Real Xbox Next Specs Leaked?

maaaaac writes "Looks like Xbox-Scene might have been sent a copy of the alleged specs for Xenon, aka Xbox Next [Spong.com has a slightly longer version of the document, apparently from Microsoft's Xbox Advanced Technology Group.] Interesting tidbits -- CPU: A 3-core (on one die) 3.5+ GHz IBM PowerPC processor w/SMT and 1MB L2 (accessible by the GPU, no less); GPU: 500+ MHz DirectX 9.0+ part from ATI, 96 shader ops per clock cycle, 4+ gigapixels/sec, 500+ million triangles/sec, 10MB EDRAM; RAM: 256+ MB of unified memory with 22.4+ GB/sec bandwidth (EDRAM has 32 GB/sec); Misc: all audio done on the CPU, 10/100 Ethernet (no wireless?), USB 2.0, VGA out (!), 12x DVD, undecided on HD but definitely as an option, at least, and what I think is one of the better improvements, 'The Xenon console will be smaller than the Xbox console.'"

Comments

Correct me if I'm wrong but...

[OverDrive33]

"The Xenon GPU is a custom 500+ MHz graphics processor from ATI. ... Xenon not only supports high-level shading language (HLSL) model 3.0 for vertex and pixel shaders but also includes advanced shader features well beyond model 3.0."

ATI doesn't have (true) Pixel Shader 3.0 development done yet... (if they did I'm sure there'd be an X800 XT Turbo or something) let alone implemented into a processor, even more ridiculous is the "shader features well beyond model 3.0".

Another thing is the technical limitations on have 3 CPUs and 1 GPU sharing the same L2 cache, while technically feasible, it's not a good idea, the bandwidth of the L2 cache would be severely taxed. It would make much more sense to have the smaller L2 cache for each processor. (Even this "locking down into segments" doesn't improve bandwidth...)

a 3 core processor each running at 3.5Ghz is pretty unlikely on a PowerPC based technology... 2.0Ghz probably... 3.0Ghz maybe. And a dual core probably not. But a 3 core... come on...

My money is on some lonely XBox fanboy made it up.

All PowerPC chips are NOT created equal

[sam_van]

I'm seeing a lot of incredulous posts regarding the ability of Microsoft/IBM's ability to put three cores on a die, etc. feasibly for power and/or cost reasons. However, IBM develops a number of lines of PowerPC family processors, not just those for Apple and RS-6000 workstations. My understanding is that these cores are some sort of hybrid between 4xx and 7xx (G) series processor cores. The 4xx cores are low power devices (with set-top box, printer, router applications) and are already in multi-core chips. I imagine that with a stripped down 7xx core and some of the low power features, the brains of Xenon will not melt the unit or break the banks of those poor, struggling artists at Microsoft.