| [News] Marvell announces Discovery III Northbridge | ANN.lu |
| Posted on 30-Sep-2003 15:01 GMT by takemehomegrandma | 94 comments
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Marvell today announced the Discovery III northbridge. It features a 200MHz PowerPC CPU interface, 200MHz DDR SDRAM Interface (400Mbps data rate), Dual CPU SMP Support (MPX and 60x modes), PCI-X, Gigabit ethernet and is software compatible with other Discovery northbridges.
Source: morphos-news.de
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| Marvell announces Discovery III Northbridge : Comment 58 of 94 | ANN.lu |
| Posted by Crumb // AAT on 01-Oct-2003 05:48 GMT | In reply to Comment 33 (Eva):
"-----
the sad part is that g3/g4s still don't have DDR support
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???? Also Discovery 2 supports perfectly DDR ram! Read well the specs! "200MHz DDR SDRAM Interface (400Mbps data rate)"
It uses the same Aplle G5 Bus approach!
... I have to admint that for my bros it's a Apple G5 BUS copy!
Anyway really the best open chipset for PPC systems
And Bplan already use a chip Discovery for Pegasos 2 and with the backward compatibility of Discovery 3 chipsets ... :D"
@Eva:
Even if the northbridge supported 1Ghz DDR memory, the g3/g4 wouldn't take advantage of it because they don't support DDR. They would continue talking with the northbridge in the same way the would do with an older northbridge.
note that it's great to be able to use 400Mhz DDR memory because the rest of the board can take advantage of it, but sorry, until IBM or Motorola decides to add DDR support g3/g4 will run as good as with normal sdram. Simply check out benchmarks of macs with g4 and DDR memory and G4 with normal SDRAM... you will see that there's little speed increase.
There were rumours of some very limited test editions of G4s cpus with DDR support and apple prototypes, but they are probably false... :-/ |
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