Back in October of we outlined Intel's FSB targets for the major core releases of the coming years:. Intel's Northwood 0. Things have obviously changed since we made that statement, primarily that Tejas has since been canceled and Intel introduced an Extreme Edition of the Pentium 4 based on the Gallatin Xeon core. Given the revised plans, what do present day roadmaps say about Intel's FSB targets for the future?
Current Intel roadmaps show absolutely no support for the MHz FSB from any processor other than the two aforementioned Extreme Edition chips until the end of next year, when Prescott-2M chips will finally receive MHz FSB support; there are also plans for dual core MHz FSB chips although they have not been publicly outlined on any roadmap.
It seems as if Intel isn't interested in releasing a new revision of their mainstream chipsets and wants to thus save the move for Prescott to for their upcoming Lakeport chipset. What that means is that today we are seeing a very limited launch of a new FSB as a feature exclusive to the Extreme Edition CPUs, no doubt a way of adding more value to the very expensive Extreme Edition offering. However it seems that Intel paired the faster FSB with the worst possible choice out of their processor line; armed with an on-die 2MB L3 cache, the Pentium 4 Extreme Edition already has the lowest latency memory accesses out of the entire Pentium 4 line, thus softening the impact of the synchronous MHz FSB.
The other thing to keep in mind is that faster FSB frequencies truly become beneficial as higher CPU speeds cause the bus to saturate with data requests and transfers - strike 2 against Intel's choice of introducing the FSB with the Extreme Edition. While some have speculated that Prescott isn't yielding well at the MHz FSB, it would seem that the reasons for not moving Prescott to MHz are much more marketing related. The current and X chipsets are not selling well at all and the thought of replacing both of those chipsets with new, MHz FSB versions especially the high quantity mainstream chipset , so that Intel could migrate the entire Prescott line to the MHz FSB wouldn't go over very well with the motherboard manufacturers.
Product Collection. Code Name. Products formerly Prescott. Vertical Segment. Launch Date. Performance Specifications. Total Cores. Processor Base Frequency. Bus Speed. FSB Parity. VID Voltage Range. Supplemental Information.
Embedded Options Available. View now. Products formerly Northwood. Vertical Segment. Performance Specifications. Total Cores. Processor Base Frequency. Bus Speed. VID Voltage Range. Supplemental Information. Embedded Options Available. Package Specifications.
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