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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AgaBooga - Tuesday, September 23, 2003 - link
Where is the P4EE in the memory tests?Anonymous User - Tuesday, September 23, 2003 - link
Personally this was rather anti-climatic for me. It's certainly not a Intel killer that all the hype proclaimed. AMD for business, Intel for content, and a throwup for gaming. Same as it has been for awhile.Anonymous User - Tuesday, September 23, 2003 - link
#27 & #28 (amd fanboy double post)It SHOULD be up there with the P4EE because the PRESCOTT will be coming right around the corner! Face it, AMD did not put out a killer and Intel is sitting pretty in 2004.
Anonymous User - Tuesday, September 23, 2003 - link
#20 are you serious? Did you just comment in the forum without looking at the review or did you actually look at the review. AMD is not "lagging" behind Intel. They are right up there with them. Look at the benchmarks and you will see the CURRENTLY AVAILABLE Athlon64 easily matches a NOT CURRENTLY AVAILABLE P4EE.Anonymous User - Tuesday, September 23, 2003 - link
#20 are you serious? Did you just comment in the forum without looking at the review or did you actually look at the review. AMD is not "lagging" behind Intel. They are right up there with them. Look at the benchmarks and you will see the CURRENTLY AVAILABLE Athlon64 easily matches a NOT CURRENTLY AVAILABLE P4EE.Anonymous User - Tuesday, September 23, 2003 - link
AMD, Pamela Anderson called. She want's to know how she can get a bust as big as yours. I have two words for AMD- "Segway" and "Scooter."Anonymous User - Tuesday, September 23, 2003 - link
nForce3 performance bugTime to re-do the benchmarks, Anand.
Your FX-51 benchmarks are inaccurate.
http://www20.tomshardware.com/cpu/20030923/athlon_...
Nvidia: NForce-3 Bug
The extremely low AGP performance of the NForce3 can be clearly attributed to problems with the HyperTransport channel interface to the Northbridge. That is proven by the benchmark results and the performance differences of up to 33.2 percent. Details about this can be found in the benchmark section of this article.
Originally, Nvidia had planned to also integrate a SATA RAID controller in the Southbridge. Although the controller is included in the current NForce 3, Nvidia deactivated this feature. The reason was that error-free operation was not possible. For this reason, we decided to use additional boards based on the VIA K8T800 chipset.
Nvidia (Athlon 64 FX, or alternatively GeForce FX - related names) may be a more high-profile partner for AMD than VIA. However, we would point out that VIA, with the K8T800 chipset, currently offers a clearly better solution for the Athlon 64.
Anonymous User - Tuesday, September 23, 2003 - link
What is that smell?AMD just let loose with a huge turd!
Anonymous User - Tuesday, September 23, 2003 - link
#4 You may be right (I don't think so but let say you are), but then ask yourself - where is the Pentium 4 Extreme Edition? There is no mention of this CPU at Intel web site at all, there is no datasheet and no batch numbers. Today, it is only a prototype CPU, such as Prescott is. They managed to build few Gallatin B1 cores that are able to work at this frequency and then remarked them. This CPU is not reality, only OEMs can buy it in very limited quantities, but end users can't. I think a 3 GHz Athlon 64 FX on 90nm prototype would perform far the best in this review... and it would be the same policy as with this Pentium 4 Extreme Edition.Anonymous User - Tuesday, September 23, 2003 - link
#17 Answers:1. Athlon 64's memory controller is very fast as you can see from the benchmarks. Dual channel is only needed in some situations to give decent performance. HT operates at 800 MHz with DDR and 16 bits, thus giving 3.2 GB/s each way (6.4 GB/s). Not so bad for a I/O and AGP interface only bus
3. S754 is a lower end platform while S940 is an Opteron platform. AMD will introduce S939 early next year and will continue to produce CPUs for all those sockets. S940 A64 FX will, however, disapper in the end of next year.
6. HyperTransport "Tunnel" system allows for practically unlimited number of chipset combinations, thus a PCI Express will only require to add another Tunnel or integrate it into current chipsets.