AMD 64 hyper transport single channel

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Results from running memtest86 on three computers:

Memtest86 Summary
	AMD Athlon XP 2100	Intel Pentium M 1.3GHz	AMD Athlon 64 3400 (socket754)
Operating      Frequency	1.7GHz	1.3GHz	2.4GHz
L1 Size(KiB)	128	64	128
L2 Size(KiB)	256	1024	512
RAM Size(MiB)	768	496	1024
L1 Rate(MiB/s)	10602	16034	19664
L2 Rate(MiB/s)	3375	7967	4886
RAM Rate(MiB/s)	505	939	1441
Chipset	VIA KT400(A)/600	Intel i855GM/GME      FSB:99MHz	SIS 760/M760
Settings	DDR266	RAM: 132MHz (DDR264)  CAS: 2-3-2-6	DDR400

Notes:

• memtest misidentified the operating frequency of the Athlon64. It should be 2.2GHz.

The Athlon64, being on socket 754, only have a single channel to the RAM.
Athlon64 on socket 939 (I don't have one) would have two channels to the RAM. Of course, to take advantage of the second channel, you'd have to have a second DIMM module.
I have no idea how to test the decrease in latency of RAM access AMD touts in Athlon64 with its built-in memory controller.

(originally from http://microjet.ath.cx/WebWiki/Amd64HyperTransportSingleChannel.html)