What card to go in a Razer core X Chroma  

Hi - 

I am about to get a Razer Core X Chroma and need some help to decide what Card to go for?

I will be using it on a 16 “ Mac Book Pro from July 2020 5600M 64GB Ram.

Main use is lightroom photo stitching and FCPX Apple Pro RES raw

When I connect the MBP and do anything intensive even moderate the fans spin up to max as temps of internals reach 95 + degrees. When I unplug my LG 27 “ Ultrafine display this never happens and MBP can handle whatever is thrown at it without breaking a sweat. So I have decided to go for an egpu to lift the load of the MBP and chill it out.

What Card would you choose for this set up?????

I am considering these

AMD 5700 Xt Anniversary edition - https://www.ebay.co.uk/itm/184307623827

AMD Radeon Pro w5700 8GB - https://www.ebay.co.uk/itm/324221113387

My main considerations are that the Power needs to be under 500 w for the Core X to power it

Good proven mac compatibility and under £500 used

My current screen is the LG (27MD5KA-B.AEK) Ultrafine 5k 27'' Monitor and has TB3 so I plan to use this if the card does not have USBc - YIWENTEC USB C to DisplayPort 1.4 8K Cable with USB-C PD [email protected] https://www.amazon.co.uk/dp/B0895F8VB8/ref=cm_sw_r_cp_tai_vPFhFb6BRY5XF

Thank you for any advice / suggestions in advance

All the best