Scaling RT this way is the land of totally diminishing returns though. Even going to more than a couple of light bounces tend to produce nearly invisible results on practice - unless we're doing full path tracing and the light is actually rendering the whole scene for us but this isn't likely to be the norm on next gen.
Higher voltage is required to achieve higher clock, this is rather independent of heat dissipation efficiency. Basically high voltage makes electrons move more freely inside transistors, so that the transistors can switch faster. Otherwise due to propagation delay the circuit will run into instability issues. So there is no higher clock on lower voltage, unless it's a change of processing node.
Not always, undervolting + overclocking is a thing. You can push it further with more voltage but you can overclock with a undervolt. I do this on GPUs, it's probably not a thing on CPUs since I don't undervolt that, but you can overclock some on stock voltages, same for memory, just not as high when trying to push OCs to the limit.
www.youtube.com
That's when the stock voltage is already more than enough.Not always, undervolting + overclocking is a thing. You can push it further with more voltage but you can overclock with a undervolt. I do this on GPUs, it's probably not a thing on CPUs since I don't undervolt that, but you can overclock some on stock voltages, same for memory, just not as high when trying to push OCs to the limit.
9900K Overclocking & Undervolting - Fighting The Molten i9
Check prices below i9 9900K: http://geni.us/czbBx i7 9700K: http://geni.us/Guo838 i7 8700K: http://geni.us/T3RzA5V NCASE M1 Mods: https://optimumtechmedia.wi...
youtu.be
So when are they not enough on a product that should last a long time outside of extreme overclocked conditions (manual, maybe something by the manufacturer to show off something, a clock binned and overclocked for one event not mass produced). Even overclocked cards are shipped with a lot of room for increasing frequency out of the box, they have to be. A console can't ship with bleeding edge voltage + clock, that thing will degrade and need more voltage to hit it's original shipped numbers.
Welp the stock voltage on PS5 is just gonna be higher than normal cards then.
It's a consumer product, the voltage on it's components are going to be safe and tested to last. The main issue for consoles is to prevent RROD situations.
Yeah? I didn't say the voltage was gonna be so high that it reduces the lifespan, obviously they know the characteristics of the silicon and they will do their best balancing it. I was merely pointing out that you cannot get high clock for free simply with better cooling. And even if the "normal" voltage range is enough (extremely unlikely) they will leave some headroom for stability.
It depends on how it's made to work, how the throttling works. We will have to see how they made their device. For example, Nvidia make sure you can't kill your card by having it throttle based on a safe temperature. If you liquid cool your Nvidia card (Pascal or younger) and keep it in the 40 degrees you can get some awesome overclocks that don't throttle down, the cooler the better. On AMD Polaris cards the throttle wasn't so aggressive, what you got was what it was until temperatures got dangerous and it pull things down.
I was with your clarification, but this confused me. Normal? Maybe you're saying it's enough for some overclock numbers they posted? We will have to wait and see I think, unless everything to know about their device is known, the TDP, the amount of voltage they will use, the controller quality and more (safe voltages for it, the controller will likely die before the chip).
Assume we have a perfect cooling solution that can always keep the circuit at room temperature, you'll still need to increase voltage to get higher frequency. Since the processors run at such high frequency, the time it takes a transistor to switch state becomes nontrivial, if the switching time is too long, at the end of the clock cycle, the sequential circuits that make up our processor will have wrong result read from their combinational logic paths (propagation delay), which will result in instability like glitches or shutting down. Unless you can cool it down to some super low, sub-zero temperature (where the conductivity becomes much higher and even superconductive), this remains true.
V <= 1000 mV.That defeats the purpose of having a fixed peak power solution.
Did I say they didn't know what they are doing? I thought I said the exact opposite.
It would be if anyone could track it to a legit source. There was a thread earlier in the day and it was just excited retweets from accounts that kinda look similar to reliable ones.
It's a consumer product, the voltage on it's components are going to be safe and tested to last. The main issue for consoles is to prevent RROD situations.
The thing that caused RROD is likely the lead-free solder balls used which "when exposed to elevated temperatures for extended periods of time becomes brittle and can develop hair-line cracks that are almost irreparable". There's no way one of the console makers would not be sure to avoid a situation like this, it was devastating for Xbox 360. That's why R&D is important, the PS4 pro is loud, but it's a blower type cooler which are known to be loud, and it's apparently doing the job of not having a RROD situation, not even close to it as that would make big news.
That said, this is why overclocking, or overclocking+undervolting is so nice on PC. All the components that can be overclocked has to ship with some room, even after AMD launched RX 5600 XT with last minute bios updates to overclock them in response to a Nvidia card there was still room to overclock it. There has to be or a lot of people would have problems with a product they bought that wasn't working at stock settings.
AMD’s RX 5600 XT gets a speed boost to answer Nvidia’s big RTX 2060 price cut
Revised firmware lets GPU manufacturers ramp up clock speeds, reports claimwww.techradar.com
Not al all!
We have the "final" date of the last PS4 big games on a random Monday. That means the road is finally free of big PS4 communication.
I stopped to hope.
