Headless display adapter vs an actual external monitor - are there any downsides?
I am a "digital nomad" looking for ways to play some Dota on my old reliable HP Elitebook (with a dedicated Expresscard/54 slot) without dropping a bank on a gaming laptop. eGPU entice me, but I am put off by the fact that most circulating builds on reddit and epgu.io include an external monitor and direct use of an internal monitor severely impacts eGPU performance especially for Expressport/54, which is a no-goer for me.
Recently I found this video:
which uses a headless display with an eGPU to avoid setting up an actual external monitor. This guide suggests this approach as well. I can't seem to find any downsides for this, save perhaps for some potential latency issues. Am I right in my thinking? Why is this approach not as widespread and popular if there are no major downsides to this?
This is a setup that I intent to use:
HP Elitebook 8470p (Intel Core i5-3380M, 8 GB RAM DDR3 dual-channel, 240GB SSD, 1600x900 screen)
EXP GDC dock + Expresscard/54 + some 1600x900 headless display
GTX 1060 3gb (from my main rig)
Thank you all for advice in advance.
@confidentvegetable81, for your setup, I don't think it will make a difference on the latest versions of Windows 10. Before anything else, your CPU and Expresscard Interface will prove to be a bottleneck.
@sajid_ahmed, If that is indeed the case then that sounds like fantastic news for me. But this makes me wonder - if getting a compact eGPU station with an internal display is as easy as adding a headless ghost display and mirroring image from the ghost screen to the internal one, why can't I find a single guide in the list that uses this little trick? Given how knowledgeable people are on this forum this strikes me as something quite odd.