[R] choosing of CPU's to run R

Dear All, I am considering to buy a workstation. For the CPUs, I wonder whether anybody have the experience in choosing one for the R. Intel Xeon W3540 2.93 8MB/1066 QC CPU is much cheaper as compared with the Intel Xeon E5540 2.53 8MB/1066 QC CPU. However, its Hz 2.93 is bigger than 2.53. I

Re: [R] choosing of CPU's to run R

Dear Huang, I do not know how either of these run R in particular. However, the price difference is because the E5540 is a newer line of chip architecture than the W3540. One of the differences is the speed that data can be transferred to and from the chip (Intel now calls it the QPI, it used

Re: [R] choosing of CPU's to run R

Thanks, Joshua. It's quite helpful. Hope someone can give some idea whether the Hz or the QPI is relatively important in computing. Huang On Thu, Aug 27, 2009 at 4:41 PM, Joshua Wiley jwiley.ps...@gmail.comwrote: Dear Huang, I do not know how either of these run R in particular. However,

Re: [R] choosing of CPU's to run R

My guess is that there is not a simple answer. My newest machines are extremely fast at doing: sum(rnorm(1e6)) relative to my older machines. But they are not so much faster at doing the work that I actually want done. But if there is a simple answer, I'd be keen to hear it. Patrick Burns

Re: [R] choosing of CPU's to run R

Patrick Burns wrote: My newest machines are extremely fast at doing: sum(rnorm(1e6)) relative to my older machines. But they are not so much faster at doing the work that I actually want done. ...like finishing your next book and that sort of stuff? ;-) -- O__ Peter Dalgaard