Intel Pentium E5800 socket: LGA 775
The Intel Pentium E5800 uses the LGA 775 socket. It is a 65 W dual core Wolfdale desktop part at 3.2 GHz with 2 MB of L2 cache.
- Socket
- LGA 775
- Launched
- November 2010
- Cores and threads
- 2 and 2
- Base power
- 65 W
- Codename
- Wolfdale
- