Which is the last/best LVDS nonUEFI MXM-A GPU?

[triturbo]

After searching quite a bit I couldn’t find definitive answer to this question. From my personal testing DELL K2100m runs fine on couple of old machines - Acer 7738G (HD+ LVDS) and HP 8570w (FHD LVDS). HP M2200 and (I’m guessing) DELL M1200 are no-go on either machine. The remaining options (which I am yet to buy) are M2000M and GTX 965m. I wasn’t able to find much about the M2000M. As for the GTX 965m someone upgraded a 8570w and mentions UEFI Native as a requirement, no mention about the display. I also asked the seller of the GTX 965m and he said UEFI and eDP are obligatory. I find it odd since the GTX 980m runs fine on older machines without UEFI and with LVDS screens, but yeah it’s different GPU with different vBIOS. I need it for a project and I want the most performance out of a 50W GPU. Thanks!

 

EDIT: Haven’t explored much the AMDs as there’s even less info about them. Suggestions are welcome however.