Xbox 360 floating point performance: 1052 GFLOPs

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Guest

this is how it is broken down in Xbox 360 -

IBM PowerPC triple-core 'Xenon' CPU:
115 Gflops

ATI 'Xenos' graphics processor:
240 Gflops (programmable) + 697 Gflops (non-programmable)

total: 1052 Gflops (slightly more than 1 Teraflop )



is Xbox 360 as powerful as a 1 TFLOP Supercomputer ? no bloody way in hell.

a 1 TFLOP supercomputer has all of that computer power from general purpose
CPUs, plus the memory and memory-architecture to support that. Xbox 360
has roughly 1/10th of a Teraflop (115 Gflops) from its CPU, and that is only
peak theoretical single precision flops. the rest of the flops performance
in Xbox 360 is in its ATI GPU, and most of that is put into hardwired
GPU-functions, only about 240 Gflops is accessible to the programmer for
whatever graphics work he wants to program.


as for the Playstation3, Sony and Nvidia claim 2.18 Teraflops. well like
Xbox 360, the PS3 gets most of its flops performance from the GPU. in PS3's
case, that's 1.8 Tflops. the Cell CPU only has 218 Gflops, less than
twice as much as Xbox 360 CPU (115 Gflops).

so neither Xbox 360 nor PS3 are true Teraflop machines, as far as real
CPU-based flops performance is concerned, which REAL supercomputers have.
 
In uk.games.video.xbox Remo Shiva said:
hmmmm, very intresting.

didn't understand a word of it :-)
Click to expand...

Ah, that's not your fault though. It's because it's meaningless babble.

Choobs
 
Ah, that's not your fault though. It's because it's meaningless babble.
Click to expand...

Its useful if you write software that does

ld a,0
jp -1

Then load 2 copies into each core.

Oh and don't forget a bit of graphics microcode too.

You can really push the performance envelope then.

Starts to tail off if you have to perform useful tasks such as load data
from disk or access memory.
 
so neither Xbox 360 nor PS3 are true Teraflop machines, as far as real
CPU-based flops performance is concerned, which REAL supercomputers have.
Click to expand...

Thankgod for that, teraflops used to scare me as a kid, if its not
those damn exploding cubes its that evil zelda woman and her freak
family!! -phews-
 
hmmmm, very intresting.

didn't understand a word of it :-)
Click to expand...

English translation:

Hey, look. Microsoft are using meaningless statistics as a marketing tool.

Wow, and so are Sony.

In other news, pigs found not to fly.
--
 
Skijumptoes said:
Thankgod for that, teraflops used to scare me as a kid, if its not
those damn exploding cubes its that evil zelda woman and her freak
family!! -phews-
Click to expand...

Phew is not a verb. :)
 
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