Intel Core 2 Duo T8300 socket: Socket P

The Intel Core 2 Duo T8300 uses the Socket P socket. It is a 35 W dual-core Penryn mobile part at 2.4 GHz with 3 MB of shared L2 cache for mainstream notebooks.

Socket
Socket P
Launched
January 2008
Cores and threads
2 and 2
Base power
35 W
Codename
Penryn
Segment
Mobile (socketed)
Clocks
2.4 GHz

Intel Core 2 Duo T8300 specifications

Cores2
Threads2
Core architecturePenryn cores on 45 nm
Clocks2.4 GHz (no turbo)
Cache3 MB shared L2
Processor base power (TDP)35 W
Manufacturing process45 nm
Memory supportDDR2 through the board chipset
Front side bus800 MT/s
PCI ExpressPCIe from the board chipset
Integrated graphicsNone (board graphics where fitted)
MultiplierLocked
PackageSocket P (478-pin)

Motherboard and chipset compatibility

Intel Core 2 Duo T8300 needs a motherboard with a Socket P socket. The table shows which chipset series accept it.

SeriesChipsetsSupport
Montevina (4 series mobile)GM45, PM45Works out of the box
Santa Rosa (965)GM965, PM965Needs a BIOS update
45 nm Penryn parts boot on Santa Rosa boards that list them, after a BIOS update.

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

TypePGA, 478 contacts
Package size35 × 35 mm
IntroducedMay 2007
MemoryDDR2 or DDR3, depending on the chipset, two channels
Cooler mounting holesBoard specific (laptop heatsink)

Read the full Socket P socket guide

What the Core 2 Duo T8300 is

The Intel Core 2 Duo T8300 is a 2.4 GHz mobile dual core from January 2008. It runs two Penryn cores at 2.4 GHz with no turbo, so 2 cores give 2 threads. Cache is 3 MB of shared L2 on a 45 nm process. Power is rated at 35 W on Socket P.

The T8300 brought 45 nm Penryn efficiency to mainstream Santa Rosa-refresh notebooks on an 800 MT/s bus, with VT virtualization and SSE4.1 over Merom parts. It exists because notebook makers wanted cooler mainstream dual cores at the same 35 W envelope.

Socket and motherboard compatibility

The T8300 fits Socket P notebooks with DDR2 memory and a BIOS that lists early-2008 Penryn parts. Santa Rosa boards need a Penryn-aware BIOS update. 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 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 chassis, with Enhanced SpeedStep trimming clocks and voltage on battery.

Upgrade paths

On Socket P the upgrade is the Intel Core 2 Duo P8400 at 2.267 GHz in a 25 W envelope, or the Intel Core 2 Duo T9550 at 2.667 GHz where the chassis and chipset support 1066 MT/s parts. A swap must stay within the thermal design the chassis was qualified for.

Frequently asked questions

What socket does the Core 2 Duo T8300 use?

Socket P, the 478-pin package in Santa Rosa-refresh notebooks.

How many cores does the Core 2 Duo T8300 have?

Two cores and 2 threads at 2.4 GHz with 3 MB of shared L2 cache.

What memory works with the Core 2 Duo T8300?

DDR2 through the board chipset in two channels.

Sources and verification

  1. Intel Core 2 Duo (Penryn) (ThinkWiki)
  2. Intel Core2 Solo and Duo processors MDDS (Intel)

Facts last checked against these sources on . Page last edited on .