Will laptop bottleneck the GTX 1060 ?

[trungdang97]

I have a Lenovo U41-70.

CPU: i5-5500U 2.4GHz (2 cores, 4 threads).
RAM: 2x4GB DDR3.
GPU: GT 920M 2GB.

Since I don't have enough money yet to build a PC and it will take me another year of saving money, I really want to use an EGPU instead. But how bad the bottleneck will be and will it worth buying a Zotac GTX 1060 6GB Mini to pair with my laptop? If they can perform quite well then should I buy an external monitor?

 

[BFG-9000]

Um, without Thunderbolt or even ExpressCard, how were you going to hook up the eGPU, via USB?

I've seen miniPCIe to eGPU adapters but you'd have to remove the WLAN/BT combo card and it's only x1.

 

[trungdang97]

Um, without Thunderbolt or even ExpressCard, how were you going to hook up the eGPU, via USB?

I've seen miniPCIe to eGPU adapters but you'd have to remove the WLAN/BT combo card and it's only x1.

I can change to cable or use my friend's usb wifi adapter. And yes, I have to remove the card to free the mini port.

To be more exact, I want to play PlayerUnknown's Battleground smoothly at low or medium since I was gifted the game. I know a PC is better in the long run but will this be possible ?

 

[BFG-9000]

PCIe 2.0 x1 is equivalent to PCIe 1.1 x2. While I don't see any PCIe scaling test for the 1060 it is roughly equivalent to a 980:
None of those are Unreal Engine 4 games but you can see the trend. If it continues to PCIe 1.1 x2 you should see around 63% of the performance it would have at the PCIe 3.0 x16 it was designed for. That would still be twice as fast as the minimum recommended GTX 660.