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Intel 800 MHz FSB Processor Family Review

David writes "Techware Labs recently had the opportunity to spend some time with Intel's new 800 MHz front-side bus (FSB) processor family. The review includes a overview of the features in this processor family, Intel's new Springdale and Canterwood chipsets, and an analysis of processor scaling within this family. The article focuses on how the relationship between CPU and video card affect various aspects of performance."

11 of 137 comments (clear)

  1. Re:too much power != good by Anonymous Coward · · Score: 2, Insightful

    The more powerful the chips intel pushes the less effcient the coder becomes, i remember when i used to tweak my programs so they would run optimally on a slower machines

    Yeah, I said that too when the PII came out. Sure there is always going to be bloat in code, especially in large projects. But you are more than welcome to go to ebay and get an 8088 or an Apple II and enjoy a machine that fits your computing needs (floppy drive or tape drive your pick).

    Me, I would like to have a computer fast enough to do things like audio/video editing, real time ogg encoding, or whatever. I surely would not mind buying a computer today thats 4x faster than these new P4s for about $1000. I'd find a need for it or enjoy the lack of bloat feeling, who cares?

    Although I have had 0 formal training in programming, one thing I've read and have incorporated into my coding is early optimization == bad. 1st write good code, then find out where the bottlenecks are (if any) and then optimize those bottlenecks. There are even great profiling tools out there to help you do these things.

  2. No Athlon XP benchmarks? by Alereon · · Score: 3, Insightful

    What good is benchmarking the new P4-C processors without comparing them to Athlon XPs, or even older P4s? Really, you can just multiply the performance of a P4-C 3.0Ghz by 0.8 to get a guesstimate of the performance differences within the family; what really matters is how they perform in comparison with the competition.

  3. um what?! by NedTheNerd · · Score: 1, Insightful
    im probably not the first one to mention this but this review sucks. They didnt test anything but other 800 buss processors nor any AMD processors. I used to think the point of a review was to see how something performed against everyone else not against itself . . . Not to mention they didn't even overclock the codamn things. Now I know some people out there are bitching oh but who wants to see it overclocked, overclocking makes things unstable (if you dont run mprime ;). Now I realize that point but then you think about it again and realize the only thing they test is GAMES!

    In all my rantings I hardly mentioned the FSB issue when did buss speed become more important than processor speed? but maybe thats just intels way of taking the light off of the idea that they are having a little trouble pushing thier chips faster, and thats to be expected when you cant make it faster make it better. too bad all FSB gets you is 5 FPS in your precious GAMES (yea I play em too!).

    oh well I guess I am just too demanding . . .

    1. Re:um what?! by kramer2718 · · Score: 2, Insightful

      Bus Speed IS more important than processor speed. The bus is what keeps the CPU supplied with data from the memory. If you have a very slow bus it doesn't matter how fast your CPU is, it will have to wait on memory accesses.

      Smart caching can keep values in the cache that will be accessed frequently and smart compiling can execute the code in an efficient sequence (so that a lot of memory accesses can be done at once), but even still the gap between bus/memory performance and CPU performance 200/400/800 MHz vs 1/2/3 GHz is so great that this still slows down execution quite a bit.

  4. Comparison ? by Elie+De+Brauwer · · Score: 2, Insightful

    What is really missing in the article is the comparision betwoon other cpu's running at 533 and/or 400 MHz. How can one interprete the benchmark results if there is no comparison to another product ? It's like saying that something is 600.1 gigaquats without defining a gigaquat.

  5. Re:too much power != good by Tancred · · Score: 2, Insightful

    Some people need all the processing they can get. It's allowing some of us to do things we couldn't before. If you don't need it, don't buy it. And you can always stop buying bloatware and write your own software or optimize your favorite OS program.

  6. Re:dualies by bloosqr · · Score: 3, Insightful

    Ahh the 266*2 was wishful thinking :). You are right about its 133*4, apologies about that.

    My understanding is that xeon mp line is for their
    4-way based motherboards. The main advantage is they have a meg of cache on them. But the normal processorshave 512k the same as the new p4's I believe.

