Will the new chipsets increase the memory bandwidth? Right now the Mac Pro will do 21Gb/s but more cores will need more GB/s maybe 42Gb/s To really take advantage of large workloads you need more bandwidth to your memory once you increase the core counts. 21Gb/s is fine for 4 cores but at some point
Intel will need to work on the memory side of the house.
This is one of the things that made Crays so much powerful compared to PCs back then with measly memory bandwidth. I would laugh when people would say wow look my PII does 300mflops. And I would run the equivilant cray job on that PII and it would choke on the workload compared to the Cray EL.
I would have to say just recently last 1 1/2 years have PC's finally caught up to the memory performance of the supers of the mid 1980s and 90s.
ie: Mac Pro could do Cray C90 series workloads for example
Intel will need to work on the memory side of the house.
This is one of the things that made Crays so much powerful compared to PCs back then with measly memory bandwidth. I would laugh when people would say wow look my PII does 300mflops. And I would run the equivilant cray job on that PII and it would choke on the workload compared to the Cray EL.
I would have to say just recently last 1 1/2 years have PC's finally caught up to the memory performance of the supers of the mid 1980s and 90s.
ie: Mac Pro could do Cray C90 series workloads for example