G4 and G5 performance will be gaining on Intel very soon
Soc7777777 said:
Intel researches and creates the pentium m (and designs it...) SPECIFICLY for mobile computers... apples problem is they create desktop processors (whether ibm or moto) and then wait to 'fit' them in a laptop...
The G4 was not designed to be used solely as a desktop chip, it was targeted for the embedded market. Two different markets, but due to the embedded market performance demands becoming much more similar to what is needed for notebooks, the G4 is going to gain ground compared to the Pentium-M in the next few months.
The Pentium-M topped out at 1.7GHz on a 130-nm process size and the G4 has essentially reached the end on the same process size at 1.5GHz. That's about a 13% frequency advantage for the Pentium-M compared to the G4.
Now, the Pentium-M moved to a smaller 90-nm process size and it's current top frequency is 2GHz. Compare that to the upcoming 2GHz G4 on the same process size and the G4 will have gained 13% on the Pentium-M. In defense of the Pentium-M it is expected to reach 2.1GHz in the first quarter of 2005, which will be as much as a 5% frequency increase compared to the G4.
The G4 fastest bus speed is now 167MHz, but Motorola will move that to at least 333GHz when the 2GHz G4 arrives in the next few months. Motorola (or to be more accurate FreeScale) mentions that the next G4 will have DDR and DDR2 capabilities. Which means the G4 should be capable of more than a 333MHz bus speed.
Main memory latency will be improved for this upcoming G4 by moving the memory controller onto the processor. In other words, the delay time communicating with main memory will be reduced.
So whatever speed advantage the Pentium-M has compared to the G4 now will be greatly reduced when the next G4 arrives. A Motorola executive stated in 2003 that the G4 will double in frequency about every 18 months, so that would be about July or August of 2004 when this update should arrive. Seeing how IBM and Intel have transitioned to the 90-nm process and Motorola is working with two chip making partners, this G4 made on a 90-nm process should be showing up very shortly.
the pentium m is going to keep getting better... and by the time the g5 reaches the laptops, they will be merely 'catching up' with the comperable pcs.. then the Pcs will come out with the 64 bit pentium m like chip that will distroy the g5 and once again apple will be behind...
The G5s main target is not the notebook computer market. If Apple comes out with a G5 PowerBook it will be mainly to satisfy the demands for one by their customers.
It's in the desktop and small server markets that the G5 will make major performance gains compared to what Intel will offer. The top frequency of the 970 is 60% less than the Pentium 4 on the same process size. Since the 970 is expected to reach 3GHz in about August, that would place it about 15-20% behind the frequency of the Pentium 4. In other words the 970 will have gained considerably in performance compared to the Pentium 4. By January the 970 will get another boost in speed when the Power5 derived version comes out. That could give another 40-50% speed increase with the addition of a bigger cache and multi-threading capabilities.
Intel has stated the currenlty produced 90-nm Prescott Pentium 4 will top out at 5GHz and there was a updated Tejas version in the wings that was to be produced late in 2004 or early 2005. But, Intel found out that the maximum power usage of Tejas was going to approach 150 watts and that was unacceptable evidently because Tejas has been cancelled. Now that leaves Intel with extending the Prescott platform a few months while they work on a Pentium-M derived replacement for it. The Pentium-M is no match for the Pentium 4 in performance for the desktop, so Intel is probably going to be speeding the transitioning to a dual-cpu Pentium-M on a 65-nm process. To counter that IBM could easily fit two 970FX processors on one chip at the 65-nm process size.
All-in-all the Mac should be gaining considerable ground in performance comparisons with the Intel chips in the next few months.