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Forums - Microsoft - Xbox One readies shift to 20nm – but can a smaller node help it match the PS4’s performance?

 

Ever since the Xbox One and PS4 were unveiled as being based on 28nm technology, it’s been clear that both Microsoft and Sony would transition to smaller nodes as soon as those technologies were ready for prime time. It now looks as though Microsoft may make this jump before its rival. A sharp-eyed member of the Beyond3D forum picked up on the LinkedIn profile of one Daniel McConnell, an SoC designer at AMD, which discusses how he, “Successfully planned and executed the first APU for Microsoft’s Xbox One game console in 28nm and a cost-reduced derivative in 20nm technology.”

So what could it mean for Microsoft’s console to make a quick jump down to 20nm? In theory, such a shift could give Microsoft several advantages. Power consumption and die size both come down modestly at 20nm, which improves yields and price structure. The system chassis could theoretically be redesigned with new features or MS could target a cheaper model with certain capabilities removed. In the past, both Microsoft and Sony have used these periodic revisions to target modest improvements to storage capacity, performance, peripheral hookups, or other similar options.

 

 

But I think there’s an interesting question here, that strikes at the concept of what a console actually is and what Microsoft can or can’t get away with doing. For decades, consoles have been presented as fixed units. Sure, the external shell and some of the I/O hookups might change over time, but an Xbox 360 purchased in 2005 should be just as fast as an Xbox 360 bought in 2014. Consoles have been inviolate, even as PC hardware shifts fairly rapidly.

As Microsoft looks at its plans for a 20nm die shrink, it has to be asking if there’s a way to change the Xbox One’s design to better match the PS4. And it probably can — as we’ve previously discussed, there are two unused GPU partitions on the system that would give it a significant GPU performance boost. It might also be able to increase the size of the shared ESRAM cache.

The problem, though, is optics. Early adopters of the Xbox One can’t be particularly pleased that they bought a now-useless doorstop in the form of Kinect 2.0. No one is going to be happy if Microsoft rolls out a new version of the Xbox One (Xbox 1.5?). And the company would risk bifurcating its dev teams between haves and have-nots. For a company whose message has already been badly diluted and confused, the presence of two different types of console would be problematic at best. Furthermore, McConnell’s profile makes it clear that Microsoft chose to drive engagements that would minimize costs over increasing performance in future iterations of the SoC.

We’ve toyed with the idea of upgradeable consoles in other posts, but after the problems the Xbox One has had with brand and message, I think shifting the system’s design now would only confuse and frustrate users further. 20nm die shrinks are also expected to be relatively modest, with the following 14/16nm technology delivering more raw performance and the bulk of improved thermals.

http://www.extremetech.com/gaming/193371-xbox-one-readies-shift-to-20nm-but-can-a-smaller-node-help-it-match-the-ps4s-performance



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I don't think MS will make a any major changes accept to try to cheapen price.



They won't make it more powerful, probably just use this to make a slim X1 from the sounds of it.

Edit: It would be funny to see a "New" Xbox One :P.



KingdomHeartsFan said:

They won't make it more powerful, probably just use this to make a slim X1 from the sounds of it.

Edit: It would be funny to see a "New" Xbox One :P.


I agree, they will only try to cheapen the cost or make a slim but I doubt they will do it so early in the life cycle but I quess why not.



With this the power consumption of Xbox One will be improved but not raw power difference with PS4.



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The Xbox One Slim is almost ready then! Prepare for that permanent price drop~~



tiffac said:
The Xbox One Slim is almost ready then! Prepare for that permanent price drop~~


Could be right, they would at least wait until E3 to reveal slim, give them some motivation going into the holidays. However I don't think it's likely.



Would it be theoretically possible that a console manufacturer upgrades the hardware so that the newer releases plays the same game as the existing X1, but with resolution and/or fps? Like upgrading your PC to play your existing library with higher specs?



Puppyroach said:
Would it be theoretically possible that a console manufacturer upgrades the hardware so that the newer releases plays the same game as the existing X1, but with resolution and/or fps? Like upgrading your PC to play your existing library with higher specs?


From what I read it has never been done on console but in theory it could work.

here is what i read on the page.

What about DDR4?

One intriguing option Microsoft might take would be to outfit the console with DDR4. There’s been a great deal of discussion over whether or not the Xbox One’s quad-channel DDR3 memory bus is a problem for most games, with some general consensus that it likely is. Microsoft could close this gap, at least in theory, by upgrading to a faster form of DDR4. 8GB of DDR4-2700 or even DDR4-3200 would improve memory bandwidth by 25-50%. The question, however, is whether games could be programmed to run equally smoothly on both sets of hardware.

Again, that’s problematic. If memory bandwidth is really the issue, Microsoft might wind up having one console that can run 1080p safely, while the other is stuck in 900p territory. Is it possible to build a resolution toggle into games? PCs certainly have done it for years, but it’s not clear if this is possible on the console side.

Microsoft could theoretically swap out the DDR3 on the Xbox One for DDR4 without changing any of the underlying specs, but I suspect this will be difficult. DDR3 and DDR4 have very different latencies and matching the two well enough to make them identical at the design level might be more trouble than it’s worth.



Yeah definitely see MS reducing the size of the unit/chips. They certainly have more scope for a slim than Sony do.

In terms of slim's, isn't this a bit soon compared to previous slims though? Hasn't it normally taken 2 years at least to release a new form factor?



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