Current Generation Hardware Speculation with a Technical Spin [post GDC 2020] [XBSX, PS5]

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You will have a 100% sustained GPU/CPU combined... With fixed power, if you can do it one, you can do it all the time. Downclock will only happen if that estimated power budget envelope is passed. It is intended for a worst case scenario thing, not a common thing.
The downclock happens in cases where in another solutions the fan would fire up.
This is intended to keep the system stable at those high clock speeds, allowing them to be a reality on these extreme situations, and not something to be used regularly.
And 2% are 2%. All% extra is good!


If they could have 100% GPU and CPU all the time, there would not be a reason for boost clocks (or what they call it now, variable, smartshift etc). In special if they had trouble locking 2ghz for gpu and 3ghz for cpu at a fixed rate. This variable clocking enabled huge boosts for a reason.

From other thread.

They expect games to run at boosted frequencies, but they may not, falling back to the standard clock speeds of the originals as per the GitHub testing.

From Alex from DF


DF has stated they have input from real developers on the matter.

Yes, when you have the closest machines based on paper specs ever, and people are using phrases like “quite staggering,” you have to cock an eyebrow. Especially who he’s replying to.

Jason, is that him who leaked to everyone regarding PS5/xsx?
 
If they could have 100% GPU and CPU all the time, there would not be a reason for boost clocks (or what they call it now, variable, smartshift etc). In special if they had trouble locking 2ghz for gpu and 3ghz for cpu at a fixed rate. This variable clocking enabled huge boosts for a reason.

From other thread.



From Alex from DF


DF has stated they have input from real developers on the matter.



Jason, is that him who leaked to everyone regarding PS5/xsx?
Dictator didnt say anything about staggering power difference. The guy below said it but he didnt work on any of the two.
Dictator said that based on the features MS revealed, it is an extremely efficient machine that increases substantially the performance you can get from the hardware than what's suggested on paper. He pointed that these are features that Sony did not speak of at all and he wished we had such information available. If Sony did not add such efficiencies on the PS5 then thats when the difference will be staggering. In the mean time this is a big unknown.
 
Yes, when you have the closest machines based on paper specs ever, and people are using phrases like “quite staggering,” you have to cock an eyebrow. Especially who he’s replying to.
Era have a long thread of many devs impressions and journalists reporting about their contacts, it helps getting a general idea. But that single one is a desingenious outlier when we look at the person's competence and job history. This will not age well.

Singling out the ones that fit a narrative is not a good idea.
 
Era have a long thread of many devs impressions and journalists reporting about their contacts, it helps getting a general idea. But that single one is a desingenious outlier when we look at the person's competence and job history. This will not age well.

Singling out the ones that fit a narrative is not a good idea.
Where is the link to the thread?
 
If you listen to Cerny's presentation from about 37:10, the GPU seems quite willingly to reach it's maximum frequency with the new variable frequency strategy Sony have implemented. He even said that they had to cap the frequency at 2.23 GHz (implying it would try to run even higher if allowed) to secure that the on chip logic worked properly.

This is like every overclock ever. The whole chip doesn't fail when you hit your max clock, one component fails and takes the rest of the chip with it.

Language like that would suggest they really are pushing this chip as hard as it will go. I wonder how that will impact yields/supply?
 
If they could have 100% GPU and CPU all the time, there would not be a reason for boost clocks (or what they call it now, variable, smartshift etc). In special if they had trouble locking 2ghz for gpu and 3ghz for cpu at a fixed rate. This variable clocking enabled huge boosts for a reason.

From other thread.



From Alex from DF


DF has stated they have input from real developers on the matter.



Jason, is that him who leaked to everyone regarding PS5/xsx?

About that Dictator post:


So, stop with the fud. PS5's SSD will allow what will allow being so fast. Period.
 
If they could have 100% GPU and CPU all the time, there would not be a reason for boost clocks (or what they call it now, variable, smartshift etc). In special if they had trouble locking 2ghz for gpu and 3ghz for cpu at a fixed rate. This variable clocking enabled huge boosts for a reason.

You seem to not having understood anything at all of the presentation. Or at least if you did, I did not understood the same as you! Maybe someone else can help here?

As I understood it PS5 clocks will not be at maximum all the time. That's why she has boost clocks. The clock speeds will adjust according to the workload, just like standard PC cards do. The difference here is that power consumption is fixed, unlike the PC.

Xbox is the exact opposite. Fixed Clocks, variable power consumption. On PC both are unlocked.

But with workload decreases or increases the clock speed will adjust. As such clock speed will not be 100% all the time. No game ever requires 100% all the time. In the same game, in the same scenario, you look in a different way and demands on the GPU will change.
Clock speeds will adjust to that demand, just like power consuption adjusts on the XBox.
The only way clock speeds can be at 100% all the time is if you lock the clock speeds. And in that case is the power consumption that changes.

That's how I understood it... On really heavy games, clock speeds will be maximum most of the time, but not all the time, since demands are never constant and maximum.If, by any chance you go over the budget on a clocked clocks system the fan would fire up. On this case, the system will not let it's temperature go above the maximum expected. It will downlock 2 to 3% allowing it to gain back 10% power usage and keeping temperatures. Hardly anything with impact, but a solution to allow a system with high clocks stable.
 
As I understood it PS5 clocks will not be at maximum all the time. That's why she has boost clocks. The clock speeds will adjust according to the workload, just like standard PC cards do. The difference here is that power consumption is fixed, unlike the PC.
No, the opposite. It will always be boosted. The clock speeds can only go down not up. The power is fixed so it can't gain more power if it needs it, there is a fixed amount of power that the mobo will supply at which both CPU and GPU will be able to maintain it's clock rate cap. Under certain loads and the power requirements from GPU or CPU need more than can be supplied it must borrow from one or the other. Causing a down clock in 1 or the other. If the load is too high both will start down clocking to their base clocks. (which were not announced).
 
About that Dictator post:


So, stop with the fud. PS5's SSD will allow what will allow being so fast. Period.
1242516721673441280

Who is this Andrew Maximov and why are they considered more reputable than Digital Foundry?
 
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