Athlon64 Preview: nForce3 at 2.0GHz

Final Words

Speculation has churned for months over whether AMD could reach the release speeds necessary for Athlon64 to compete effectively with Pentium 4 and the upcoming Prescott processor. The other concern was whether 32-bit performance would be good enough to make the Athlon64 the winner that AMD needs right now. If Athlon64 is released as a 2.0GHz chip, as rumors have reported, then it looks like Athlon64 will be a Processor that is competitive with the best Pentium 4 in all areas, with compelling performance in several areas.

The impact of Dual-Channel memory is a little harder to estimate in our tests. Athlon64 has been widely reported to be single-channel, where Opteron is Dual-Channel. Again, we expect our results reported here to be in the ballpark. Particularly since reports from the web now indicate there will also be an AthlonFX introduced on the 23rd that is targeted at the Enthusiast, runs even faster, and is based on the Opteron with Dual-Channel memory.

Gaming is one area where our tests show Opteron at 2.0GHZ an amazing performer. When you find game benchmarks 10% to 20% higher, you are genuinely impressed. However, in some of the very latest DX9 benchmarks, Athlon64/Opteron was 40% to 50% faster. This will get the attention of the gaming community, which seems to have a genuine affection for anything AMD already. It is the kind of trend-setting performance that Athlon64 needed to get the attention of an influential market segment.

Workstation Graphics was expected to be a good performer for Athlon64/Opteron, and across the board, the 2.0Ghz Opteron did very well against the best from Intel. One particularly noteworthy area was the performance of the A64 level Opteron compared to an 875 Dual Xeon 3.06 system. We really expected the Xeon dually to trounce our single Opteron, but instead, found a virtual dead-heat. Multiple Opteron systems have been setting records in many areas, and we are certainly looking forward to looking at multiple 200 series Opterons after seeing what our single 144 can do.

The Content Creation and General Usage performance, while competitive, did not stand out like the other performance areas for the 2.0GHz Opteron. We were not really surprised in the Content Creation area, which has always been a challenge for AMD. But, we were a little surprised in the General Usage/Business area, which has always been an AMD strong suit. Since the top performers in this area are nForce2/Athlon combos, we expect that final release products will fare much better in this area. Remember that our Reference board is now a couple of months old, and much has been done in tweaking the nForce3 chipset already. We would be surprised if the Athlon64/nForce3 combo does not perform better in almost every area at launch.

As excited as we are with the performance we found in our Opteron tweaked to Athlon64, keep in mind that this is all 32-bit performance. To quote AMD:

“AMD64 processors like the AMD Opteron and upcoming AMD Athlon 64 processors are compatible with today’s hardware and software and smooth the transition to the next crucial step in the evolution of the personal computer, workstation, server, and supercomputing cluster.”

While delayed, Microsoft’s 64-bit Operating System will carry Athlon64/Opteron to even higher Performance levels. There are also other 64-bit alternatives like Linux, which are not delayed, and who now have a platform opportunity to really grow as the 64-bit alternative. Time will tell if these other players will have any real impact on the 64-bit market. To make launch even more intriguing, we are also seeing many reports that another Athlon64, geared to the Enthusiast community, clocked higher, and an ever better performer, may also emerge on September 23^rd.

These all look like good omens for AMD, and after a very long wait, it’s about time!!