Today Intel officially launched five new processors, the Pentium 4 600 series (which includes the 630, 640, 650 and 660 processors) and the Pentium 4 XE at 3.73 GHz. All of Intel's new processors include support for eXecute Disable (XD), AMD's x86-64 (by way of EM64T), Enhanced Intel Speedstep Technology (EIST) and 2MB of L2 cache. All are based on the Prescott 2M core.
XD is a technology that helps prevent buffer overflow attacks in processors and is also supported by AMD64 processors (called NX), the Pentium 4J, Celeron J and the Itanium 2. EM64T is what Intel calls their implementation of AMD’s x86-64, and EIST is a means for changing the processors speed in order to make it run cooler. Pricing is expected to be $999 (USD) for the XE, $605 for the 660, $401 for the 650, $273 for the 640 and the 630 at $224.
XD is a technology that helps prevent buffer overflow attacks in processors and is also supported by AMD64 processors (called NX), the Pentium 4J, Celeron J and the Itanium 2. EM64T is what Intel calls their implementation of AMD’s x86-64, and EIST is a means for changing the processors speed in order to make it run cooler. Pricing is expected to be $999 (USD) for the XE, $605 for the 660, $401 for the 650, $273 for the 640 and the 630 at $224.
