Can MBP 2017 support 2 4K displays without Lag ?

[soamz]

HI, my model is,
MacBook Pro (15-inch, 2017)
2.9 GHz Intel Core i7
16 GB 2133 MHz LPDDR3
Radeon Pro 560 4096 MB
Intel HD Graphics 630 1536 MB


Im right now using a LG 27 inch 4K monitor with my MBP and its so amazing.
Im planning to get the 2nd one, so I can connect 2 same monitors on both sides of MBP with the USB-C.

Will it be able to drive or will it lag ?

 

[mctrials23]

It will be fine. I run the same 2 monitors on a 13" 2016 and its OK. With a dedicated GFX card you won't have any issues.

 

[soamz]

It will be fine. I run the same 2 monitors on a 13" 2016 and its OK. With a dedicated GFX card you won't have any issues.

Awesome. I will try today with a 1080p curved monitor. If it can drive it then I guess it can drive a 4K too

 

[Sovon Halder]

Awesome. I will try today with a 1080p curved monitor. If it can drive it then I guess it can drive a 4K too

Not necessarily. 4K is 4 times more pixels than a 1080p display.

There is a spike.

I had a discussion in this forum (can't find the thread now) where people put their real usage data like how much it costs the CPU/GPU when external displays are plugged in. Thing it, it's very minimal. And you won't notice. The only thing you'll see in the spike as soon as the monitor is plugged in. For 1080p it's a small bump in CPU usage. For 4K it's a big spike but only for about 10 seconds. Then everything is back to normal.

Your computer will handle two 4K monitors without any hiccup.

 

[gigapocket1]

Not necessarily. 4K is 4 times more pixels than a 1080p display.

There is a spike.

I had a discussion in this forum (can't find the thread now) where people put their real usage data like how much it costs the CPU/GPU when external displays are plugged in. Thing it, it's very minimal. And you won't notice. The only thing you'll see in the spike as soon as the monitor is plugged in. For 1080p it's a small bump in CPU usage. For 4K it's a big spike but only for about 10 seconds. Then everything is back to normal.

Your computer will handle two 4K monitors without any hiccup.

Interesting.. Im having problems when I run my 2016 15inch tbMBP on 2 screens. When Im running Final Cut/Photoshop.. Its tough to know if its a GPU thing or if its running out of ram.