Wii broadway update
- Thread starter ninzel
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Megadrive1988
Veteran
hmmm
edit: ah here we go, this is more like it
http://today.reuters.com/news/artic...IDST_0_TECH-IBM-NINTENDO.XML&rpc=66&type=qcna
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Yes, the technology dubbed "90nm process with higher operating frequency" that boosts processing power by nearly 100% over existing GameCube CPU, while keeping the power usage low.
Wow! Never heard of that teachnology. Do you know if it will be available in enough time for the Wii launch or could we be looking at a delay for such cutting edge technology?
Yes, the technology dubbed "90nm process with higher operating frequency" that boosts processing power by nearly 100% over existing GameCube CPU, while keeping the power usage low.
Well, they had bolt on a power-save mode as well, as Wii supposed to be always powered-on , according to Nintendo.
Yes, the technology dubbed "90nm process with higher operating frequency" that boosts processing power by nearly 100% over existing GameCube CPU, while keeping the power usage low.
Since when does a 50% higher operating frequency boost processing power by nearly 100%?
rotfl
http://forum.teamxbox.com/showthread.php?t=468997
There is a video from IBM fabs doing the CPU.
Plus a nice theory (well if the chip is indeed 25mm^ at 90nm then it should have quite a few more tech wonder the wood, unless they go for 1Mg of L2 but then the CPU is like Gekko and what is the point of so much cache(?)).
There is a video from IBM fabs doing the CPU.
Plus a nice theory (well if the chip is indeed 25mm^ at 90nm then it should have quite a few more tech wonder the wood, unless they go for 1Mg of L2 but then the CPU is like Gekko and what is the point of so much cache(?)).
I believe gecko was a sub 5-watt processor, even at 700+ mhz, a similar processor idling would use even less. (but 5 watts always on would add up to more money over a year than a more powerful system only played some of the time)
Oh, Wii's processor also supports SOI technology. Considering how late it's being produced though, I think it's really disappointing that such a simple processor didn't make 65nm SOI.
Gecko has a 256KB L2 Cache
Broadway has 512KB L2Cahce
GX has 1mB of L2 Chache
The other minor note is that is that L1 cache of Broadway is equal to the L2 Cache of gecko. Hopefully Matt at Ign reveals some the other gecko tidbits, because at least one is a really big clue to nintendo's future and this cpu when you connect the dots.
That's pretty large L1 cache for what Broadway is.
Sorry, I think you're probably confused. Maybe you're thinking of the D-Cache size in Kbits. There's simply no way IBM would implement such a large L1 cache (larger than any other PPC out there) -- particularly given the dubious performance gains that would come from such a large and likely slow L1.
Well if it draws 20% less power, while "substantially boosting processing power", it'll obviously be more then 20% more "power efficient" than Gekko. Besides, they'll probably have the most brainiac cpu this gen, which, if your propa...aeh marketing department isn't all gung ho about silly spec wars, is a good thing, imho.
Gecko wasn't that brainy. Anyhow, at 700-800mhz, I doubt broadway is going to performance competitive in anything with xenon or cell. From what's been done on xbox 360 so far, I'd estimate each core to be about the performance of a 2ghz to 2.4ghz pentium 4 (or at least that's the currently realized performance, it could do better as games become better optimized) though I'm also assuming current games are only single threaded. Most people would probably consider that estimation on the low side though, but it's way beyond what a sub 1ghz g3 should be capable of.
With much higher code density and instruction decoding out of the critical path, much more sophisticated branch prediction & cache architecture & elaborate prefetching, a robust OOOE implementation and Integer ALUs at 4 and 4.8 GHz respectively, a single Xenon core would surpass it only on very,very biased workloads; but given a fair and representive set of real world problems and equally elaborate implementations on both architectures, the P4 would pull far ahead on average.
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