"EM64T, Extended Memory 64 Technology, is Intel's implementation of the AMD64 ISA in the Nocona Xeon and enabled Pentium 4 desktop processors, both of which are based on Prescott, Intel's newest 90nm process technology.
It's almost exactly comparable to AMD's implementation in their own processors, bar one or two differences, one major one happening to be the amount of physical memory the processor is able to address. AMD gave Opteron and all their other first-generation AMD64 implementations the ability to address 40 bits of physical memory (1024GB on any connected memory controller, wherever that resides), putting that information and the CPUID data needed to report it to the operating system in their documentation for the new ISA.
With Intel seemingly engineering their EM64T implementation from published AMD documentation on AMD64, they've programmed the new EM64T CPUs to return a supporting PA size of 40 bits to the operating system, while the CPUs themselves are only capable of addressing the same 36 bits of physical memory that all Intel CPUs have for the past few years, via the Physical Address Extention mechanism. Whoops."
Originally posted by RazorBlue - Dan Shall we create an AMD forum for you?
I think so, and hardly any of this is relevant to dedicated servers anyways. It's ok to debate if a xeon or opteron is better for whatever your dedicated server will be doing but we don't need a post for every bit of AMD news.
Do you know about anyting other than the latest Gen of Xeon's and AMD chips?
How about like, "I want to start a webhosting biz with dual opterons, How do I become a big player so I can make money and actually use my equipment?"
or "How do I secure my webserver?" or "How do I add virtual ips?" Don't you have any diversity in the tech field?
Or since you're into benchmarking, create a suite of tests for people to try across their system. Gather the data put it into an excel file and release it to the public. Don't use these garbage Axis benchmarks or anything.
Load the binaries on to your server and serve them... Do something other than paste other people articles. You're horribly unoriginal and your metrics are crude at best.
Actual performance tests from people in the industry. You've already seen on the board that people have both systems and are used in real world environments and that they are willing to run the tests provided that
1.) everyone uses the same version of the test
2.) display system specs
3.) use a crude test to determine a baseline standard
4.) Run a series of test against common 'webhosting' applications.
He is a little overactive on his Intel protests but I think he posts valuable information. I have yet to see him be proved wrong in his findings that takes him hours of searching on the Internet. But a recommendation to you wm2100, half the people here are NOT your average American computer newbie. All of us know the capabilites of AMD and the limitations of Intel. No need to be an annoying cheerleader wm2100, and please limit your AMD fanclub posts.