Links Limit Data rate Bandwidth Single 165 MHz 3.96 Gbps 4.95 Gbps Dual 330 MHz* 7.92 Gbps 9.9 Gbps
* Technically no limit defined by the DVI specification, but often limited to 330 MHz.
Version Limit Data rate Bandwidth 1.0-1.2a 165 MHz 3.96 Gbps 4.95 Gbps 1.3-1.4b 340 MHz* 8.16 Gbps 10.2 Gbps 2.0-2.0b 600 MHz 14.4 Gbps 18 Gbps
* AMD GPUs without HDMI 2.0 are limited to 297 MHz. Intel GPUs without HDMI 2.0 are limited to 300.99 MHz.
DisplayPort limits depend on the number of lanes and the link rate:
Reduced Bit Rate (RBR) and High Bit Rate (HBR) are supported by all versions of DisplayPort. High Bit Rate 2 (HBR2) is supported by DisplayPort 1.2 and newer. High Bit Rate 3 (HBR3) is supported by DisplayPort 1.3 and newer. 4 lanes
Link rate 8 bpc limit 6 bpc limit Data rate Bandwidth 162 MHz (RBR) 216 MHz 288 MHz 5.184 Gbps 6.48 Gbps 270 MHz (HBR) 360 MHz 480 MHz 8.64 Gbps 10.8 Gbps 540 MHz (HBR2) 720 MHz* 960 MHz* 17.28 Gbps 21.6 Gbps 810 MHz (HBR3) 1080 MHz 1440 MHz 25.92 Gbps 32.4 Gbps
* NVIDIA Kepler GPUs are limited to 540 MHz.
Link rate 8 bpc limit 6 bpc limit Data rate Bandwidth 162 MHz (RBR) 108 MHz 144 MHz 2.592 Gbps 3.24 Gbps 270 MHz (HBR) 180 MHz 240 MHz 4.32 Gbps 5.4 Gbps 540 MHz (HBR2) 360 MHz 480 MHz 8.64 Gbps 10.8 Gbps 810 MHz (HBR3) 540 MHz 720 MHz 12.96 Gbps 16.2 Gbps 1 lane
Link rate 8 bpc limit 6 bpc limit Data rate Bandwidth 162 MHz (RBR) 54 MHz 72 MHz 1.296 Gbps 1.62 Gbps 270 MHz (HBR) 90 MHz 120 MHz 2.16 Gbps 2.7 Gbps 540 MHz (HBR2) 180 MHz 240 MHz 4.32 Gbps 5.4 Gbps 810 MHz (HBR3) 270 MHz 360 MHz 6.48 Gbps 8.1 Gbps
Digital Display Working Group (DDWG), the group that created the Digital Visual Interface (DVI) standard, doesn't seem to exist anymore, so here's an archived copy of the DVI specification:
An interesting note is the DVI specification doesn't actually specify a maximum pixel clock, only that pixel clocks greater than 165 MHz must use two links. In fact, it states the first link can operate beyond 165 MHz if the pixel clock is greater than 330 MHz.
If you have a
BenQ XL2730Z or ZOWIE XL2730 and can't set the refresh rate to 144 Hz because the option disappeared, it may be a firmware bug.
Follow these instructions to reset the monitor:
Power off the monitor. Hold down buttons 3 and 4 and power on the monitor. Keep buttons 3 and 4 pressed until the picture appears. Press button 5 to enter the factory menu. Choose "CLEARUSER" to reset the monitor. Unplug the monitor's power for a minute. Plug the monitor back in and power on the monitor.
Custom Resolution Utility (CRU) 1.4.2 was recently released with a new feature that allows exporting self-contained EDID override installers. This also includes an alternative method compatible with older Intel GPUs.
After making the desired changes, click the "Export..." button:
Choose "EXE File" for the file type:
Click the "Save" button.
Run the .exe file:
Choose "Install EDID" to install the EDID override on all matching displays. Choose "Reset EDID" to remove the EDID override.
I think it's time I started a blog to create a knowledge base. I'll be posting software releases, guides, technical information, and whatever else comes to mind.