Montecito
The step evolutionary more attended for i processori Itanium 2 MP for the serveur systems multiprocessore products give Intel it is sure Montecito in how much it will be before Itanium 2 .
Index |
A long announced processore
It had to arrive on the market towards the end of after others vary due dismissals also to the change of architecture in development course, with spread in volumes in the first trimester of , but Intel has announced that Montecito will not arrive before the second half of therefore nearly an other year of delay, because of some issues better not specified R-with regard to the quality of the production. Unfortunately these problems will influence also some intrinsic characteristics of the plan that will be presumablly more conservativo than how much originally announced.
Technical characteristics
The change of architecture in work course
To the beginning in fact, it was previewed that Montecito was single Core, then after several the problems it meets you from Intel with the abrupt one stop to the "race to the begun GHz" with , the planners have decided to anticipate the release in all the fields of market of processori dual Core, a solution that, above all in serveur within, allows to increase radically the power elaborative without to increase and therefore without having to search architetturali solutions and more and more sophisticated members in order to resist such frequencies. Without to count that , from years present in the serveur field for means of the systems multiprocessore it is sure the method more efficient, and more effective, in order to increase the performances of the systems.
Pack-saddles to think that using the tool Linpack for the analysis of the power of elaboration in mobile virgola (floating point), a system to 4 processori Itanium 2 Montecito, everyone of which therefore, with architecture dual Core, for a total of 8 Core logical physicists and the 16 Cores taking advantage of the technology Hyper-Threading, he has been able to make to record a value of 45 , therefore 45 billions of operations in mobile virgola executed to the second. For comparison, in a system to processori Itanium 2 arrived to 11,43 Gflops and a later year 22,7 Intel Gflops arrived to.
Parallelism will allow to the sviluppatori of chip a speed increment until 10 times between and . Always according to Intel, Montecito will bring a 60% in more than performance regarding the previous systems to four ways; the using platforms Montecito would have to carry the double quantity of the performances, until three times the passing band of the system and to beyond the two and half cache implementabile on-die regarding the generation current of processori Itanium. Us moreover 20% in less attend in the detailed lists than feeding thanks to the new technologies for the saving of the consumptions.
Production process
BUS that MHz had to arrive to 667, like in the last evolution of Core Madison-9M, its puts into effect them predecessore in the line of the Itanium 2 MP, will be instead, at least initially to 533 MHz for the same motrivi that have carried to the last one postpone of the escape on the market. The constructive process will be instead that one announced sin from endured that is, for before the time in this line of processori, to 90 nm. it will bei8870, known also like Bayshore that it supplies support to the memories , , and 667 BUSES to MHz for eventual future versions in degree, perhaps, to resist such frequencies.
Implemented technologies
The range model top, beyond grazing the historical threshold of the 2 GHz, will have one L3 very 24 MB, one enormous amount never seen on a processore, than door the "transistor count" to graze the 2 billions; cache the L2, instead is equal to 1 MB for all the models. To this it is from adding also the support to the virtualizzazione technology that it consists in the ability to a system to execute at the same time different arrange operated to you, and Pellston for the correction of the errors in the cache. All characteristics that Montecito shares with its successor . The technology Foxton instead, that MHz concurs with the CPU Itanium 2 to dynamically increase to the own frequency of job of the processore of 200 in case the thermal envelope, that is the coupling between watt dissipates to you and operating temperature of the processore, is still to the inside of the fixed limits of default from Intel, will not come implemented in the first Montecito, although long announced and "sbandierata" from part of Intel. Probably the problems of productive yield do not concur this "overclock dynamic". Other technologies of energetic saving will allow also to reduce the clock so as to to carry the medium consumption of a processore Itanium 2 from W to approximately 100 puts into effect them 130 W.
The models originally announce to you
Montecito will be also first Itanium 2 to adopt the by now famous one Processor number, already used from Intel for the processori of the Pentium line (, , ) and . The models that were previewed to the launch and announce to you from Intel to first of they were following:
- Itanium 2 MP 9040 - clock of 1,8 GHz, 18 MB of cache L3, 533 BUSES to 400 and MHz
- Itanium 2 MP 9020 - clock of 1,4 GHz, 18 MB of cache L3, 533 BUSES to 400 and MHz
Model 9018 will be to low voltage:
- Itanium 2 MP 9018 - clock of 1,2 GHz, 12 MB of cache L3, 400 BUSES to MHz, will be LV (Low Voltage)
Model 9010 instead, will be single Core:
- Itanium 2 MP 9010 - clock of 1,6 GHz, 6 MB of cache L3, 533 BUSES to 400 and MHz, Single Core
Subsequently, probably in the first trimester , the following models will arrive:
- Itanium 2 MP 9055 - clock of 1,8 GHz, 24 MB of cache L3, 667 BUSES to MHz
- Itanium 2 MP 9041 - clock of 1,8 GHz, 18 MB of cache L3, 667 BUSES to MHz
- Itanium 2 MP 9031 - clock of 1,7 GHz, 8 MB of cache L3, 667 BUSES to MHz
- Itanium 2 MP 9030 - clock of 1,7 GHz, 8 MB of cache L3, 533 BUSES to MHz
- Itanium 2 MP 9021 - clock of 1,4 GHz, 18 MB of cache L3, 667 BUSES to MHz
Also model 9011, like predecessore 9010 instead, will be single Core:
- Itanium 2 MP 9011 - clock of 1,6 GHz, 6 MB of cache L3, 667 BUSES to MHz, Single Core
The models attended on the market
To this point it is difficult to preview which of the cited models over will catch up the market effectively, sure the detailed lists of the first versions of Montecito will be conservative than how much originally announced with the possibility, perhaps, to implement the characteristics previewed in according to time in case a production process and the small reviews of Core the consentissero ones.
Plans derive to you
From the design of Montecito it will come gained also , thought in order to go to replace in systems DP to 2 ways.
The successor
The successor of Montecito will be an other CPU dual constructed Core but to 65 nm. The other architetturali innovationes are not still of all notes but it is believed that they would not have to differ in radical way from those of montecito.
