external gpu for laptop

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SpawnK

Commendable
Nov 6, 2016
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so before u start with get a desktop please dont

my laptop specs are
i53337U 1.8ghz and 2.7ghz turbo boost
amd radeon 7670M and intel hd4000

i want to connect a external video card to my laptop so just need to know how it works
im working at mcdonalds saving up money for my dream machine and so far only have managed to buy a 144hz monitor and a gtx 1080 8gb
i was told there was a way to attach it with my laptop till i buy other partss
 
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n0ns3ns3
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n0ns3ns3

n0ns3ns3

Illustrious
May 25, 2016
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yes, you can do it in couple of ways.
if you have thunderbolt2 on your laptop - you will need about 250-300$ for the external enclosure.
or you can use the miniPCIe port - much cheaper, still requires a PSU (the one that will fit your dream machine will work)
read this for more info http://www.pcworld.com/article/2984716/laptop-computers/how-to-transform-your-laptop-into-a-gaming-powerhouse-with-an-external-graphics-card.html
this is the cheapest solution https://www.aliexpress.com/item/EXP-GDC-Laptop-External-Independent-Video-Card-Dock-with-PCI-E-Interface-Black/32456172794.html?spm=2114.01010208.3.1.jezdui&ws_ab_test=searchweb0_0,searchweb201602_5_10065_10056_10068_10055_10054_10059_10078_10079_10084_10083_10073_10080_10070_10096_10082_10081_10060_423_10061_10052_10062_10050_424_10051,searchweb201603_1&btsid=0cf5f218-0e5b-46ea-a502-af5cb562dcef
still will cost 50$ not including power supply.
 
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bignastyid

bignastyid

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Jun 19, 2011
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Anyway you attach it(mini pci-e or expresscard) to the systems it will be severely bottlenecked by the slow interface(mini pci-e and express card slots only run at 1x speeds) to the point where it will be almost useless for gaming. Judging by the specs its to old for the newer thunderbolt versions that might have a chance of decent perfomance.
 
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n0ns3ns3

n0ns3ns3

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May 25, 2016
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It actually performs quite well.
modern cards do not utilize even half of PCIe x16 bandwidth. The x1 will not be significant as the GPU will be still limited by CPU of the notebook. It's dual core and low frequency. But OP wishes to utilize the GTX 1080 that he already have in some way. If he see value in spending 50$ on this later useless adapter, why not.
IMHO, he would be better starting dream machine by getting (in that order) peripherals (KB/mouse), Case, PSU, storage, CPU + MB + RAM, GPU. Of course when there is a good deal on the component in a list
 
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bignastyid

bignastyid

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Have you ever tried running a high end gpu at 1x speeds? The performance loss is massive. Theres a hell of a speed difference between 1x and 8x. I would honesty be surprised if it performed better that the 7670m in the laptop.

I felt the op should be warned before throwing anymore money at it or atleast go into it with the appropriate expectations. Most who want to run egpus for gaming on laptops not designed for one never even think of the bandwidth limitations and get a big let down when it performs poorly.
 
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