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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Marco Polo who wrote (60488)	6/4/1999 1:11:00 AM
From: kash johal	Respond to of 1571685

Benjamin, Re:" I said "bus" not bus. Point-to-point isn't a bus, depending on how you look at it. You can't do point-to-point with your current computer, which is how I know you've never overclocked anything." First of all you are wrong it is a bus. A good analogy for no techies is the point to point topology is the "commuter lane on the freeway" it's designed to limit the traffic so that traffic will flow faster. On the P6/K6 family they use a more geenral purpose bus " a regular freeway that has a whole bunch more traffic that can slow total throughput". Geez, I hope that doesn't end up confusing everybody. Regards, Kash

To: Marco Polo who wrote (60488)	6/4/1999 1:18:00 AM
From: Elmer	Read Replies (2) \| Respond to of 1571685

Re: "I said "bus" not bus. Point-to-point isn't a standard bus, depending on how you look at it. You can't do point-to-point with your current computer, which is how I know you've never overclocked anything. K7 features memory port, similar to AGP as I understand it." It might be valuable to define the difference between a bus and a port. I'm going to take a stab at it but I can't be certain I'm completely correct. First, a bus allows for multiple entities to access it, so there must be an arbitration protocol directly for the bus, a port has no such requirements because it isn't shared. Second, a bus has a different transmission line signature because of the multiple entities that may or may not be attached. For example the PCI bus may have 1-4 or more devices attached. A port is much easier to impedence match because the loading is fixed and does not change with regards to capacitance or length. The K7 system architecture uses processor ports. A different port is required for each processor in a multiprocessor system. The P6 architecture uses a system bus which is shared between 1-4 different processors. EP

To: Marco Polo who wrote (60488)	6/4/1999 1:19:00 AM
From: grok	Respond to of 1571685

RE: <I said "bus" not bus. Point-to-point isn't a standard bus, depending on how you look at it. You can't do point-to-point with your current computer, which is how I know you've never overclocked anything. K7 features memory port, similar to AGP as I understand it.> OK, let me get this straight. When I said "No problem. Just do it the same way you use 133 MHz sdrams with 200 MHz bus" I should have said "No problem. Just do it the same way you use 133 MHz sdrams with 200 MHz 'not a standard bus, depending on how you look at it' "bus"."