Why are the equivalent of Sandy Bridge Servers-E Xeon slow to get out? Here are some ...
There a few days of this, we offered you the test of Intel Sandy Bridge-E. A total of eight cores "hyperthreading", so 16 rows of parallel processing, coupled with 20 MB of L3 cache, supported by four-channel DDR3 and two QPI channel for communication between processors, managing forty lines PCI Express version 3.0 more DMI2 embedded controller to manage the input / output. Impressive. Some will say that the Westmere-EX are more powerful. Yes, but the TDP emerged and consumption is not the same on this new generation of processors.
By cons, we do not always get these super processors for processing units in the drawers of Rue-Montgallet. The founder says they have some problems, especially on the new chipset Patsburg, the virtualization engine and the management of ports SAS, the world wide standard servers. But if the latter tests are successful, the next batch (C2 Stepping) should be available in February 2012, without elaborating.
Another major issue on which Intel has floored, the consumption of the devices associated with the processor, such as cache controllers or I / O or memory controller is now integrated into the processor. All this requires a lot of juice, for this reason also that the version "Desktop" has only six instead of eight cores, for example. It is therefore understandable that the frequencies of some processors are scaled down to meet the specifications for the TDP announced.
But the technical improvements of these new architectures can improve performance against previous generations. To correct this, it is expected that in the middle of the second quarter of 2012, a new revision (D-Stepping) will be released. When the chipset Patsburg finalized, version 3.0 of the PCI-Express has erased the problem of backward compatibility and then the frequencies of the processors may be revised upwards.
This architecture finally coming of age for PC and for the Pro, Ivy Bridge will arrive shortly after, in 2013, although it is rumored that they could get to the end of 2012 ...
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