Intel Pentium 4-M 1.80 socket: Socket 478
The Intel Pentium 4-M 1.80 uses the Socket 478 socket. It is a 30 W single-core Northwood mobile part at 1800 MHz with 512 KB of L2 cache for Socket 478 notebooks.
- Socket
- Socket 478
- Launched
- April 2002
- Cores and threads
- 1 and 1
- Base power
- 30 W
- Codename
- Northwood
- Segment
- Mobile (socketed)
- Family
- Intel Pentium 4-M
- Clocks
- 1.8 GHz
Intel Pentium 4-M 1.80 specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | Northwood cores on 130 nm |
| Clocks | 1800 MHz (no turbo) |
| Cache | 512 KB L2 |
| Processor base power (TDP) | 30 W |
| Manufacturing process | 130 nm |
| Memory support | DDR through the board chipset |
| Front side bus | 400 MT/s |
| PCI Express | AGP from the board chipset |
| Integrated graphics | None (board graphics where fitted) |
| Multiplier | Locked (18x) |
| Package | Socket 478 (478-pin mPGA, mobile) |
Motherboard compatibility
Intel Pentium 4-M 1.80 needs a motherboard with a Socket 478 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket 478 chipset list and the board maker's CPU support list.
Socket 478 at a glance
| Type | PGA, 478 contacts |
|---|---|
| Package size | n/a |
| Introduced | 2001 |
| Memory | DDR through the board chipset |
| Cooler mounting holes | Board specific (Socket 478 bracket) |
What the Pentium 4-M 1.80 is
The Intel Pentium 4-M 1.80 is a 1800 MHz single-core mobile processor from April 2002. It runs one NetBurst Northwood core at 1800 MHz 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 30 W in a Socket 478 package with a 400 MT/s front side bus and an 18x multiplier.
The 1.80 P4-M continues the flat 30 W line from the 1.60 and 1.70 with the same cache, using a higher multiplier at the same voltage window. Intel placed it in April 2002. The chip supports MMX, SSE and SSE2 with SpeedStep. Mobile Pentium 4 1.80? No desktop-replacement 1.80 exists at the same clocks with higher power, so the P4-M stands alone with battery savings.
Steady clocks with SpeedStep savings suited mainstream road use. The 30 W envelope with a full 512 KB cache gives desktop-like responsiveness with hours of battery life. That is why P4-M parts remained popular after Mobile Pentium 4 parts took wall powered niches.
Socket and motherboard compatibility
The Pentium 4-M 1.80 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 30 W.
Upgrade paths
On Socket 478 the steps are P4-M 1.90 and 2.00 parts. Pentium M Banias parts on Socket 479 offer lower power paths. The 1.80 removes with the socket mechanism, so swaps need no solder work.
Frequently asked questions
What socket does the Pentium 4-M 1.80 use?
Socket 478, in notebooks with P4-M support.
How many cores does the Pentium 4-M 1.80 have?
One core and 1 thread at 1800 MHz with 512 KB of L2 cache.
What memory works with the Pentium 4-M 1.80?
DDR through the board chipset with notebook slots.
Can the Pentium 4-M 1.80 be upgraded?
The 1.90 and 2.00 share the mobile socket. Pentium M needs Socket 479.
Sources and verification
Facts last checked against these sources on . Page last edited on .