Intel Pentium 4-M 2.00 socket: Socket 478

What the Pentium 4-M 2.00 is

The Intel Pentium 4-M 2.00 is a 2 GHz single-core mobile processor from June 2002. It runs one NetBurst Northwood core at 2 GHz with no Hyper-Threading, so 1 core gives 1 thread. Cache is 512 KB of L2 on a 130 nm process. Power is rated at 32 W in a Socket 478 package with a 400 MT/s front side bus and a 20x multiplier.

The 2.00 P4-M shares clocks with desktop Pentium 4 2.0A parts at 52.4 W, yet the mobile bin trims power to 32 W with SpeedStep voltage control. Intel placed it in June 2002 as a mainstream notebook step above the 1.90. The chip supports MMX, SSE and SSE2. Mobile Pentium 4 2.00? No desktop-replacement 2.00 exists at the same clocks, so the P4-M stands alone with battery savings.

Low mobile power with a full 512 KB cache suited thin mainstream notebooks. The 32 W envelope with SpeedStep allows hours of battery life, while the large cache keeps office tasks responsive at 2 GHz. That is why P4-M parts cost more than Mobile Celeron parts at similar megahertz.

Socket and motherboard compatibility

The Pentium 4-M 2.00 fits Socket 478 notebooks with P4-M support. It needs a notebook Socket 478 board. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

Mainstream notebooks are the natural match. Maker lists decide fit.

Memory, PCIe and cooling

Memory is DDR through the board chipset with notebook slots. The CPU has no controller.

A 400 MT/s bus ties the CPU to the chipset, while graphics hangs off the chipset. No PCIe lanes originate on the die. Cooling is the notebook heat pipe for 32 W.

Upgrade paths

On Socket 478 the step is the P4-M 2.20 part. Pentium M Banias parts on Socket 479 offer lower power paths. The 2.00 removes with the socket mechanism, so swaps need no solder work.