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<blockquote data-quote="Avalon" data-source="post: 44171" data-attributes="member: 5184">I think the speed increase between single and dual CPU (same kind and speed) lies around 30%. It depends a lot on how good applications are programmed to use both CPUs effectively, which means that each CPU works at a different task simultaneously.The speed increase of a dual G5 comparde to a single G5 is more significant, because each processor can access it's own part of the RAM. Dual G4 share the same RAM for both CPUs.Concerning the G5 for Powerbooks, that's difficult to say...personnally, I don't think they will come before next year. The power consumption, and thus, heat dissipation is still a big issue, which makes it difficult to integrate it in a laptop.You can see it on the new Dual 2.5GHz G5...it's liquid cooled! Mainly because a conventionnal cooling system with fans would surely be way too loud, because of the ammount of heat.Anyway, Powerbooks G5 will surely not start at 2GHz, 1.6GHz would be more realistic for the first revision.But all of this is only my personal opinion <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin&nbsp; &nbsp; :D" loading="lazy" data-shortname=":D" /></blockquote>

[QUOTE="Avalon, post: 44171, member: 5184"] I think the speed increase between single and dual CPU (same kind and speed) lies around 30%. It depends a lot on how good applications are programmed to use both CPUs effectively, which means that each CPU works at a different task simultaneously. The speed increase of a dual G5 comparde to a single G5 is more significant, because each processor can access it's own part of the RAM. Dual G4 share the same RAM for both CPUs. Concerning the G5 for Powerbooks, that's difficult to say...personnally, I don't think they will come before next year. The power consumption, and thus, heat dissipation is still a big issue, which makes it difficult to integrate it in a laptop. You can see it on the new Dual 2.5GHz G5...it's liquid cooled! Mainly because a conventionnal cooling system with fans would surely be way too loud, because of the ammount of heat. Anyway, Powerbooks G5 will surely not start at 2GHz, 1.6GHz would be more realistic for the first revision. But all of this is only my personal opinion :D [/QUOTE]

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