Sijun Forums Forum Index
Log in to check your private messages
My Profile Search Who's Online Member List FAQ Register Login Sijun Forums Forum Index

Post new topic   Reply to topic
   Sijun Forums Forum Index >> Digital Art Discussion
View previous topic :: View next topic  
Author   Topic : "NEW Dual G4 1.2Ghz"
B0b
member


Member #
Joined: 14 Jul 2002
Posts: 1807
Location: Sunny Dorset, England

PostPosted: Wed Aug 14, 2002 2:06 am     Reply with quote
looks like someone at apple has woken up and smelt the coffee..
lets wait for the benchmarks to come in then

[ August 14, 2002: Message edited by: B0b ]
Back to top
View user's profile Send private message Visit poster's website AIM Address Yahoo Messenger MSN Messenger
Frog
member


Member #
Joined: 11 Feb 2002
Posts: 269
Location: UK

PostPosted: Wed Aug 14, 2002 3:00 am     Reply with quote
Saw this link at CGtalk, just like I said there it's a smart move to make G4's dual proc as standard seeing as Motorola can only do 1.25Ghz chips. At least now Macs have a fighting chance of keeping up with PCs speed-wise. They will still get smoked by dual proc PCs obviously

I think Apple have already posted some "real world" benchmarks that show the Dual G4's are faster than a single proc PC, I'm sure they're being honest
Back to top
View user's profile Send private message Send e-mail Visit poster's website
noire
junior member


Member #
Joined: 15 Apr 2002
Posts: 5
Location: Ohio

PostPosted: Sun Aug 18, 2002 4:55 pm     Reply with quote
It's unfortunate however, that these new macs are running slower than their old counterparts:

from OSNews.com

quote:
BareFeats has a benchmark, testing the SDRAM-based dual G4 at 1Ghz with the new DDR PC2100 ones. The new PowerMacs are the same or slower than their previous models, the test reveals. The Mac community got a bit dissapointed (judging from the forums). The author says that the slowdown is because the two processors share a 1GB/s pipe to Apple's custom AGP/Memory controller. While the shared bandwidth is a factor, it is not the reason that makes the new Macs slower. Having a better look at the specs, show that the author have forgot a very important detail:
The new PowerMacs have 1 MB of L3 Cache, while the SDRAM ones have 2 MB of L3 and that's the real reason which results to the slowdown.

Especially his kinds of tests, that could fit a lot of their information on that cache, have a bigger impact when you have less cache. The author implies a technical "flaw" of the overall design, a hidden bottleneck, but this time I will have to semi-take Apple's side, and say that this is not a technical flaw, but simply a design decision on the amount of L3 cache to be included.

Apple's only mistake was to take this decision in order to decrease the price of the new Macs. Selling a slower Mac than the previous same model, it is just not good business these days for Apple.

New Macs might be a bit slower or the same speed as the previous same model Macs, despite the fact that they now using DDR. But this slowness is certainly not for the reasons the author implies ("shared bandwidth").

Update: BareFeats have now updated their web site with the information about the cache, as presented here.

In other Mac news, Apple will coincide with next week's release of Mac OS X version 10.2 (also known as Jaguar), consumers can buy a $199 a copy of the operating system and install it on up to five Macs in a single household

Back to top
View user's profile Send private message Send e-mail Visit poster's website AIM Address
Display posts from previous:   
Post new topic   Reply to topic    Sijun Forums Forum Index -> Digital Art Discussion All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum




Powered by phpBB © 2005 phpBB Group