Linux and EM64T; Intel's 64-bit Suggestion
by Kristopher Kubicki on August 9, 2004 12:05 AM EST- Posted in
- Linux
Synthetic Benchmarks
Our Nocona server was setup in a remote location with little access, so we had limited time to run as many real world benchmarks as we are typically accustomed to. Fortunately, there are multitudes of synthetic benchmarks that we can use to deduce information quickly and constructively.Sieve of Atkin (primegen)
Primegen is an older, but still useful library for generating prime numbers in order using the Sieve of Atkin. We compiled the Bernstein implementation by simply running "make". We ran the program as so:# time ./primes 1 100000000000 > /dev/null
We found the benchmark to be extremely reliable and we replicated our figures continually with less than 1% difference.
Super Pi
We ran the Linux compilation of Super Pi 2.0, which is a closed source application. We are not aware of which optimizations are compiled with the program and we are prohibited from redistributing the binaries. Please download the latest binaries from ftp://pi.super-computing.org/Linux. We ran the command:# ./super_pi 20
Below is the program's output of calculation time in number of seconds.
After re-running the program several times, our benchmarks never deviated outside of 1%. In a mathematical operation-only situation, the Intel processor has outpaced the AMD offering twice now.
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T8000 - Monday, August 9, 2004 - link
I think it is justified to put the 3500+ in its place here. Either it is overrated or its 64 bit support is more of a marketing statement.For those wanting an 3800+ in the review, just add a little under 10% to the 3500+, since the 3800+ has about 10% more clockspeed and it usually scales close to that. Not that it would change that much, it would only make things worse for AMD fanboys, seeing the 3800+ unable to hold its own against a real 3.6 Ghz CPU.
Besides, you are welcome to try these tests at home with your FX53 or Opteron x50 and submit some scores. Don't have one? Don't worry, AMD hardly sells them anyway, especially to home users, since most users that can afford them do not buy AMD.
matman326 - Monday, August 9, 2004 - link
Very disappointing.... thats all i'm gonna say.wildguy2k - Monday, August 9, 2004 - link
"Even a intel fanyboy has to laugh at how off sided this failure of a "review" was.Come on anandtech, if we wanted to read stuff like this we go to tom's"
Exactly. Also, to all those who say that 200MHz & 512KB of cache don't really make much difference, there's an article on this same site that may point out the very difference they provide. Now, I know it's not utilizing the 64bit extensions, but this image
(http://images.anandtech.com/graphs/athlon%2064%203... DOES show a 10% difference between the FX-53 & the 3500+ while compiling...
rocketbuddha - Monday, August 9, 2004 - link
AlexWade - Monday, August 9, 2004 - link
Okay, deep breath ...Obviously, the Prescott does some nice math work. I'll keep that in mind. But, most of us, and I'll tend to believe most servers, don't crunch numbers all day. I wanted to see more benchmarks on stuff that is more likely to get done, not finding prime numbers. More encoding, more games, more SQL, more compiling, only one or two math benchmarks.
It is NOT a fair comparision of A64's weakness vs. Prescott's new strength on 60%+ benchmarks.
It is a fair comparision of CPU's. Although, not the best. The Opteron and Athlon64 come from the same mold. Variations aren't going to be that minor.
Please, next benchmark, make it more well-rounded. I could give a flip about Super Pi .
classy - Monday, August 9, 2004 - link
I see no basis at all for this article. If you only had benchmarks for the 3500+ you should have even written this article. In all the years on Anandtech, I don't ever recall an article as uninformative as this one. Its nice to see the Athlon win a couple of benchmarks, but this is a very needless comparison.Marlin1975 - Monday, August 9, 2004 - link
Even a intel fanyboy has to laugh at how off sided this failure of a "review" was.Come on anandtech, if we wanted to read stuff like this we go to tom's
Pollock - Monday, August 9, 2004 - link
I just want to throw my comment in here that I agree with most of the other people here. The conclusion is what I find most ridiculous."Without a doubt, the 3.6GHz Xeon trounces over the Athlon 64 in math-intensive benchmarks."
Like many other people said, I find that statement very unfair, again considering it wasn't against a similar chip.
bhtooefr - Monday, August 9, 2004 - link
OK, I posted that last comment in reply to one on the previous page, and didn't realize that some of the benchmarks were 32-bit ones, either by accident, or to make the AMD smearing more obvious...bhtooefr - Monday, August 9, 2004 - link
All of the benchmarks were 64-bit. They couldn't have thrown in a regular Xeon 3.6, because it wouldn't be able to run the OS or the benchmarking apps.They should be testing chips against others in their price range and PR rating range. So, here's what they should have tested (I noticed further down why they used the 3500+ ($346):
Pentium 4 560 EM64T (3.6GHz, $637)
Pentium 4 550 EM64T (3.4GHz, $417)
Pentium 4 540 EM64T (3.2GHz, $278)
I obtained these P4 prices from Intel's price list. While these prices are for the NON-EM64T chips, I read in a press release that Intel isn't charging any more for EM64T.
If they did it right, with the Xeon DP 3.6, here are the CPUs:
Xeon DP 3.6 EM64T ($851)
Opteron 250 ($851 - looks like it's aligned EXACTLY against the DP 3.6)