    The xeon mp motherboards are $2k and the processors are about $2k each (pricewatch 1.6ghz/1meg cache i.e made of gold :)

    In any case the normal xeon dual systems are actually not that much more than buying a 875pe
    motherboard and processor. Btw here is the road map I found on the inquirer. Apparantly the xeon mp's are going up to 2.8ghz/2 megs of cache and the normal xeons are going up to 3.06/1 meg of cache and selling for $700.

    Here's the weird part, while it looks like intel skipped 667 fbs for the PIV line, the xeon line will "ramp up" to 667 early next year.

    In anycase I'm probably going to build a "normal" xeon/iwill running at ~2.66 which comes out to really not much more than a normal PIV/865/875 series. The selling of 800mhz memory/bus speeds on the PIV line while keeping the xeon line at 533/667 makes no sense to me. I was going to wait until a new set of mbs/chipset came out for the xeons but it doesn't look it will happen.

    -bloo

  7. Intel Won't Upgrade Xeon FSB by Hiro2k · · Score: 2, Insightful
    Anandtech

    Read the article at anadtech. It's the roadmap for Intel. And discusion of all the processor currently in the market. They Discuss why the Xeon isn't getting the nice FSB upgrade even though they need it the most.

    From a performance standpoint, things make even less sense once we start looking at Intel's plans for the Xeon MP line for 4-way configurations. Intel's Xeon MPs will continue to use a 400MHz FSB through the first half of 2004, even as the processors reach speeds as high as 2.60GHz. Intel's reasoning behind this is mostly to allow for a single upgrade path without forcing enterprise customers to upgrade their motherboards as frequently as we have to on the desktop side, but it's clear that the performance of the processors will be limited by FSB bandwidth. Remember that Intel's MP solutions rely on a shared bus protocol, meaning that in a 4-way Xeon MP server all four processors must share the same 400MHz FSB. This essentially quadruples the FSB bandwidth requirements of the server, and the Xeon MP happens to be the processor that will have the least amount of FSB bandwidth out of all of Intel's enterprise CPUs.
  8. Re:dualies by akuma(x86) · · Score: 2, Insightful

    Multiprocessor bus speeds and CPU frequencies always lag behind uniprocessor systems. It takes much longer to validate multiprocessor boards when compared to a uniprocessor system. This is because the number of things that can go wrong goes up exponentially with the number of CPUs on the board. The typical customers of multiprocessor systems value this sort of reliability even more than performance.

  9. Re:Spending some time with .... by crisco · · Score: 2, Insightful
    Heaven forbid they benchmark the CPUs against earlier P4s at the same clockspeeds. Or compare different memory technologies / mboard chipsets.

    Pages and pages of pretty graphs and charts all to tell us that yes, higher clock speeds mean higher performance.

    --

    Bleh!

  10. Re:The real question is... by drsmithy · · Score: 2, Insightful
    I'm a bit concerned with Intel opting (again!) for overclocking hardware, rather than improving it.

    This word, "overclocking", I do no believe it means what you think it means.

    That was a raw 50MHz chip, no overclocking, that outperformed the 486DX-66 with ease.

    Hate to break the news to you, but pretty much every CPU in use today uses exactly the same asymmetrical bus/CPU that the 486 DX2s did, that you are calling "overclocking".

    Oh, and a DX/50 would only outperform a DX2/66 in tasks that were bus-bound. If the bus wasn't a limiting factor, the higher clocked CPU would be faster.

    The supporting hardware was too expensive, and Intel never bothered working on making it cheaper.

    Yes, they did - it's just that by that time (ca. second generation Pentium CPU - P90, P100, P100 and P133) the 486 was obselete.

    This is a tougher fight, and it's one Intel is losing, every time someone produces a faster processor or chipset. (Or even just a more reliable one.)

    I've yet to see any manufacturer produce a more reliable chipset than Intel. Even the ones that are faster only tend to be so because they lobbed into the middle of an Intel release cycle and aren't outperformed until the next model (in general).