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

To: Cirruslvr who wrote (89965)	1/27/2000 11:48:00 AM
From: milo_morai	Respond to of 1572542

Cirruslvr some info you make enjoy LDT bandwith amd.com Unidirectional point-to-point links in each direction Differential signaling with source synchronous clock forwarding Variable widths negotiated at initialization Upstream and downstream links can be of different size 16/16-bit link provides 6.4 GB/sec each way Multiple logical channels in each link Guaranteed isochronous bandwidth In-band system management and legacy signal transport PCI like configuration mechanism LDT provides the bandwidth I/O and SIO require LDT simplifies and improves MP solutions And we all know EV6 is a pt. to pt. bus. Milo

To: Cirruslvr who wrote (89965)	1/27/2000 1:26:00 PM
From: Tenchusatsu	Respond to of 1572542

Cirrus, re: Foster bus, That article on CNET is correct. Foster's bus will indeed have a bandwidth of 3.2 GB/sec. Interestingly enough, the Foster bus is very similar to the P6 bus, i.e. shared multiprocessor bus, not point-to-point interface. Yes, you are right when you say that Athlon's P2P interface can also do 3.2 GB/sec if (or when) it's clocked up to 400 MHz. Then again, I'm not really sure that Athlon's P2P interface is necessarily superior to a shared multiprocessor bus, considering that Intel is still sticking to the latter even for Itanium and Willamette/Foster. Also, remember that Coppermine with its 1.0 GB/sec bus is doing very well against Athlon, even though Athlon right now has a 1.6 GB/sec bus. It all depends on your architecture and where the performance bottlenecks lie. Tenchusatsu

To: Cirruslvr who wrote (89965)	1/30/2000 10:37:00 AM
From: steve harris	Read Replies (3) \| Respond to of 1572542

cirruslvr, You have posted some of the information before, therefore I have responded to your earlier post concerning Foster. It looks like AMD has chosen to move up LDT on a SMP chipset to go with the Mustang Athlons. www1.amd.com It does appear AMD has decided to bypass a quick solution for now, but then again, it is only 1Q2000. Bring Willy and Foster on................ steve More reading... ebnews.com It is kinda neat that no one outside of AMD really knows what AMD is working on. Cool.