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


To: Tenchusatsu who wrote (55621)4/15/1999 5:07:00 PM
From: Scumbria  Read Replies (1) | Respond to of 1577195
 
Ten,

On the other hand, I feel the 200 MHz bus will take more advantage of RDRAM than the 133 MHz bus of the Camino chipset. This could be a real advantage for the K7, if it can get proper chipset support for RDRAM.

I still haven't figured out which desktop applications are memory bandwidth limited. I know that Winstone is not one of them, so I don't see K7, DRDRAM or Camino offering any advantage Winstone advantage.

Scumbria



To: Tenchusatsu who wrote (55621)4/15/1999 5:18:00 PM
From: Gopher Broke  Read Replies (1) | Respond to of 1577195
 
Isn't the company with the fastest processor going to command the highest margins? Getting ahead of the race early is important for AMD. Does it really matter if we have to wait for the faster bus? In fact, upgrading the bus later gives a nice MB performance ramp-up to go alongside the CPU speed ramp.

So the key question is whether AMD can deliver on their promise, not whether K7 will sell with "only" a 133 MHz bus.



To: Tenchusatsu who wrote (55621)4/15/1999 5:28:00 PM
From: Ali Chen  Read Replies (1) | Respond to of 1577195
 
Ten, <No, they'd rather wow you with high "potential" bus
speeds, when the reality is that they aren't needed...>
The reality is that you are slipping down, boy, in
your desperation to bash AMD.
In the reality there are more than one address
space in PC. There are AGP space, PCI space, I/O
space. All these spaces may compete for CPU access,
and faster CPU bus helps a lot. Just an example, a
CPU may want to read data from memory (1/2 bus
bandwidth), process them (in pipeline), and paste
the data into AGP space (another 1/2 bandwidth) for
displaying. There could also be a snooping activity
due to busmastering PCI transfers, for sound mixing for
example. I am curious, what are you doing in
"server chipsets" if you do not understand these
elementary things? Just to remind you, all the data
streams are usually well FIFO buffered/combined in
the North Bridges (chipset in your terminology),
and therefore all transactions can go as efficient
bursts across the CPU-to-bridge connection, with
good bus utilization.

So, calm down, life is good.
- Ali



To: Tenchusatsu who wrote (55621)4/15/1999 6:32:00 PM
From: Kevin K. Spurway  Read Replies (1) | Respond to of 1577195
 
Re: "Then the processor-to-chipset connection doesn't need to run at 200 MHz at all. Run that bus at 133 MHz and the K7 will do just fine."

Other stuff interfaces directly to the chipset as well (PCI, AGP, etc.). This consumes some bandwidth I'd imagine, especially with 4x AGP, where the "extra" 66 Mhz could come in handy.

Plus, marketing a 200 MHz FSB is better than marketing a 133 or a 100 MHz FSB, even if technically the 200 MHz FSB is only between the CPU and chipset. <GG>

Kevin