I am procuring a server for an application and am looking at the possibility of reducing core count to save on exorbitant SQL licenses. The server architect specifies 2 x quad core 5620 @ 2.4Ghz, or 2 x 6-core Intel E5-2630 2.3 GHz Intel processors.
The server architect also indicates that; "If the overall processor clock speed (across all cores) in the substitute processor is the same or
higher than the overall processor clock speed across the required number of cores, then the
processor may be used. "
I am considering using a single 6 core E5-2643 @3.4Ghz. That would yield a 20.4Ghz overall clock speed compared to 19.2Ghz for the (discontinued) 5620 option.
Does anyone have a clear reason not to do this (ie any major performance issue dropping to a single processor?) If we do go with the 2 x E5-2630 option that will require an extra $10K in SQL licenses.
To put this in perspective this is a hardware + revision upgrade of a system that currently peaks @ 50% processor using an old quad core E5430 @ 2.66Ghz.
Thanks for your help!