FSB Scaling - The Athlon XP

The Athlon XP 3200+ is based on AMD's 0.13-micron Barton core (see our review for a full description of the Barton core) and runs at a clock speed of 2.20GHz. The first thing to keep in mind that at 2.20GHz the Athlon XP 3200+ still carries a lower clock speed than the short lived Thoroughbred-B based Athlon XP 2800+ (2.25GHz). Although the 3200+ only holds a 34MHz clock speed advantage over the 3000+, AMD has moved to a 200MHz DDR FSB for the chip (effectively 400MHz).

Alongside the chip, NVIDIA has revealed that they've been certifying the nForce2 chipsets for use with the faster FSB for quite some time and thus re-badged them as nForce2 Ultra 400 in order to indicate support for the FSB.

So how much of a boost do we see from increasing the FSB on the Barton core to 400MHz? First be sure to read our explanation of why a faster FSB results in better performance here, then take a look at the following tests:

The 400MHz FSB provides a 0 - 7% improvement in performance for the Athlon XP at 2.20GHz, with the average being a 3.2% increase. While we'd normally say that the benefits of a higher FSB frequency will best be realized as the processor reaches higher clock speeds, but with AMD keen on replacing the Athlon XP with the Athlon 64, we'd say the move to a 400MHz FSB wasn't absolutely necessary.

Index FSB Scaling - The Pentium 4
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  • Anonymous User - Sunday, July 20, 2003 - link

    There looks to be something fishy about this review anyway. The P4 1.6A is probably ahead of the 1600+ in most benchmarks. When those chips were new, the 1600+ looked very clearly faster. I'm not sure whether SSE2 has really made all that difference - the relative performances must have changed by about 10-20%.
  • Anonymous User - Friday, July 18, 2003 - link

    So P4 for multimedia and Athlon XP for general office, right? Since 95% of the systems I recommend or build rarely see streaming video or 3D, then AMD is the better value for me. I think Anand is undervaluing the Business Winstone 2002 results in the overall conclusion.
  • Anonymous User - Wednesday, July 16, 2003 - link

    I agree with #4. When it comes down to price VS performance AMD stomps on Pentium.
  • Anonymous User - Monday, July 14, 2003 - link

    This is the typical review that one might see from the Wall Street based analysts that know virtually nothing about Processor technology, and prefer to keep their heads stuck in the sand. The XP3200 was extremely competitive with the original (read NOT 800 FSB) Pentiums, which is all that AMD had to compare it with at the time of intro.

    It is interesting that Intel always seems to have the newest design "waiting in reserve" for when AMD presents its newest design. What would happen if AMD never introduced another new processor? Would that mean that the newest offering from Intel would never arrive on the marketplace? You can bet on it. Instead of using Intel-oriented benchmarks and downplaying the extraordinary lengths that AMD has gone to over the last 3-4 years, you should be realistic and point to the advantages that the mere presence of AMD has created for consumers.

    For the money, the AMD line is still the best value, and can equal the performance of the Pentium line is virtually all the everyday uses for a PC.

    Please try to keep some shred of perspective in the future. Thanks.
  • Anonymous User - Friday, July 11, 2003 - link

    you're an asshole, god damn. chill, the guy was being calm about it. you're the people in teh intarweb i avoid. thx.
  • Anonymous User - Thursday, July 10, 2003 - link

    From 1 Anonymous User to another, you are an idiot. PS2 as the best gaming platform? X-Box has better hardware in all respects, so as consoles go it is technically better. PS2 still has more games..and relating to sports that is where the console usually shines over the PC. But neither can do what a PC with proper hardware can do, in any aspect. So yes, the PC is the ultimate gaming platform, hence why both the PS2 and X-box are more like pc's than old consoles.

    Also this review had a benchmark on general use, including office, etc...and AMD won nicely, so if you read the whole article your complaint was solved before you made it. But most of us do play games, which is why most benchmarks are game related, non gamers usually don't go for top end, cause they don't need it. Hopefully you will post a better message next time or at least be more informed on the facts before dribbling false info.
  • Anonymous User - Sunday, July 6, 2003 - link

    What about Office application performance? I read that the Athlon still blows away the P4 in most everything but games. Most of us spend our PC time doing other things besides gaming. If we wanted the best gaming platform, we'd buy Playtstation 2's.

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