Below is a guide to help select an eGPU based on your budget. There are two tables, one for sort by the net price and the other by portability of the device including the power supply. When I was looking up what people should buy, I found it challenging to compare across all the options including using the fantastic site egpu.io. I decided to create a table to help people decide what they should get based on price and/or portability. This list only includes Thunderbolt 3 eGPUs only and does not include all Thunderbolt devices.

Recommendations

• Mac OS officially only supports AMD video cards and has less issues.
• Internal monitors have lower performance than external monitors as the video signal passes over the thunderbolt chip back to the laptop monitor.
• eGPU's do not like high framerates as that uses more bandwidth and has more overhead for the thunderbolt chip and drivers.
• Higher end graphics cards may not outperform lower end ones if the CPU is limiting it or the resolution is too low.

Net Price

​The table below shows all eGPUs sorted by Net Price; The price of the eGPU minus the price of the video card if purchased separately if one is included.​