the game console is designed just for that.. games dont try and wonder why it is.. becuase thats just how it is.. your pc is doing a lot of other stuff besides running the game.. and the games are coded to be ran under many differnt scenarios with the 360 and ps3 its ment to do 1 thing and 1 thing.. hd gaming
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Actually, that's a big limitation for the consoles. Less RAM is always bad, and consoles are always constrained in their RAM. Streaming off a disc is possible in PCs too, but it's not done because it sucks; physical I/O is the worst bottleneck in a system, and optical I/O is waaaaaaaayyyy worse than hard disk I/O. Console game designers often have to come up with complex swapping algorithms to keep the right assets in memory at the right time; which, while it demonstrates their l33t coding skillz admirably, they would likely trade in a minute for the ability to just "load the whole level" into RAM and forget about it.
Originally Posted by tubnotub1 Second, you dont really have ram limitations on a console, as the game is read dynamically from a disk. |
Good point Vulcan, thats something I never thought about, thanks for correcting me. I would give you a rep but your a Mod.
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Close, it has 64 four way SIMD drivers totaling 256 shaders.
Originally Posted by tubnotub1 I think it has 64 unified shaders. |
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Um Xbox 360 GPU < 7800GTX. Not an ATI chip
Originally Posted by tubnotub1 Well, first, you dont have the overhead of an OS taking up system resources. Second, you dont really have ram limitations on a console, as the game is read dynamically from a disk. There are other things to consider also, for example, xbox360 games only run at 2-4x AA, where as pc games can run upwards of 16qAA and 16AF. Lastly, the drivers for pc's are always changing and are made so that a wide variety of systems can support them, where as the console has the advantage of only needing "drivers" for a single setup, as such, they can be optimized much more then PC drivers. Lastly, the 360 graphics chip is no slouch, it is actually based on R600 and utilizes the unified shader architecture... I think it has 64 unified shaders. |
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Thats why the ps3 with it 256 megs of ram, has a hard time at 1080 resolutions.
if the 360 had a gig of ram, that would really solve a lot of hassle for them.
EDIT: the edRam is what wins the money too. HDR+4xAA with maybe 5% performance loss. Also i believe is CSAA, as the r600 is going to utilize CSAA.
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Wrong the 360's GPU is an ATI Xenos, which is pre r600. It has 10Mb of edRam for seperate processing of AA and AF. Which is why the 360's GPU is so powerful.
sorry for the numerous double post but i was wrong about the 64 shaders. its actually 16 shaders organized on die per three SIMD untits. 3x16=48 and they do 4 ops per cycle. So thats 48x4 which is 192 shaders ops per cycle.
Originally Posted by VulcanDragon Actually, that's a big limitation for the consoles. Less RAM is always bad, and consoles are always constrained in their RAM. Streaming off a disc is possible in PCs too, but it's not done because it sucks; physical I/O is the worst bottleneck in a system, and optical I/O is waaaaaaaayyyy worse than hard disk I/O. Console game designers often have to come up with complex swapping algorithms to keep the right assets in memory at the right time; which, while it demonstrates their l33t coding skillz admirably, they would likely trade in a minute for the ability to just "load the whole level" into RAM and forget about it. |
if the 360 had a gig of ram, that would really solve a lot of hassle for them.
EDIT: the edRam is what wins the money too. HDR+4xAA with maybe 5% performance loss. Also i believe is CSAA, as the r600 is going to utilize CSAA.
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Originally Posted by reberto Um Xbox 360 GPU < 7800GTX. Not an ATI chip |
sorry for the numerous double post but i was wrong about the 64 shaders. its actually 16 shaders organized on die per three SIMD untits. 3x16=48 and they do 4 ops per cycle. So thats 48x4 which is 192 shaders ops per cycle.
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From what I understand, and what has been stated, the 360 chip uses the unified shader architecture, and is indeed made by ATI. With 48 unified shaders it is most definitely better then the 7800 GTX.
Originally Posted by reberto Um Xbox 360 GPU < 7800GTX. Not an ATI chip |
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