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Forums - Gaming - Tech Talk Part 1: PS4 GPU Compute Explained, and some other stuff, AC;Unity CPU load XB1 ESRAM 204Gb/s..etc

Intrinsic on 19 October 2014
Vena said:

I understand the details, you don't need to list them out to me.

As for the quoted: yes, this was my point. They built the game on the lowest common denominator. But, as I said listen to the bombcast, there is some ambiguity if, in fact, even the PS4 is capable of more than what Unity can produce. The bombcast went into this, into the insider dev info and into a test-against-experts. There is a real issue here that, simply put, optimizing for GPGPU may not have been able to fix or would have cost too much to offload onto the GPU for some or other inefficient process.

Like I said, zero-sum game but we, as armchair developers, do not know what the sum involves.

Personally, I think that is just impossible. And mainly for two reasons. One and as I keep saying... the XB1 version of the game s running at 900p@30fps. Even if devs do not take advantage of the PS4 power gap it doesn't change the fact that the gap is still there. If 900p@30fps was the best they could accomplish on the XB1, if chnneling the same effort there is no doubt in my mind that they could achieve beter on the PS4. This is not about more difficult or putting in extra work. Its a perfomance gain that you pretty much get by default. I don't know why almost a year after these consoles were released there are some that still talk about or even doubt this fact. Another way to look at this, is that there is not one single metric by which the XB1 is equally as powerful as the PS4. This is code we are talking about here. Better hardware should run code better. The only way the XB1 is arguably better than the PS4 is in terms of there 1.75ghz CPU clock as opposed to the 1.65ghz clock on the PS4. But even that does not make the XB1 have a more powerful CPu than the Ps4 (long story).

And secondly.... never in the history of gaming has the potential of any generation of consoles been maxed out within the first year of release. Just wait till next year when yu see AC6 running and looking better than AC5. Even on the XB1. Then I would really like to see all those that think somehow the XB1/PS4 cannot do better than this.



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Norris2k on 25 October 2014
KreshnikHalili said:


I thought microsoft is leading in cloud-computing that´s where my impression was coming from ;). And I highly believe that the azure servers microsoft owns are by a big margin more capable than those of sony. using the ps4 as a cloud-service leads to some issues. first of all, the ps4 of your friend has to be on(line). second, he can´t play on his ps4 at the same time. third, it can´t be used to expand the capabilities of the restricted hardware itself.

About your question - I can´t give you a real answer to that. It depends on how much data you have to transfer for the physics and how much for the image-output of the whole game. While processing the whole game on the cloud can lead to input-lag, outsourcing only the physics / part of the physics is negligible input-lag-wise.

About cloud, I'd like to reply, as I'm myself involved in cloud development (not in game). MS has a very good offer in term of cloud, but:
- Azure is not MS xbox one exlusive. Nothing can prevent a game on the PS4, or even a Sony's game on the PS4 to use (efficiently) Azure. The only difference could marginally be cost, with MS charging less for a xbox one exlusive usage.
- Azure is one of the many excellent services, just as are IBM bluemix, Google cloud, Amazon cloud, etc. And these services are growing fast, it's very available, getting cheaper, better, faster. There is about nothing that MS can do that any other service can't do. There a few things that make a good cloud service : scalability, that requires scale (the bigger you are the better are scalability and cost), and the variety of service and products (which are not so relevant for calculation, and again not specific to Azure), reliability, availability... and MS is not the only one that can offer a good level.
- if we focus only on Constructor services, Sony's service could very quickly improve dramatically, because, cloud for external calculation is only about servers and bandwith : anybody can do that, or make a contract with someone that can.



KBG29 on 25 October 2014
Norris2k said:
KreshnikHalili said:


I thought microsoft is leading in cloud-computing that´s where my impression was coming from ;). And I highly believe that the azure servers microsoft owns are by a big margin more capable than those of sony. using the ps4 as a cloud-service leads to some issues. first of all, the ps4 of your friend has to be on(line). second, he can´t play on his ps4 at the same time. third, it can´t be used to expand the capabilities of the restricted hardware itself.

About your question - I can´t give you a real answer to that. It depends on how much data you have to transfer for the physics and how much for the image-output of the whole game. While processing the whole game on the cloud can lead to input-lag, outsourcing only the physics / part of the physics is negligible input-lag-wise.

About cloud, I'd like to reply, as I'm myself involved in cloud development (not in game). MS has a very good offer in term of cloud, but:
- Azure is not MS xbox one exlusive. Nothing can prevent a game on the PS4, or even a Sony's game on the PS4 to use (efficiently) Azure. The only difference could marginally be cost, with MS charging less for a xbox one exlusive usage.
- Azure is one of the many excellent services, just as are IBM bluemix, Google cloud, Amazon cloud, etc. And these services are growing fast, it's very available, getting cheaper, better, faster. There is about nothing that MS can do that any other service can't do. There a few things that make a good cloud service : scalability, that requires scale (the bigger you are the better are scalability and cost), and the variety of service and products (which are not so relevant for calculation, and again not specific to Azure), reliability, availability... and MS is not the only one that can offer a good level.
- if we focus only on Constructor services, Sony's service could very quickly improve dramatically, because, cloud for external calculation is only about servers and bandwith : anybody can do that, or make a contract with someone that can.

Well said.

Piggy Backing off what you said. The bigger Sony's userbase gets the easier it will be for them to do business with cloud companies. If PS4 games start gaining 3, 4, or 5 times larger userbases than the competition they will move from trying to sell their vision, to cloud services battling to earn there buisness.

That is why I am really hoping Sony's Xperia line starts to take off, and they can start making better deals with mobile providers. If they can gain enough market share, carriers will be battling over who has the first network to run PS4 streaming, and PS Now over their networks. IMO, that is the ultimate future of portable gaming, and gaming in general. One game, developed for one platform, across every device you own.

At that point the bandwidth and proccessing power available in the cloud would easily be capable of delivering the kind of promises Microsoft has made.



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