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View Full Version : So PAT = OC'd Memory Controller



BrainStorm
05-28-2003, 09:10 AM
Check out this question from SimHQ and answer from Intel's George Alfs in an interview:

Can you explain what PAT means to all of us non-technical people? “How does this help my computer go faster”? is the most common question.

Performance Acceleration Technology is one of the features of our 875P (Canterwood) chipset. We basically bin our Memory Controller Hub (MCH) chips like our CPUs, finding the fastest silicon. We can then use this fast silicon to shave off a couple of memory clock cycles, resulting in better performance.

Sounds like an overclocked memory controller. I'm not familair with this stuff yet, but can you turn PAT off and on? So it looks like all it really is doing is speeding up the memory controller when it's on.

Dissolved
05-28-2003, 09:13 AM
sounds very interesting..


BTW Dal won last night :banana:

Zroc
05-28-2003, 09:16 AM
Sort of. PAT simply reduces controller latencies when used with 800 FSB chips (does not function with 533 chips).
No, you can't turn it on or off...it's on automatically with an 800 FSB chip.

BrainStorm
05-28-2003, 09:22 AM
Originally posted by Zroc
Sort of. PAT simply reduces controller latencies when used with 800 FSB chips (does not function with 533 chips).
No, you can't turn it on or off...it's on automatically with an 800 FSB chip.

Ah...interesting. So it's reduced latencies rather than actual "overclocking." That makes sense now reading the quote a bit more closely and the part about "shaving a few clock cycles". Thanks for the info.


Originally posted by Dissolved
sounds very interesting..


BTW Dal won last night :banana:

Yeah, they showed heart I didn't think they had :)

JCviggen
05-28-2003, 10:31 AM
basically they take a shortcut in the controller.... but I suppose the silicon needs to be up to it. However I doubt there are significant differences in "quality" or "achievable speed" between the Springdale and Canterw, thats like saying you should get a 3.2 P4 because the 3.0 doesnt clock high enough