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Xoj on 07 August 2009
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Mvp4eVa said:
numonex said:
The PS3 is marginally better in terms of graphics due to having three times as many 3.2GHz processors (9) as the XBox 360 (3). In terms of overall game performance and frame rates the games are equal or marginally better on the XBox 360 due to DVD drive reading game discs faster than the PS3s Blu-Ray players. Mandatory game installations are required for most PS3 games due to slow reading of the Blu-Ray player in the PS3. Game installations are not required for the XBox 360 DVD game discs.
*The PS3 exclusive games are marginally better than XBox 360 exclusive games in terms of graphics.
**The multi-platform games PS3 and XBox 360 are equal or considered marginally better on the XBox 360.

Why people say SPEs are cores?  they are like cores in a way but still they are not..  and is not 9 is 8 SPEs, One is dissable, one is for the OS and 6 for programming games..

Xbox 360 has a 3.2ghz 3 core processor..

The Cell is a 3.2ghz single core processor with 8 SPEs (theorically cores), when only 6 SPEs is being use for gaming..

okay i will try to simplify it.

360 3 cores, it have 1mb cache shared between 3 cores (1mb/3), that and can also be thread into (6) 1.6ghz threads the gpu does most of the graphics job using xbox directx which its a console version of it direct x 9 version C.

ps3 have 1 PPE which is practically the core 360 cpu is based of, the ppe have but with 512kb all for itself. that can be threaded

into 2 1.6ghz threads.

then u have 7 SPU with 256kb l2 clocked 3.2ghz, the thing it's it can't be accessed directly  and have to be sync with PPE, it really small footprint to sync on killzone 2 dev walkthought showed only 2-4% of cpu use. they excel at parallelism.

something engines like the cry engine 2-3 use to make it graphics.

you have 8 threads for use for gaming, since the OS footprint have gotten smaller and the (9) SPE doing all the job.

most games use PPE and maybe 1-2 SPU especially ports for things like AI and physics, and use the RSX for everything.

but then if people moved some things like spu the RSX could focus on things it does best like HDR, textures, graphics in general.

thats only 6 SPE could make worlds difference if was actually use, but only uncharted have gotten a proper use of them... and there is still room for improvement.