Linked by Thom Holwerda on Fri 29th Dec 2006 21:35 UTC
IBM Judging by details revealed in a chip conference agenda, the clock frequency race isn't over yet. IBM's Power6 processor will be able to exceed 5 gigahertz in a high-performance mode, and the second-generation Cell Broadband Engine processor from IBM, Sony and Toshiba will run at 6GHz, according to the program for the International Solid State Circuits Conference that begins February 11 in San Francisco.
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RE[3]: Uh-Oh
by renox on Tue 2nd Jan 2007 13:02 UTC in reply to "RE[2]: Uh-Oh"
renox
Member since:
2005-07-06

> does this mean that RISC processors (SPARC, ARM, POWER/PPC/Cell, etc.) are meant more for every other hardware system (embedded, server, console, etc.) except for the desktop?

The reason why embedded CPUs are RISC is that they are new CPUs: every "new" CPU is RISC, even Itanium has RISC (additionally it has VLIW characteristic) features: lots of register, orthogonal ISA, load/store ISA, easy instruction decoding..

In the desktop space, software compatibility has proven more important than CPU performance alone: the big number of x86 sold reduced the price of x86 CPU which are very good in performance/price ratio even when they had less power than RISCs so x86 won the desktop space..
As it happens x86 are CISCs.

It doesn't mean that RISCs are 'bad for desktop', it just means that in the desktop space, software compatibility has more importance than in the embedded space..

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