4K 120fps is now on iPhone...

eatstoomuchjam · Wednesday at 02:22 PM

1 hour ago, Eric Calabros said:

What I'm talking about is very clear and there is an expression for that in english language: Horses for courses. Just because two different devices do a similar work in some situations doesn't mean the CPU inside device A is suitable for the device B. GoPro isn't a Japanese conservative company, and yet they didn't use Snapdragon.

No. They either use Ambarella (like every other action camera vendor) or make their own (which might be why they're struggling)

1 hour ago, Eric Calabros said:

1. Snapdragon, fabbed 12nm or 3nm, has an architecture designed to do a lot of things that are not related to professional dedicated camera, like gaming, playing music, video editing, web browsing, online money transfer, controlling diverse set of peripherals. Look at the M4. Nearly a quarter of the chip is occupied by the GPU:

GPU, huh? Graphics Processing Unit? You're right. It would be stupid to think that there's anything in a camera that could use a graphics processing unit. Things like web browsing and online money transfer are not done with dedicated hardware - they are done with general purpose CPU cores. In context of a camera, they would run the operating system, display menus, etc. Audio encoder/decoder ("playing music") are, in fact, useful in cameras. Video editing? Do you mean encoders and decoders for popular video formats? Hmm. Sure would be weird to put those in a camera.

1 hour ago, Eric Calabros said:

While smaller node for dedicated camera chip is always good news, the big portion of the heat is generated by moving electrons from point A to point B (Sensor to RAM, RAM to CPU, CPU to CFe card). So as long as resolution/frame rate war continues, we'll have heat issue no matter what. So a slim active cooling system should have higher priority than an expensive jump to smaller node.

1) This is wrong. Learn how things work before talking about them. The amount of heat generated by "moving electrons" isn't a lot - otherwise, power lines and every electrical cord in the house would be too hot to touch. People would need special coolers installed on the interconnects on their computers between the ram and the processor. Every RV with a 30A receptacle would need several inches of asbestos by their house connection.

2) Even if it were true, if all other factors are even, if every other system has been optimized as much as possible for efficiency, reducing the power draw of any one component is a win.