02-06-2019 09:55 AM
I have a Legion Y720 laptop fra Q4 2017
it’s the one with an i7-7700HQ, 16gb ram and GTX 1060 6gb.
I want to use an eGPU to the TB3 port. But i need to know af few things.
Is the PciLanes 4 Lane or 2 Lane? And doe’s the lane connect directly to the CPU or the motherboard chipset?
it seems to make a lot of difference when using a eGPU.
02-06-2019 02:17 PM
It is 4 lane, and the chipset/cpu I dont know what are you asking, runing eGpu with external display si the best.
The problem with eGpu is that you lose around 30% performance, so a 1070 will have the results of a 1060 or better.
02-06-2019 02:30 PM
Maybe this helps? kinda want to know also.
02-06-2019 09:39 PM
I found out using HWiNFO64 software which is a kind of an expanded desktop manager, that the Legion Y720 laptop use PCH for TB3 controller and not CPU controlled TB3, sadly.
That the performance difference is precise i don’t know but i guess 5-10fps.