On my cMP 5,1 running Catalina with OpenCore (Martin Lo's distribution) I'm currently using a flashed AMD Radeon R9 280x with a Dell U2412M monitor.
System Information shows the following details for them:
I'd like to move up to at least a 27" monitor, but before shopping I'd like to have some idea what the R9 280x can support as far as resolution and refresh rates.
As for pixels, though I'm rather nearsighted I find the pixel pitch I'm getting (I calculate about 94 ppi) is comfortable for me. I might be okay with a slightly higher value, I suppose.
Current monitor connections:
I was told by the person who flashed it that the firmware on the Radeon board doesn't support one of the connectors I don't use, either:
Things that aren't concerns of mine:
So what I hope some responders can offer are:
System Information shows the following details for them:
AMD Radeon R9 280x:
Chipset Model: AMD Radeon R9 280x
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 3 GB
Vendor: AMD (0x1002)
Device ID: 0x6798
Revision ID: 0x0000
ROM Revision: 113-E2080C-101
VBIOS Version: 113-5E249000-O42
EFI Driver Version: 01.00.624
Metal: Supported
Displays:
DELL U2412M:
Resolution: 1920 x 1200 (WUXGA - Widescreen Ultra eXtended Graphics Array)
UI Looks like: 1920 x 1200
Framebuffer Depth: 30-Bit Color (ARGB2101010)
Display Serial Number: YMYH139F0G0S
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Automatically Adjust Brightness: No
Connection Type: Thunderbolt/DisplayPort
I'd like to move up to at least a 27" monitor, but before shopping I'd like to have some idea what the R9 280x can support as far as resolution and refresh rates.
As for pixels, though I'm rather nearsighted I find the pixel pitch I'm getting (I calculate about 94 ppi) is comfortable for me. I might be okay with a slightly higher value, I suppose.
Current monitor connections:
- DisplayPort: Radeon DisplayPort
- DVI-D: Occasionally other computers but not the Mac Radeon card.
- VGA: Occasionally used but could use an adapter.
I was told by the person who flashed it that the firmware on the Radeon board doesn't support one of the connectors I don't use, either:
- One of the two DVI connectors, or,
- The HDMI connector,
Things that aren't concerns of mine:
- Gaming
- 4K
- USB ports on monitor
- Built-in speakers, though I'd be content to continue using my clunky, ancient Altec Lansing desktop speakers since they still sound okay.
- Adjustable height and horizontal+vertical screen angle (or else VESA compatibility).
So what I hope some responders can offer are:
- Resolutions and refresh rates supported by AMD Radeon R9 280x
- Suggestions as to specific monitors
- Tips, etc.