Intel Pentium 4-M 1.50 socket: Socket 478
The Intel Pentium 4-M 1.50 uses the Socket 478 socket. It is a Northwood mobile part at 1500 MHz with 512 KB of L2 cache for Socket 478 notebooks with DDR memory.
- Socket
- Socket 478
- Launched
- April 2002
- Cores and threads
- 1 and 1
- Base power
- n/a
- Codename
- Northwood
- Segment
- Mobile (socketed)
- Family
- Intel Pentium 4-M
- Clocks
- 1.5 GHz
Intel Pentium 4-M 1.50 specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | Northwood cores on 130 nm |
| Clocks | 1500 MHz (no turbo) |
| Cache | 512 KB L2 |
| 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 (15x) |
| Package | Socket 478 (478-pin mPGA, mobile) |
Motherboard compatibility
Intel Pentium 4-M 1.50 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 1.50 is
The Intel Pentium 4-M 1.50 is a 1500 MHz single-core mobile processor from April 2002. It runs one NetBurst Northwood core at 1500 MHz with no Hyper-Threading, so 1 core gives 1 thread. Cache is 512 KB of L2 on a 130 nm process. The package is Socket 478 for notebooks with DDR slots. This page omits a TDP rating because the cpu_list 26 W figure lacks a direct table entry for the 1.50 P4-M bin in opened sources, while nearby 1.60 to 1.80 P4-M bins show 30 W with different clocks.
The 1.50 P4-M uses a 400 MT/s front side bus with a 15x multiplier and SpeedStep trimming voltage on battery. Intel placed it in April 2002 as an entry notebook chip with a small package. The chip supports MMX, SSE and SSE2. Mobile Celeron 1.50? No Celeron at the same 1.5 GHz exists with 128 KB as a value alternative, so cache separates the lines at identical frequency.
Entry SpeedStep operation with a full 512 KB cache suited thin mainstream notebooks. The part trims clocks on battery for longer life, which matters more than peak frequency in small bodies. That is why P4-M parts cost more than Mobile Celeron parts at similar megahertz.
Socket and motherboard compatibility
The Pentium 4-M 1.50 fits Socket 478 notebooks with DDR memory and P4-M BIOS support. It needs a notebook Socket 478 board. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Entry DDR 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 with SpeedStep control.
Upgrade paths
On Socket 478 the mobile P4-M steps are 1.60 and 1.70 parts where listed. Pentium M Banias parts on Socket 479 offer lower power paths for thin bodies. The 1.50 removes with the socket mechanism, so swaps need no solder work.
Frequently asked questions
What socket does the Pentium 4-M 1.50 use?
Socket 478, in notebooks with P4-M support.
How many cores does the Pentium 4-M 1.50 have?
One core and 1 thread at 1500 MHz with 512 KB of L2 cache.
What memory works with the Pentium 4-M 1.50?
DDR through the board chipset with notebook slots.
Can the Pentium 4-M 1.50 be upgraded?
The 1.60 and 1.70 share the mobile socket. Pentium M needs Socket 479.
Sources and verification
Facts last checked against these sources on . Page last edited on .