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WHY CANT MY MAC RECORD 240 FPS !!!
- Thread starter Cadet
- Start date
Processing power is not infinite or free, and everything takes something. The more pixels per second you push through it, the more juice it takes to do that, and at some point, you run out.
That said, why does anyone need more than 60fps? You can't see or react that fast. Are you doing slo-mo or something like that?
That said, why does anyone need more than 60fps? You can't see or react that fast. Are you doing slo-mo or something like that?
Lawrence_SoCal
Active Member
What Aaron said... and then there is the fact that you are asking to do something very computationally intensive on a thermally throttled (ie lower- performance) system
you can do 240fps, of a small resolution canvas (ie less bits to process)... which is bound to NOT be what you are after
Basically you are asking the equivalent of competing at a drag race in a moped (or pacing a SR-71 with a turbo-prop)
In this case, you are using free, open-source software, written originally for x86 with lots of power and flexibility, recently ported to a brand new CPU platform, asking for (switching to other motorsport analogy) Formula 1 level performance. The situation is complicated by fanboys who have oversold the performance of the M2 chip. The M2 is very good at certain things, but not everything. And a key design focus for the M2 was battery efficiency, not outright power. At this point, certain functions perform well (ie stay within the walled garden). But you are stepping outside that garden with this request
So basically, wrong tool for the (high-end real-time video encoding) job. And is it even possible to encode 240fps on a M2 laptop when screen can't produce that ... so is CPU/GPU even creating all those frames in first place (ie, that many frames for OBS Studio to capture)?
Folks make such OBS Studio configs seem simple, but technically video compositing is complicated. And like most things, when you really want to push the envelope of performance (more than 60fps), it quickly gets expensive and tricky, the bleeding edge, so-to-speak. That doesn't mean impossible, but it does mean a whole lot of research, optimization, adjustments, and possibly, budget for custom code (and maybe even a small development team, test systems, etc) to pull something off. The M2 isn't my area of expertise... so no idea if 240fps is possible/practical at all on your system.
Start with no more than your screen refresh rate (ie if 60MHz screen refresh, don't go higher than 60fps to start... and even then.. on a M2 Macbook Air...??)
you can do 240fps, of a small resolution canvas (ie less bits to process)... which is bound to NOT be what you are after
Basically you are asking the equivalent of competing at a drag race in a moped (or pacing a SR-71 with a turbo-prop)
In this case, you are using free, open-source software, written originally for x86 with lots of power and flexibility, recently ported to a brand new CPU platform, asking for (switching to other motorsport analogy) Formula 1 level performance. The situation is complicated by fanboys who have oversold the performance of the M2 chip. The M2 is very good at certain things, but not everything. And a key design focus for the M2 was battery efficiency, not outright power. At this point, certain functions perform well (ie stay within the walled garden). But you are stepping outside that garden with this request
So basically, wrong tool for the (high-end real-time video encoding) job. And is it even possible to encode 240fps on a M2 laptop when screen can't produce that ... so is CPU/GPU even creating all those frames in first place (ie, that many frames for OBS Studio to capture)?
Folks make such OBS Studio configs seem simple, but technically video compositing is complicated. And like most things, when you really want to push the envelope of performance (more than 60fps), it quickly gets expensive and tricky, the bleeding edge, so-to-speak. That doesn't mean impossible, but it does mean a whole lot of research, optimization, adjustments, and possibly, budget for custom code (and maybe even a small development team, test systems, etc) to pull something off. The M2 isn't my area of expertise... so no idea if 240fps is possible/practical at all on your system.
Start with no more than your screen refresh rate (ie if 60MHz screen refresh, don't go higher than 60fps to start... and even then.. on a M2 Macbook Air...??)
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Ah yes, thermal. That's important too. It's easy to assume here, that your thermal design is sufficient to keep the system cool indefinitely while it's running flat out, so that the published specs really are what we have to work with, but that's not true for a lot of modern laptops. Especially the thin, super-portable ones.computationally intensive on a thermally throttled (ie lowers performance) system
The idea for those is to load something quickly, and then sit and cool off while the user looks at it. It might be just barely enough to play back an already-finished movie...barely...but that really is all. It can't produce one.
Lawrence_SoCal
Active Member
Actually, other than workstation class systems, or systems with a range of CPUs and GPUS, and the specific config is on the low-end (low performance) scale, MOST will thermally throttle. And even $5-10K workstation laptops with top-end configs will struggle at high CPU/GPU utilization for hours on end (especially with heat from latest NVMe drives if those also busy)but that's not true for a lot of modern laptops. Especially the thin, super-portable ones.