Razer Blade 15, Base Edition, 2020 with 2070 (Max Q?) - 1440p 144hz External Monitor

FeaR418 · April 2, 2021

Hey all,

I was wonder if my Razer Blade 15 (specs in title) will run my lg 27gl850b at 144hz? I have that monitor for my main pc. however i am looking to get a second (more likely the lower spec 27 inch 144hz, 1440p that LG has) at my parents place as I work from home for a bit.

Currently, its only letting me push the gl850 at 100hz via HDMI, is there a reason for this? I am unable to find any limitations showing it shouldnt run it at 144hz. The manual for the monitor states I can run it at 144hz via hdmi?

Thanks

Chris Pratt · April 2, 2021

You should be able to do 1440p at 144hz over HDMI, as long as it's HDMi 2.0 on both sides, which I'm pretty sure is the case. It might be a cable issue. Try a cable that's specifically rated for HDMI 2.0 or higher.

FeaR418 · April 2, 2021

9 minutes ago, Chris Pratt said:

You should be able to do 1440p at 144hz over HDMI, as long as it's HDMi 2.0 on both sides, which I'm pretty sure is the case. It might be a cable issue. Try a cable that's specifically rated for HDMI 2.0 or higher.

https://www.amazon.com/Syncwire-HDMI-Cable-6-5-2-0/dp/B071WBWGBT is the cable im pretty sure I'm using... really not sure since this should support it?

Chris Pratt · April 2, 2021

21 minutes ago, FeaR418 said:

https://www.amazon.com/Syncwire-HDMI-Cable-6-5-2-0/dp/B071WBWGBT is the cable im pretty sure I'm using... really not sure since this should support it?

That does say it's 2.0, but I interestingly it specifically says it only supports 1440p at 120hz, which is both lower than spec and higher than what you're getting.

It doesn't say it's certified, and it surely would if it was. That doesn't necessarily mean anything as not every manufacturer bothers to get certified because it costs to do so, and you have to maintain a level of quality control that may not always be tenable for companies trying to sell cheap cables. There's no guarantees you're going to get 100% to spec capabilities without certification, though.

In other words 1440p at 100hz may just be the max capabilities of this particular cable. You might get better or worse from an exact duplicate. If you need to hit the spec, you may need to seek out a certified cable, but it's probably going to be more expensive.

Edit: I take that back. There's more than a few on Amazon that say they're certified (assuming they're not lying) that are around $15. I also completely didn't think about getting a 2.1 cable. It's going to be more in the $25-30 range for one of those, but even with variance, it should then at least be able to handle 1440p at 144hz.

FeaR418 · April 2, 2021

7 minutes ago, Chris Pratt said:

That does say it's 2.0, but I interestingly it specifically says it only supports 1440p at 120hz, which is both lower than spec and higher than what you're getting.

It doesn't say it's certified, and it surely would if it was. That doesn't necessarily mean anything as not every manufacturer bothers to get certified because it costs to do so, and you have to maintain a level of quality control that may not always be tenable for companies trying to sell cheap cables. There's no guarantees you're going to get 100% to spec capabilities without certification, though.

In other words 1440p at 100hz may just be the max capabilities of this particular cable. You might get better or worse from an exact duplicate. If you need to hit the spec, you may need to seek out a certified cable, but it's probably going to be more expensive.

Edit: I take that back. There's more than a few on Amazon that say they're certified (assuming they're not lying) that are around $15. I also completely didn't think about getting a 2.1 cable. It's going to be more in the $25-30 range for one of those, but even with variance, it should then at least be able to handle 1440p at 144hz.

Sounds good - i'll try a different cable. Not a big deal since most games wont run at 144hz at 1440p on this machine either way so im not overly worried if im stuck at 100hz and i just wanted a sanity check, I am overbuying the monitor a bit as they last a long time, and i have a similar one already so i know what im getting without having to do much research.

Thanks!