sechs said:
Tannin said:
Intel's production engineers are the best in the world
I have to disagree. IBM's production engineers are the best in the world.
Unlike Intel, IBM not only makes in-house design chips, but is also a fab-for-hire. Using cutting-edge technology, and doing it well and in quantity *is* their job.
I would have to disagree with both of these statements--to a lesser or greater extent. Horses for courses as the saying goes.
Intel gets great speeds out of bulk Si, but for various reasons they are behind the curve in more advanced processes. Witness their transistion to Cu. They were a process generation behind AMD (180nm v 130nm), and when it first debuted--P
!!! Tualatin, it was leaky (idle current dissapation was 30% of total!). 90nm is leaky too. It
appears that 65nm may be much better--but that is two whole generations later. Notwithstanding, nobody is as aggressive (transistor size, speed) in bulk as Intel.
IBM have fantastic R&D. They really do have cutting edge processes--probably even better than Intel, but they simply cannot transfer this to bulk manufacturing. O.K. if you can justify unit costs of $1 000, but no good when your business model needs a unit cost of $20~30. Have a look at IBM's books, their semi-con manufacturing has yet to turn a profit. They lost the NVIDIA (5x00, 6x00??) series to TSMC because they could not generate the volume required. Apparently their yields (IIRC) were in the range of 8~12%. But AMD adopted the process for 90, 65 and 42nm so it can't be all bad. SOI is proving it's worth despite Intel nay saying it--just look at the power draw of A64 v Netburst. Sure the design plays into this a lot--in fact, at this end of the spectrum, you cannot seperate design and process, but SOI designs draw less power than bulk
AMD on the other hand have used their own process--250nm, Moto's, 180nm, 130nm and now IBM's 90, 65,42 nm. And they have managed to successfully transform IBM's lack lustre production methods into real commercial manufacturing. But AMD does not innovate--they haven't used an in-house process since 250nm.
As I said, horses for courses.