I'm considering an eGPU to attach to a 2560x1440 monitor through my Macbook Air and I have a few questions. Firstly, I'm thinking of buying a second hand PE4H version 1.0 and would like to know what the differences are compared to the later versions? The HW-Tools website doesn't compare it with the other versions and I haven't been following eGPUs for a while. Secondly, how would the 1440P resolution impact on performance? I haven't found any benchmarks at a greater than 1080P resolution on this thread so hopefully it scales proportionately to resolution analogous to a desktop and doesn't crash and burn. Thanks in advance.