it could be because you always caught different servers during the speed test, open cmd and enter ping 8.8.8.8 on both devices

Are already on both devices

Ok cool

In principle, yes, but the cheapest on-board network card today is easily fast enough to add only an imperceptibly low latency.

My first thought was that it is due to LAN (via cable) versus WLAN - after all, the signal for WLAN has to be transformed twice.

After you write in a comment that both devices are connected to a cable, it can't be. Maybe that the cable on the laptop has a loose contact or a kink, so that many data packets are lost and have to be sent again.

But it can also be due to the software - the laptop may have a higher "network stack" (series of programs between which the data is passed). You could try this by starting both devices with the same "live system", e.g. B. Knoppix.

But it could also be that the network card of the PC can measure the latency independently of the software behind it, while that of the laptop can have it done by its driver. Then the differences should remain approximately constant. You could possibly improve something (no guarantee, not even afterwards functioning) by installing the latest drivers for the network connection of the laptop.

Xd