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Forums - Microsoft - Kinect uses less than 10 per cent of Xbox 360's processor

Gnizmo said:


This makes the most sense to me. I would hope this is referencing the minimum needed for any interaction rather than a cold hard maximum. That way a game that the finer details being very important are covered while not taking much out of the games that have it more as a lolwaggle mechanic which is still sometimes fun.

I disagree that this is a huge chunk though. Processing power has kind of hit a logistical maximum with games. Look at Civ 5, Starcraft 2, Left 4 Dead 2, or hell even Crysis. Dual core 2.4 Ghz processors cover pretty much everything, and last I heard the 360 had that and more. So long as the ram isn't drained I don't think there will be any difference at all graphically.

I personally wouldn't want to play late game on a large map with a 2.4Ghz Core 2 Duo or Athlon X2. I personally play with a Phenom X4 @ 3.0Ghz and I would appreciate some more processing performance. The AI in that game is a killer.

Anyway the interesting thing is that Kinect uses a decent whack of GPU performance as well. It is a legitimate GPGPU application and deserves credit for that alone, especially on a DX9 GPU. Its probably the equivalent effort to 'maximising teh Cell' if you go by estimates that GPGPU is about 5* harder than Cell programming.





Tease.

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Squilliam said:

 

Anyway the interesting thing is that Kinect uses a decent whack of GPU performance as well. It is a legitimate GPGPU application and deserves credit for that alone, especially on a DX9 GPU. Its probably the equivalent effort to 'maximising teh Cell' if you go by estimates that GPGPU is about 5* harder than Cell programming.

huh? The image processing required basically yelled "use the shaders in the GPU" right from the start, and I think people know how to write shader programs on Nvidia GPUs. getting the Cell to talk with the SPUs and the GPU is a lot harder in all likelihood.



drkohler said:
Squilliam said:

 

Anyway the interesting thing is that Kinect uses a decent whack of GPU performance as well. It is a legitimate GPGPU application and deserves credit for that alone, especially on a DX9 GPU. Its probably the equivalent effort to 'maximising teh Cell' if you go by estimates that GPGPU is about 5* harder than Cell programming.

huh? The image processing required basically yelled "use the shaders in the GPU" right from the start, and I think people know how to write shader programs on Nvidia GPUs. getting the Cell to talk with the SPUs and the GPU is a lot harder in all likelihood.

Unlikely. Shader programming is significantly tougher than SPU programming and requires a lot of finese, especially when other programs are running sequentially or at the same time. Epic attests to the same thing as well I believe that it went something like this:

1: X86

2. PPC.

5. SPU

10. DX10 GPU

In terms of quantity of money needed to be thrown at each problem.

However this is a DX9 GPU which doesn't benefit from any of the



Tease.

I like Kipman. He made me able to post something other than just ellipsis on that "contributions of your country to gaming" thread, and what a great contribution that is. Even as a Sony fan there's a side of me who wishes to see Kinect succeding,



 

 

 

 

 

Squilliam said:

I personally wouldn't want to play late game on a large map with a 2.4Ghz Core 2 Duo or Athlon X2. I personally play with a Phenom X4 @ 3.0Ghz and I would appreciate some more processing performance. The AI in that game is a killer.

Anyway the interesting thing is that Kinect uses a decent whack of GPU performance as well. It is a legitimate GPGPU application and deserves credit for that alone, especially on a DX9 GPU. Its probably the equivalent effort to 'maximising teh Cell' if you go by estimates that GPGPU is about 5* harder than Cell programming.




Neither me, but people were speaking of the graphical effects. A game the scope of Civ 5 is pretty damn rare when you get down to it. I use a very similar processor so I definitely can see what you mean. AI and units on screen will take a hit, but there are ways to make it work.



Starcraft 2 ID: Gnizmo 229

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lol if it used alot of power it wouldnt be able to run a game



cory.ok said:
Baalzamon said:
cory.ok said:
kitler53 said:

hm....  hello?

err..okay, my post posted as a blank.  anyhoo, ...

i'd wager that the amount of processing needed will depend on the game; tracking one player or two, tracking just the head or the entire body, ect.   either way 5-9% is a decent chuck of space especially if you want a really big or detailed game.

for reference, do we have any solid numbers on the amount of processing that move uses?

10% is kinda a lot... lol

anyways for move:  they said it takes one fraction of one spu (the ps3 has six spu's), and for reference, they said that most games never come close to using all six spu's.  it also takes 2 mb of ram to run move, 0.004%

It has 8 spus...


"  Yoshida: When we were developing Move, we really wanted it to be the second standard controller for PlayStation 3. One requirement we had for ourselves and the hardware guys was that Move shouldn’t take many resources from the hardware — CPU or memory usage.

The Move team asked our studio members how much memory and CPU we were willing to give them, and the team said, zero memory and zero CPU. You might know that Move uses a fraction of one SPU out of the six SPUs (on the Cell processor) that games can use. Even with four Move controllers at the same time, the use will never exceed one SPU. Most games on the PlayStation 3 have never used all the SPUs.  "

It's because he is only referring to what games are actually able to use.  The ps3 has a total of 8 spus, but one is reserved as a backup in case one of the other 7 fails, and one is dedicated solely to the operating system, leaving a total of 6 that can be used for games.  As you see in the article, he never says 6 spus that the ps3 has, he says that games can use.



Money can't buy happiness. Just video games, which make me happy.

10 % is alot considering alot of xbox games dont look that great anyways.  and for all of you guys suggesting it would be awesome because now halo can run using kinect.  thats never going to happen.  the one thing that everyone is ignoring for some reason is that you cant move your character with kinect..  almost every game your going to play is going to be on rails or casual games unless they come out with some sort of nav controlller and then that just takes away from there whole slogan "you are the controller"  I dont get how some people are taking this device seriously..



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Wasn't it not supposed to use cpu at all? I remember that being posted here before when it was leaked that they were taking out the onboard kinect processing.

Anyway, I was under the assumption that multitasking actually increased the amount of cpu being used by both programs and created memory bottlenecks, is that not true?



theprof00 said:

Wasn't it not supposed to use cpu at all? I remember that being posted here before when it was leaked that they were taking out the onboard kinect processing.

Anyway, I was under the assumption that multitasking actually increased the amount of cpu being used by both programs and created memory bottlenecks, is that not true?


Not sure about the multitasking thing, but it was originally stated that the Kinect would have a processor of its own.  Microsoft, however, later announced this would not be the case.  I would say the major reason for this is because if they would have had to put a processor in every single Kinect, it would be a minimum of $200 on store shelves, and while I cannot for the life of me believe that $149 is selling as much as it is in preorders already, I really don't think people would pay $199 for it.



Money can't buy happiness. Just video games, which make me happy.