The 3400+ was announced on January 6th - just in time for CES. On launch day, Anand published a detailed analysis of the 3400+. Since that article, readers have been asking if AnandTech could do a follow-up, benchmarking the Athlon64 series using our standard motherboard benchmarks on the top motherboards for the Athlon64, Athlon64FX, and Pentium 4. That is the purpose of this Part 2 follow-up, which tests the top CPU's from Intel and AMD on the top-performing motherboards that we have tested for each platform.
The top-line Athlon64 FX51 is designed for Socket 940, dual-channel Registered memory; it has 1Mb of on-chip cache, and runs at 2.2 GHz. The 3400+ runs at the same 2.2GHz speed and also has 1Mb of cache, but it fits Socket 754 and works with single-channel unbuffered DDR memory - the memory most users already own. With the speed and cache-size of the 3400+ and FX51 being the same, it is natural to ask how the 2 processors compare in performance using the best-performing hardware that we have tested at AnandTech. As you suggested, we also put the 3.2GHz P4EE and the standard Pentium 4 3.2GHz through our standard benchmarks on an Asus P4C800-E to see how the best from Intel compares with the Athlon64 line.
The 3400+ becomes the 3rd member of the Socket 754 family, which now contains 3000+, 3200+, and 3400+ processors. Like the other Socket 754 Athlon64 chips, the 3400+ is built on an organic substrate with the full heat-spreader that has been used on all the Athlon64 family. One more Socket 754 speed bump is expected later this year before the move from .13 to .09 manufacturing process.
While the Socket 754 and the Socket 940 require different boards and function in different ways, they are exactly the same size, and all of the Athlon64 family chips are physically larger than current P4 chips.
Above, you can see the differences in the 2500+ Barton/Athlon XP, Socket 754 Athlon64, and the Socket 940 Athlon64 FX/Opteron. While the Athlon64 socket is smaller than the older Socket A, it is still larger than Intel's Socket 478.
A few on-line shops jumped the gun by advertising the 3400+ before it was launched on January 6th. The good news is that the price of the 3400+ is about the same as the price of the 3200+ before the launch of the 3400+. With the 3400+ around $430 and the 3000+ around $220, the 3200+ has now settled in the middle at about the $300 price point.