Yes that's the card I have. I have the hdmi connection going to my 32 inch TV. One display port going to my 22 inch monitor. And I have two active mini display ports to vga going to two 19 inch monitors.
How are you using a DisplayPort to the 22 inch, using a
DVI-D Male to DisplayPort adapter?
That means on the Sapphire R9 380 I linked, you'd also be using just 2 legacy connections (HDMI to 32" TV + DisplayPort to DVI cable), not 3 (which means your limitations doesn't seem to apply).
Can you show me the links where a gtx960 has problems with 4 monitors?
It would take me all day to search 5 years of user forums. It's been well known for years that if you want a more seamless experience with 3-4 different monitors, when using 2D+3D, tabbing out of programs/apps/games, you go Eyefinity.
https://www.youtube.com/watch?v=YnWnmugUwAY
Your card is not special at all since it still relies on NV's multi-monitor drivers which is what causes issues. NV hardware is not the issue, it's multi-monitor software when mixing and matching 3-4 different monitors and resolutions. Not to mention, you cannot even run any games on 3-4
different monitors with NV. You need all monitors be the same make and model for NV
3D surround. AMD doesn't have this requirement. The OP has 3 different monitor SKUs.
Your best bet to end up with a card that supports 4 monitors is to find one with as many display ports as possible (2 minimum) and get active adapters for your non-display port monitors.
Why would he need active adapters? He is using 2 mini DP, leaving HDMI + DVI for his 'legacy' monitors. This is the exact same thing as his HD7770. The new feature is running
3 legacy connections on R9 300. Since he is only using 2 legacy connections, not 3, why would it not work?