External vs internal gpu for LC0

h1a8 · Post by **h1a8** » Tue Dec 31, 2019 11:12 pm

I was thinking of getting a 2 in 1 laptop with an external gpu (2080ti) connected to thunderbolt or a desktop with the 2080ti. Would there be a significant difference in performance for Lela?

I was thinking if I got the 2 in 1 then I wouldn’t need a desktop.

Hai · Post by **Hai** » Tue Dec 31, 2019 11:38 pm

iPad Pro or MacBook Pro + 1-4 external RTX 2080 Ti

h1a8 · Post by **h1a8** » Wed Jan 01, 2020 4:02 am

Hai wrote: ↑Tue Dec 31, 2019 11:38 pm iPad Pro or MacBook Pro + 1-4 external RTX 2080 Ti

I don’t understand.

Would there be a significant difference in performance between a laptop with external gpu (2080ti) connected via thunderbolt
Vs
Internal gpu (2080ti) for desktop?

Nordlandia · Post by **Nordlandia** » Wed Jan 01, 2020 8:55 am

I can think of latency and PCIe x16 has twice as much bandwidth as PCIe x8 and four times as much bandwidth as Thunderbolt 3.

Modern Times · Post by **Modern Times** » Wed Jan 01, 2020 9:03 am

Yes but how important is bandwidth for LC0 ?

ankan · Post by **ankan** » Wed Jan 01, 2020 1:52 pm

h1a8 wrote: ↑Tue Dec 31, 2019 11:12 pm I was thinking of getting a 2 in 1 laptop with an external gpu (2080ti) connected to thunderbolt or a desktop with the 2080ti. Would there be a significant difference in performance for Lela?

I was thinking if I got the 2 in 1 then I wouldn’t need a desktop.

lc0 isn't much bottlenecked by PCIe bandwidth so I wouldn't expect significant different in performance. Maybe about 5%.

External vs internal gpu for LC0

External vs internal gpu for LC0

Re: External vs internal gpu for LC0

Re: External vs internal gpu for LC0

Re: External vs internal gpu for LC0

Re: External vs internal gpu for LC0

Re: External vs internal gpu for LC0