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Sony’s new PS5 model weighs less because it has a smaller heatsink

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21–30 of 59 posts

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#21

> with rear exhaust temperatures around 3 to 5 degrees higher Is that C or F? I'm going to assume Fahrenheit. Also, is that bad? In other words, did they measure the rest of the unit to see if it was hotter or cooler? Maybe they've directed more heat to the exhaust. Which is the whole point, after all.

People more experienced say measuring exhaust temperature is not enough to determine if it's cooling better or worse, measurements need to be made internally.

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#22
post #19

Consoles have design lifetimes, and thermals are part of the computation that helps you figure out if your components are going to last as long as the warranty. Obviously, if you run a chip hot, its service life will be reduced. So companies develop models that tell them how long things like the SOC (main chip with CPU, etc.) will last for a given temperature and use frequency, and whether or not they've got a 1-year…

Hopefully the industry has improved their estimates since the Xbox 360

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#23

“I don’t think there’s any argument that this is a worse console, at least for thermals and for cooling,” says Evans. Worst quote they coulda pulled. Literally sends the opposite message than the one its meant to convey. Unless im even worse at english than i thought.

The guys from gamersnexus say measuring exhaust temperature is not enough to call this worse. So Austin Evans is probably reaching.

Edit: wrote his name wrong.

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#24
post #20

Earlier quoted context omitted.

Yeah, this generation of consoles are much more power hungry than their predecessors (you can just see that in their designs). PS5 draws like ~220W from the wall, Series X draws like 200+. The 360 draws like ~120W.

Does the power usage scale with resolution? Do games have "run at 1080p vs 4K but cooler/less power" option?

I would think so.

About 12 years ago I would use a lava lamp screen saver on my Linux machine. Out of curiosity, I measured the power draw of my computer idling with a blank screen and with the lava lamp animation. The animation was drawing something like 30 watts whereas a physical lava lamp uses a 25 watt bulb.

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#25

> with rear exhaust temperatures around 3 to 5 degrees higher Is that C or F? I'm going to assume Fahrenheit. Also, is that bad? In other words, did they measure the rest of the unit to see if it was hotter or cooler? Maybe they've directed more heat to the exhaust. Which is the whole point, after all.

It's C. In terms of if it's bad? shrug . With a smaller heat sink, the chips are almost certainly going to be hotter (dunno how much.. at least 3-5 degrees, maybe up to 10?). Does that matter? Tech youtubers love to emphasize cooling - which is fair, I think it's important, but I also think it's overdone. From the end-user standpoint, the question is does this meaningfully increase the rate that their unit thermal th…

I would argue it's technically a difference in °K not °C.

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#26

Earlier quoted context omitted.

It's C. In terms of if it's bad? shrug . With a smaller heat sink, the chips are almost certainly going to be hotter (dunno how much.. at least 3-5 degrees, maybe up to 10?). Does that matter? Tech youtubers love to emphasize cooling - which is fair, I think it's important, but I also think it's overdone. From the end-user standpoint, the question is does this meaningfully increase the rate that their unit thermal th…

I think for the end user the primary concern is not performance, but the potential fan noise. If the performance goes up or down, end users might not even notice, but if the fan is constantly kicking in and being too loud too often, more people will be concerned.

Agreed, this would be the main concern, since it's one the things people hated about the PS4 and PS4 Pro (being really loud). I don't think Sony would want a regression there either.

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#28
post #21

> with rear exhaust temperatures around 3 to 5 degrees higher Is that C or F? I'm going to assume Fahrenheit. Also, is that bad? In other words, did they measure the rest of the unit to see if it was hotter or cooler? Maybe they've directed more heat to the exhaust. Which is the whole point, after all.

People more experienced say measuring exhaust temperature is not enough to determine if it's cooling better or worse, measurements need to be made internally.

Thanks for that, I was thinking down that route. I just had a laptop where chip and heatsink had parted. The air coming out was not that hot, but you could have fried an egg on the nearby part of the case.

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#29
post #12

> with rear exhaust temperatures around 3 to 5 degrees higher Is that C or F? I'm going to assume Fahrenheit. Also, is that bad? In other words, did they measure the rest of the unit to see if it was hotter or cooler? Maybe they've directed more heat to the exhaust. Which is the whole point, after all.

It's centigrade. The video does all measurements in metric (weight in grams too). Anyway it's pretty common for consumer electronics people to talk in centigrade.

> Anyway it's pretty common for consumer electronics people to talk in centigrade

It's common for people to talk in centigrade. Fahrenheit is only used in the US, some dependencies and similar (like Liberia), so the vast majority of people on Earth talk in C.

Re: Sony’s new PS5 model weighs less because it has a smaller heatsink

#30

Earlier quoted context omitted.

It's C. In terms of if it's bad? shrug . With a smaller heat sink, the chips are almost certainly going to be hotter (dunno how much.. at least 3-5 degrees, maybe up to 10?). Does that matter? Tech youtubers love to emphasize cooling - which is fair, I think it's important, but I also think it's overdone. From the end-user standpoint, the question is does this meaningfully increase the rate that their unit thermal th…

I would argue it's technically a difference in °K not °C.

Kelvin has no degrees sign (°) because it’s an absolute unit.

https://sciencenotes.org/why-there-is-no-degree-in-kelvin-te...

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