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Processor News

AMD have released two new processors and two new revisions of their Athlon and Duron processors recently.

The Athlon 64 is a new 64-bit processor which is set to take AMD back to the top of the performance ladder, this 754 pin processor isn't compatible with old socket A boards because it uses it's own dedicated HyperTransport connection with the chipset. Boasting 1MB of cache this is a powerful processor with even more performance available if the Operating System and associated Programs are re-compiled to run in 64 bit.

The Athlon 64 FX is the high end model in the range. It has 940 pins, so isn't pin compatible with the normal Athlon 64. This allows it to have true dual channel access to the system memory, further boosting it's performance.

The Duron has been spruced up by moving over to the Applebred core (a Thoroughbred B core with only 64k of cache), this allows for the front side bus speed to be increased to 266MHz.
There is a new model of the Athlon XP, the Thorton, which uses a Barton core with half the cache disabled (so only 256k of cache is available for programs).
Intel are introducing a new processor socket for the latest model of the Pentium 4. Instead of being based on the socket 478 format, this processor uses a new LGA (Land Grid Array) 775 design and naming scheme for it's processors based on model numbers instead of clock speeds. This will replace the speed with a three-digit number, starting with 3 for low-end chips, 5 for standard performance and 7 for the top of the range models.
 
  7xx series 5xx series 3xx series
Desktop Pentium 4
Extreme Edition
Pentium 4 Celeron D
Mobile Pentium M
(Dothian)
Mobile Pentium 4 Celeron M

The intention is to increase the xx numbers with the feature count of a processor, not the performance.

Intel have just released the Pentium 4 Extreme which is differentiates itself from normal P4's by virtue of 2MB of onboard cache, this gives the processor a performance boost and allows it to compete performance wise with the Athlon 64 FX processor (in 32 bit programs). Rumors that you may need to re-mortgage your house to buy one may be unfounded.

A new model of the Pentium 4, the Prescott, differs from the previous Northwood A core in that it has a die size of 0.09 µm and level 2 cache of 1MB. This allows the processor to compete on a equal footing with the Athlon 64, although if 64bit programs are used the Athlon 64 should come in to it's own.

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