Actually, it would be prudent (not daft) for Sony to put a 1:8 (eg. 1:8 implying the 250mm2 IC) Cell IC in their CE products. As a semiconductor manufacturer, they pay per SOI wafer for their ICs, not per yieldable IC as you can do with some foundries (like IBM did).Shifty Geezer said:You're forgetting Cell's scalability. Sony would be daft to put a 1:8 BE into a TV, but they can use a 1:1 Cell chip, and print them off at 3x the density of the BE at 1/3rd the price.
With this in mind, they need to produce N quantity of ASICs for PlayStation3 -- they must output N 7:1 capable Cell's per wafer. Cell is a larger chip, over 50% of it's surface is composed of redundant structures. Crank through the probability and it's favorable (eg. off the top of my head... ) that there will be some sort of characteristic size distribution applicable to errors per die, perhaps a power-law distribution.
As a corollary to the above, it's obvious that the more products they can use Cell in, the more diluted the fixed costs become. As stated, if it's some sort of power-law distribution, they will have many more yieldable ICs (eg. those without fatal errors) that have 1 working SPE than 2, and much, much more that have 2 working than 7.
So, the costs are already on Sony's balance sheet due to PlayStation3. It's in their best interest to stick a 1:8 Cell into everything they can. But, while it is a super-linear increase in yield as you decrease die size, you then have to incurr costs to redesign the entire back-end of the IC and you have recurrent costs in both having divergent manufacturing lines as well as the opportunity costs that's lost. Just sell the ones with 8 working SPEs for servers at immense mark-up, the 7 working ones go to PS3. The 6 working ones are CMPed into Home Servers or HDTVs, etc.
It has occurred to me that my Linksys router is nothing but a MIPS computer and as such is basically future-proof when to comes to computing the closed-set of functions possible under the 802.11g standards and the hardwired functions.
Using the same paradigm, I'd love to see Sony put Cell into their ES series receivers; a Cell with 2 or 4 SPEs can easily decode any audio standard that's physically feasible. Put an Gigabit Ethernet port on it and do the same with their Blu-Ray recorders, HDTVs, DVRs, etc.
Last edited by a moderator: