2019 14" Lenovo Thinkpad X1 Carbon Gen 7 [10th,6C,U] + RX 580 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 1909
System Specs 14-in Lenovo Thinkpad X1 Carbon Gen 7, 14in, i7 10710u - integrated graphics and windows 10
Installation Steps This was mostly plug and play with the drivers. I had trouble restarting the computer after installing with the device attached (BSOD) but that was fixed by unplugging it during restart and now it's been fine. Part of this installation was testing a couple TB3 cables I bought and I did have to power cycle the device after switching the cables on random instances but it's not been too much of a hassle.
Benchmark Which brings me to benchmarks. I have three cables I am using: the 1.5ft passive cable that came with the device, a 6ft passive cable by Cable Matters, and a 6ft active cable by CalDigit. My intention is to be able to use this while retaining the laptop capabilities, so I expect I will use mostly the internal screen and would like the flexibility of a longer cable. However, I heard the thinkpad x1 thunderbolt ports don't play nicely with active cables so I bought a backup to test. I ran them through Unigine Heaven on both the internal display and an external monitor just to compare and the result were expected: the short cable runs the best, followed by the active cable, then the passive cable. An external monitor works better than the internal screen.
1.5ft cable on the internal display:
1.5ft cable on the external monitor:
6ft Active cable on the internal display:
6ft Active cable on the external monitor:
6ft Passive cable on the internal display:
6ft Passive cable on the external monitor:
Comments Regardless, they are all improvements on the gaming performance I was seeing so that's exciting. I still expect I will mostly use this on the internal screen but I haven't decided which cable I will keep between the 6ft ones. I may keep testing the active cable to see if any lingering problems like flickering or suddenly stopping exist with the Thinkpad drivers. The active cable was about 3 times the cost of the passive cable but it does lose performance, particularly on the internal screen so if I can make it work consistently, I will likely continue to use that.
I wanted to update the post with some pics now that I have I have this set up for working from home:
hey love your setup. i just bought the same model of the x1 carbon that you have.. i want to get and egpu but didn't know if it would work with this laptop, but have seen a few post like yours that have work. can you pls tell me how is performing. i don't want it for gaming is just for light video editing to work from home. would you still recommend it,?
Very intereseting. Have you tried passmark with internal monitor? When I run passmark I can't get direct x 11 and 12 to use the Egpu with my x1 gen 6. Any thoughts?