Corona on a laptop

[cgbeast]

Is corona designed to run as efficient on a laptop as it it on a desktop? I use a MSI with a 11th Gen Intel(R) Core(TM) i9-11900H @ 2.50GHz   2.50 GHz and render times are slow. Even when I DR to a old dual quad Xeon desktop, 4k render times are about 4 hours on a heavy model.

[Avi]

Hi,

If you are using a laptop for rendering then make sure it is not set to power saving mode, most laptops comes with performance mode which is usually controlled by software provided by the laptop company itself, Make sure the mode is not set to run the laptop on quiet or default mode but it is set to the highest performance mode.

Corona is CPU based. The more powerful the cpu you have, faster it will render.

[romullus]

I think you're looking at the issue from the wrong perspective. What you really should ask - does laptop is designed to dissipate heat as efficiently as the desktop PC? As Avi said, Corona will run on any CPU as fast as it can, it doesn't matter what is the form factor of the case around that CPU. The main reason why laptop CPUs typically are slower than their desktop counterparts, because laptops are much harder to cool efficiently.

[TomG]

Until recently, laptops were generally always going to be quite significantly slower than desktops, especially if you factored in cost (as laptops cost more in order to get everything miniaturized and fitted in, more work involved, I'd imagine narrower tolerances to be met in engineering). Corona will use the CPU to the maximum it can, but laptop CPUs would deliver less than a desktop could, e.g. here are the benchmark results for your CPU https://corona-renderer.com/benchmark/results/cpu/11900H which is slower by along way than my 3960X desktop got which came in around 38s.

That said though, the latest generation of laptop CPUs are finally in the same ballpark without being crazy expensive, I am now using a 13980HX to work on, https://corona-renderer.com/benchmark/results/cpu/13980HX , which comes in at 45s and not that far away from desktop at all (and was actually cheaper than my desktop was at the time :O ). So you can get "desktop like performance" out of laptops these days - though of course there are desktops out there that are still 3 times faster at 11 to 15s but those are not inexpensive :) Anyway, I'd say you can now effectively work on a laptop these days if you wanted to.

[Darawork]

Hi,

Some very good explainations above.
I haven't bought a laptop in about a decade or more.
They are nice, and it's good to hear that they are getting better, generally.

But, more often than not, a Desktop will always be better in terms of configurability;
Hardware componant access, hardware upgrades, swopping out GPUs or even CPUS, expense, durability, watercooling, custom componants, neon fans, repair, etc.

It's nice to hear people are still buying laptops though.
Alienware, MSI, ASUS, HP, IBM, Dell. Nice.

They should bring back VAIOs, I always loved them.
Beautiful, powerful, but very brittle.

But in the meanwhilst, Desktops all the way.
The bigger the better. :)

Regards,