Hi. I have an iMac 27in 5K (2017) computer and I am interested in getting the Samsung CRG90 as my second monitor. Is it possible to get the full resolution of that monitor (5120 X 1440) from the iMac? The display doesn't have a Thunderbolt connection, but it has HDMI 2.0 and DP 1.4
iMac Line (2012 and Later)
According to my information:
DISPLAY
Built-in Display 27-inch (diagonal) Retina 5K display with IPS technology
Brightness 500 cd/m2
Pixel Density 218 ppi
Color Gamut Wide color gamut (P3)
Resolutions 5120 by 2880 pixels
GRAPHICS
Graphics Card AMD Radeon Pro 570, Radeon Pro 575, or Radeon Pro 580
Graphics Memory 4 GB (Radeon Pro 570, Radeon Pro 575) or 8 GB (Radeon Pro 580) GDDR5
Display Connection Thunderbolt digital video output
Display Modes Dual display extended, video mirroring, and AirPlay Mirroring
External Resolution Up to 4096 by 2304 (two displays) 5120 by 2880 (one display) pixels at 60 Hz
According to my information:
DISPLAY
Built-in Display 27-inch (diagonal) Retina 5K display with IPS technology
Brightness 500 cd/m2
Pixel Density 218 ppi
Color Gamut Wide color gamut (P3)
Resolutions 5120 by 2880 pixels
GRAPHICS
Graphics Card AMD Radeon Pro 570, Radeon Pro 575, or Radeon Pro 580
Graphics Memory 4 GB (Radeon Pro 570, Radeon Pro 575) or 8 GB (Radeon Pro 580) GDDR5
Display Connection Thunderbolt digital video output
Display Modes Dual display extended, video mirroring, and AirPlay Mirroring
External Resolution Up to 4096 by 2304 (two displays) 5120 by 2880 (one display) pixels at 60 Hz
I don't know what resolutions work on an HDMI connection. Your external monitor needs to support what the iMac supports or it will not work at the unsupported resolutions. You can overcome this by using a third-party software, SwitchRes.
This cable will support 5120 X 1440 from Thunderbolt-3/USB-C to DisplayPort.
https://www.moshi.com/en/product/usb-c-to-displayport-cable-5k/white
Thanks for your reply, Kappy. I am just wondering if I can get to that resolution using a Thunderbolt to HDMI or DisplayPort cable given that the monitor doesn't support a Thunderbolt connection.
iMac external monitor support - Samsung CRG90
