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Thread ID: 18366	2002-04-23 23:23:00	Faster PC's	Guest (0)	Press F1

Post ID	Timestamp	Content	User
45288	2002-04-23 23:23:00	Today, it seems that the PC's memory subsystem is -the- culprit when it comes to system performance. This memory bottleneck has always inhibited overall system speed and still, in the age of GHZ processors, the memory is only just now getting to 333MHZ DDR or RDRAM at 400MHz. This is just a fraction of the speed at which processors run. My question is why don't they design processors that have varying amounts of DDR-RAM etc. on the same die as the processors (similar to cache) If this is not physically possible, what about a system like SLOT-1 and SLOT-2 where the cache RAM ran at half proccessor speed, but utilise system RAM I realise that other system functions use the RAM too (DMA, AGP etc.) But the proccessor still has the largest requirement for high speed RAM access and throughput. Using same-die RAM would enable the RAM to run closer to CPU speed due to the smaller physical distances. Admittedly this would restrict the RAM upgrade path you can take, but today, 512MB is more that enough and when you require more that that in the near future, your proccessor will undoubtably require updating anyway.	Guest (0)
45289	2002-04-24 00:48:00	The hard disk is still the biggest bottle neck. JM	Guest (0)
45290	2002-04-24 00:48:00	'Using same-die RAM would enable the RAM to run closer to CPU speed ' not quite that simple. remember the only reason they made slot1 was that they couldn't fit the l2 cache on die let alone try and fit 512 meg ram on die even with todays manafacturing process. even to make large l2 caches its not cheap. i doubt that they could make it cheap enough for anyone to buy and the speed increase would not be huge. you wouldn't get the ram running anywhere near cpu speed. unfortunatly memory technolgy is not accelerating as fast as cpus.	Guest (0)
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