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Tolapai is the code name of Intel's embedded system on a chip (SoC) which combines a Pentium M (Dothan) processor core, DDR2 memory controllers and input/output (I/O) controllers, and a QuickAssist integrated accelerator unit for security functions. [1]



The Tolapai embedded processor has 148 million transistors on a 90 nm process technology, 1088-ball FCBGA with a 1.092mm pitch, and comes in a 37.5mm × 37.5mm package. It is also Intel's first integrated x86 processor, chipset and memory controller since 1994's 80386EX. [2]

Intel EP80579 integrated processor for embedded computing:

List of Intel 80579 processors

Frequency L2
FSB Mult. Voltage TDP Socket Release datePart
price (USD)
without QuickAssist
EP80579 Integrated Processor, 600 MHz
  • SLJ6D (B1)
  • SLJ6F (B1)
600 MHz256 KB 400 MT/s1 V
11 W
FCBGA1088Q3 2008
  • NU80579EZ600C
  • NU80579EZ600CT
EP80579 Integrated Processor, 1066 MHz
  • SLJ6C (B1)
1.07 GHz256 KB533 MT/s1.3 V
18 W
FCBGA1088Q3 2008
  • NU80579EZ004C
EP80579 Integrated Processor, 1200 MHz
  • SLJ6B (B1)
1.2 GHz256 KB533 MT/s1.3 V
19 W
FCBGA1088Q3 2008
  • NU80579EZ009C
with QuickAssist
EP80579 Integrated Processor with QuickAssist, 600 MHz
  • SLJ6A (B1)
600 MHz256 KB 400 MT/s1 V
13 W
FCBGA1088Q3 2008
  • NU80579EB600C
EP80579 Integrated Processor with QuickAssist, 1066 MHz
  • SLJ69 (B1)
  • SLJ6E (B1)
1.07 GHz256 KB533 MT/s1.3 V
20 W
FCBGA1088Q3 2008
  • NU80579ED004C
  • NU80579ED004CT
EP80579 Integrated Processor with QuickAssist, 1200 MHz
  • SLJ68 (B1)
1.2 GHz256 KB533 MT/s1.3 V
21 W
FCBGA1088Q3 2008
  • NU80579ED009C

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  1. "Cnet News: Live from Hot Chips 19: Session 7, Networking" . Retrieved 2007-12-31.
  2. Intel confirms details of Tolapai, a SoC embedded processor Ars Technica, August 30, 2007