Intel Core 2 Extreme X9000 socket: Socket P
The Intel Core 2 Extreme X9000 uses the Socket P socket. It is an unlocked 44 W dual-core Penryn XE mobile part at 2.8 GHz with 6 MB of shared L2 cache for enthusiast notebooks.
- Socket
- Socket P
- Launched
- January 2008
- Cores and threads
- 2 and 2
- Base power
- 44 W
- Codename
- Penryn XE
- Segment
- Mobile (socketed)
- Family
- Intel Core 2 Extreme
- Clocks
- 2.8 GHz
Intel Core 2 Extreme X9000 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Penryn XE cores on 45 nm |
| Clocks | 2.8 GHz (no turbo) |
| Cache | 6 MB shared L2 |
| Processor base power (TDP) | 44 W |
| Manufacturing process | 45 nm |
| Memory support | DDR2 or DDR3 through the board chipset |
| Front side bus | 800 MT/s |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None (board graphics where fitted) |
| Multiplier | Unlocked (Extreme Edition) |
| Package | Socket P (478-pin) |
| Core voltage | 1.175 V |
| Launch price | $851 manufacturer tray price at launch |
Motherboard and chipset compatibility
Intel Core 2 Extreme X9000 needs a motherboard with a Socket P socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| Montevina (4 series mobile) | GM45, PM45 | Works out of the box |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for Socket P.
Socket P at a glance
| Type | PGA, 478 contacts |
|---|---|
| Package size | 35 × 35 mm |
| Introduced | May 2007 |
| Memory | DDR2 or DDR3, depending on the chipset, two channels |
| Cooler mounting holes | Board specific (laptop heatsink) |
What the Core 2 Extreme X9000 is
The Intel Core 2 Extreme X9000 is an unlocked 2.8 GHz mobile dual core from January 7, 2008. It runs two Penryn cores at 2.8 GHz with no turbo, so 2 cores give 2 threads. Cache is 6 MB of shared L2 on a 45 nm process with 410 million transistors. Power is rated at 44 W on Socket P.
The X9000 led the January 2008 Penryn notebook launch as the enthusiast part, with no bus ratio locks so tuners can raise the 14x multiplier freely. Parts carry SLAQJ with SLAZ3 following at 1.175 V on an 800 MT/s bus, with VT-x virtualization, SSE4.1 and TXT. The die measures 107 mm².
Socket and motherboard compatibility
The X9000 fits Socket P notebooks with DDR2 memory and a BIOS that lists Extreme Penryn parts, validated on Santa Rosa GL960, GM965 and PM965 boards. It does not fit Socket M boards despite the shared 478 pins. Display comes from the notebook board graphics. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is DDR2 or DDR3 through the board chipset in two channels.
An 800 MT/s front side bus ties the CPU to the mobile chipset. PCIe slots and board graphics hang off the chipset.
Cooling is the notebook vendor heat pipe assembly for the exact gaming chassis, with Enhanced SpeedStep trimming clocks and voltage off load.
Upgrade paths
On Socket P the upgrade is the Intel Core 2 Extreme X9100 at 3.06 GHz where the chassis and chipset support 1066 MT/s Extreme parts, or the Intel Core 2 Extreme QX9300 at 2.533 GHz for four cores. A swap must stay within the thermal design the chassis was qualified for.
Frequently asked questions
What socket does the Core 2 Extreme X9000 use?
Socket P, the 478-pin package in enthusiast notebooks.
How many cores does the Core 2 Extreme X9000 have?
Two cores and 2 threads at 2.8 GHz with 6 MB of shared L2 cache.
Is the Core 2 Extreme X9000 unlocked?
Yes, Extreme Edition means no bus ratio locks for overclocking.
Sources and verification
- Intel Core 2 Extreme X9000 specs (TechPowerUp)
- Intel Core 2 Extreme notebook processor (Notebookcheck)
Facts last checked against these sources on . Page last edited on .