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LudicrousSpeed said:


It’s pretty amazing how over time the GitHub leak has turned out to be almost entirely accurate. GAF and Reeeeeee mods should be dining on crow for months. It also explains the delay in dev kits that people were rumored to be annoyed by earlier this year, MS was simply waiting for full RDNA2 support.

There's nothing suggesting this is likely. The idea that Sony would be the first to want to cut the generation short before Microsoft with the amount of software they're selling makes little to no sense anyway. Nor does the idea that Sony would finish development a year ahead of Xbox Series X, but then spend the next year year not further developing their GPU, just sitting on their thumbs, when both consoles launch at the exact same time. Meaning they were finalized around the same time. Even AMD's RDNA2 launches literally the same week as PS5 and XSX. They weren't waiting for anything.

Sony and Microsoft were developing RDNA2 in tandem together with AMD at the same time. They can chose whatever features they want, with perhaps the exception of DirectX. And that may just be what this headline is alluding to.

You're using the term "Full RDNA2 support" as if AMD's solution is the standard that Sony and Xbox are borrowing from. It's not. AMD may have even borrowed ideas from Sony and MS, as Cerny pointed out. And vice versa.
All three were developed together, and chose different solutions because they are all for different systems. It just so happens that only AMD named their solution "RDNA2". I don't think we know what MS and Sony named theirs. But RDNA2 is the buzzword that everyone is familiar with.

So since AMD are using DirectX Raytracing and Sony is using a non-DirectX version, MS can say that they are the only ones to have 'full RDNA2 support' and que the conspiracy theories about a 2019 release, inferior architecture, power consumption, etc.

Pemalite said:

Power Supply does not equal Power Consumption.

The law of thermodynamics literally comes into play, essentially a Power Supply converts energy (I.E. 240v down to 12v) and in the process of doing so looses some energy during the conversion process... And every power supply has an efficiency curve.

So for example... An 80% efficient 400w power supply would actually draw 480w from the wall to deliver 400w, where-as a 90% efficient power supply would draw 440w from the wall.

Both deliver 400w.

And another aspect we need to keep in mind is that as a power supply begins to age, they actually do become less efficient, so console manufacturers need to build additional tolerance in the power supply to ensure that as it ages, it will still be able to provide the electrical needs over the long term.

In short... Please take the 350w vs 320w PSU as irrelevant, because ultimately it is.
What needs to happen is proper power draw analysis done on individual components... And that generally isn't happening until these devices are released.

That's some interesting insight there, thanks. Didn't know that they'd both deliver 400w in that scenario.
I was thinking along the lines of them having different fans, different SSD controllers, overclocking, etc. 

Pemalite said:
Hiku said:

So the idea that they'd somehow miss out on something they developed together sounds extremely unlikely.

I think the reason people got confused is because these chips were designed while AMD were still working on their PC mass market RDNA2. So in that sense both Microsoft's and Sony's solutions could be called RDNA 1.5. Not because they are inferior to RDNA 2, but because they are custom, different, and finalized shortly before AMD's PC version.

But because 99.99% of people will look at 1.5 and think it means something negative, Sony and MS would want to call them RDNA2 based.

It's really to early to tell what the fundamental differences are between RDNA 1.0 and 2.0 from a low-laying perspective anyway.

But even Microsoft's Xbox Series X has some significant deviation from known PC RDNA 2.0 GPUs, such as lacking an infinity cache.

Yeah, some details have been announced, but others will be discovered as people get to test them. The first AMD GPUs with RDNA2 are launching the same week as XSX and PS5, so it sounds like they were all finalized around the same time. But they'll all differ from each other in some ways because they're designed for different systems. AMD's solution needs to take into account a whole slew of different hardware configurations, while Sony and MS's is based on set hardware, so they can do some specific things with theirs.

sales2099 said:

I mean AMD confirmed the disparity but sure let’s drag this out a little more haha 

DirectX Raytracing vs Sony's Raytracing? Keep in mind that it was also AMD developing this solution, so they would likely create something that easily translates between PS5 and their own GPUs, which use DirectX RTX.

Either way these consoles are now seemingly a lot closer to PC than ever before.

Last edited by Hiku - on 29 October 2020