Embedded Pentium MMX microprocessors were produced at speeds ranging
from 166 MHz to 266 MHz. Their architecture was very close (if not the
same) as architecture of mobile Pentium MMX CPUs. Like the mobile
Pentium MMX CPUs, embedded Pentium MMX microprocessors operated at
lower core voltage, and in some cases at lower I/O voltage. Combined
with advanced 0.25 manufacturing process this resulted in very low
power consumption. For example, embedded Pentium MMX 266 in plastic
BGA package had almost the same maximum power dissipation and thermal design
power as desktop Pentium non-MMX 75 MHz.
Some embedded microprocessors had multiprocessing feature disabled,
and they could not recognize upgrade processor installed in an upgrade socket.
Embedded Pentiums were fabricated in plastic PGA package (the same
package that was used for desktop and mobile Pentium MMX CPUs), and in
smaller High-thermal Low-profile Plastic Ball Grid Array (HL-PBGA)
package.
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