AMD Athlon 64 & Athlon 64 FX - It's Judgment Day
by Anand Lal Shimpi on September 23, 2003 1:25 PM EST- Posted in
- CPUs
Motherboard Support Powered by NVIDIA & VIA
Unlike the release of the original Athlon, AMD has full industry support behind the Athlon 64 (although the same can't be said for industry confidence). We have seen chipsets from ALi, NVIDIA, SiS and VIA, however only NVIDIA and VIA are dominating AMD's launch.
Our own Wesley Fink has prepared an article comparing the NVIDIA and VIA solutions, so be sure to check that out if you're interested in the detailed differences between the implementations of the two chipsets.
Because AMD has integrated the memory controller on the Athlon 64's die, the amount of work that needs to be done by the chipset vendors has been reduced significantly. The performance difference you'll see between chipsets should be negligible (even more so than in conventional architectures) as the only variables between chipsets are the South Bridge (IDE, PCI, SATA controllers) and the AGP controller.
AMD has no favorites in the chipset game; although they shipped all initial review systems with nForce3 boards, their reasoning was primarily one of availability, as they had to ship systems out in the summer to meet the deadlines faced by print publications.
As you will find out in Wesley's review, the nForce3 is currently limited to a 600MHz Hyper Transport link between the CPU and the chipset, while VIA's solution runs at 800MHz. The performance difference due to VIA's bandwidth lead is negligible however; remember, we're not talking about memory bandwidth, rather bandwidth between the CPU and the AGP controller. NVIDIA will have 800MHz support in the next version of the nForce3, the 250.
Despite the fact that chipset costs have gone down (as there's no more memory controller), motherboards will not reflect the lower price initially according to motherboard manufacturers. AMD is positioning the Athlon 64 as a premium part and thus the motherboard manufacturers will position their solutions competitively, but don't expect to see lower-than-Socket-A prices.
What's also interesting is the incredible recognition that NVIDIA has managed to establish in the chipset industry with the nForce brand. We are seeing incredible support for nForce3, despite the fact that it doesn't really offer anything above and beyond VIA's solution. We're expecting the nForce3 to be positioned as a premium solution, while VIA will compete for the lower end of the Athlon 64 market - all because of the success of NVIDIA's nForce2 brand; the name nForce3 somehow just sounds all that much more powerful, even though NVIDIA's powerful memory controller isn't being used.
At the start, it looks like NVIDIA will begin to pull ahead as the market leader, but it is unclear how VIA's support for an 800MHz HT bus and potentially lower price point will change things (if at all).
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Anonymous User - Tuesday, September 23, 2003 - link
#38, Huh how heck are we forgetting something NO ONE KNOWS? Has Intel ever really givin an absolute upper limit to the Prescott clocks throughout the year? Last time I heard Tejas would takeover after 4.2Ghz.Anonymous User - Tuesday, September 23, 2003 - link
LOL, you all who think that intel is the winner here, just continue to believe so, but don't tell anyone.If Prescott was so great we should have seen "leaked" benchmarks by now. I saw benchmarks of the Clawhammer more than a year ago.
AMD can not outperform intel because they'll get problems with their supply. That's one of the main reasons AMD don't want to release a cpu that will beat all intel offerings. Imagine what will happen if everyone wants an AMD.
Anonymous User - Tuesday, September 23, 2003 - link
#35, Dude just frigging be quiet as I seriously hope you aren't saying crap like that in public.Anonymous User - Tuesday, September 23, 2003 - link
You guys are forgetting Prescott is capable of 4.6 GHz, and it'll have the price advantage.Anonymous User - Tuesday, September 23, 2003 - link
So what's the difference between 32bit with 64bit extensions, and 64bit with 32bit compatible mode.Anonymous User - Tuesday, September 23, 2003 - link
#29, Didn't Intel reps at IDF make comments to the tune of a 3.2Ghz P4EE offering up better overall performance than a 3.2Ghz Prescott? How heck is Prescott going to change things when it's debutting at 3.4Ghz and going to be up against an FX51 and A64 3400+ (possibly even FX55)?!!?? What part of that shows Intel sailing through 2004 when Prescott is expected to max out at around 4Ghz and A64 hasn't even gone through a die shrink and is already performance competitive with it from the initial 130nm A64 releases??!?Anonymous User - Tuesday, September 23, 2003 - link
Athlon64 isnt running in 32bit compatibility mode. It's still a 32-bit processor with 64-bit extensions, not the other way around. Pure 64-bit processors will trounce it in 64-bit apps.Just keeping up with Intel isn't enough, they needed to take the performance crown without any doubt to really gain back marketshare, right now this is just good enough to tread water, especially considering their pricing. How the next year plays out will be interesting though.
Anonymous User - Tuesday, September 23, 2003 - link
#32Wait till next year when the bugs of 64-bit drivers/software come onto your system. It will be Windows 95 all over again. AMD64 is an expensive disappointment.
THE END
Anonymous User - Tuesday, September 23, 2003 - link
amiga owns you.Anonymous User - Tuesday, September 23, 2003 - link
For everyone saying that the Athlon64 was NOT the so-called AMD Killer, I just have one question:How can you say a 64-bit processor running in 32-bit compatibility mode that keeps up with the best Intel processor, the P4EE, disappointing? Me, I'm waiting for some more 64-bit programs to judge the strength of the Athlon 64. The fact that the Athlon 64 can keep up and sometime pass Intel in 32 bits is awesome.
BTW, I'm not an AMD fanboy. I have both AMD and Intel processors. But I find the Intel zealots are trying to discredit this processor by insisting on only looking at half the picture. Just my opinion.