How do I achieve 1440p/144fps on Intel 4600? The documentation claims it can only go up to 60fps, but I'm running 1440/120hz at the moment through displayport 1.2. I seriously doubt the extra 24 fps are impossible when apparently anything above 60 was imp

[JThom30]

I'm running a laptop with Optimus, which apparently itself can't go over 60fps... which clearly isn't true. In order for 980M GPU to be capable of running at 144hz, the monitor needs to run at 144hz, and for that to happen, intel graphics must run at 144hz.

It runs at 144hz at 1080p, just not 1440p.

[Allan_J_Intel1 · Accepted solution]

The Intel® HD Graphics 4600 supports the following refresh rates:

DisplayPort* 1.2 / eDP*

H-Processors: 3840 x 2160 @ 60 Hz (Ultra-HD)

U-Processors: 3200 x 2000 @ 60 Hz, 3840 x 2160 @ 30 Hz

Y-Processors: 2560 x 1600 @ 60 Hz

HDMI*: 4096 x 2304, 3840 x 2160 @ 24 Hz / 24bpp

DVI: 1920 x 1200 @ 60 Hz

This information is available here

https://software.intel.com/en-us/articles/quick-reference-guide-to-intel-processor-graphics# foot1 https://software.intel.com/en-us/articles/quick-reference-guide-to-intel-processor-graphics# foot1

Allan.

[JThom30]

I am running DisplayPort 1.2 at 2560 x 1440 @ 120hz on HD Graphics 4600 literally right now as I'm typing this on this 4720HQ (H) Processor.

According to the documentation, this is not supported.

Assuming the actual limit is 5Gbps (3840 x 2160 @ 60 Hz) then the equivalent bandwidth at 2560 x 1440 would be 135hz, yet anything about 120 gives me "not enough bandwidth" error. I don't really understand what's going on.

My best guess is that the refresh limit in the drivers are set at standard denominations (i.e 60fps, 100fps, 120fps), and since 144fps is above the bandwidth limitation of 5Gbps, anything between 120 and 144 can't be done despite the processor being capable of rendering it.

[Cesar_B_Intel]

Hello Zamoeba

Although processor could be capable of rendering 144 fps and monitor supports these rates and resolution, running Display-Port 1.2 at 2560 x 1440 @ 120hz on HD Graphics 4600 is not a supported integration thus, errors are expected.

Regards,

Caesar B.