>>>>> "Conn" == Conn Clark <clark at esteem.com> writes:
Conn> Apple just released there new Macs with DDR SDRAM
Conn> support. Does that mean there is a new G4 that supports DDR
Conn> SDRAM ? Apple has to be using a new G4 because they claim a
Conn> 1.25GHz clock speed and a 166MHz FSB clock rate. Any body
Conn> heard anything about this?
For "G4" PPC chips (really Motorola 74xx) the RAM controller is on a
separate companion chip. For example Marvell's Discovery 2 companion
chip supports DDR and works with Mororola 74xx and IBM 750 chips.
However, the fastest Motorola 7455 chips I've heard of are 1 GHz with
a 133 MHz bus. Perhaps the new Macs are using CPUs available only to
Apple?
- Roland
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
