Intel HD 4600 and 4K

[Mark77]

Some people say that the HD 4600 handles 4K/60Hz just fine (ie: the Intel spec sheet:  http://ark.intel.com/products/80373/Intel-Core-i5-4310M-Processor-3M-Cache-up-to-3_40-GHz).  Others say that it is limited to 60Hz. 

 

What's the real deal?  Is it just a matter of using DisplayPort being mandatory?

[Narigaur]

You should probably be fine, but use DisplayPort since HDMI only supports it up to 30Hz and doesn't officially support 21:9... According to Linus

[HPWebcamAble]

4 minutes ago, Mark77 said:

Some people say that the HD 4600 handles 4K/60Hz just fine  Others say that it is limited to 60Hz.

So they say the same thing right? 4k 60 Hz?

Note that you won't be gaming at the resolution with an iGPU!

[Glenwing]

It can do 4K 60 Hz over DisplayPort. It will be limited to 4K 30 Hz over HDMI.

[Mark77]

31 minutes ago, HPWebcamAble said:

So they say the same thing right? 4k 60 Hz?

Note that you won't be gaming at the resolution with an iGPU!

Sorry, I meant 4K 30Hz. 

 

I don't game (yeah, I know, blasphemy on LTT!).

[HPWebcamAble]

3 minutes ago, Glenwing said:

It can do 4K 60 Hz over DisplayPort. It will be limited to 4K 30 Hz over HDMI.

Max Resolution (HDMI 1.4)    3840x2160@60Hz

 

But intel's site says HDMI 1.4 can do 4k at 60 HZ? Or am I reading that wrong?

[Glenwing]

3 minutes ago, HPWebcamAble said:

Max Resolution (HDMI 1.4)    3840x2160@60Hz

 

But intel's site says HDMI 1.4 can do 4k at 60 HZ? Or am I reading that wrong?

The maximum of HDMI 1.4 is 4K 60 Hz uncompressed. If you use compression (such as 4:2:0 subsampling) then you can get 4K 60 Hz with reduced image quality. NVIDIA drivers were updated some time ago to enable this feature on some of their older cards, but I'm not aware that Intel or AMD have done the same. I haven't checked in a while, so maybe that's changed. It should also be noted though that this option will only be available on displays which support subsampling, mostly TVs.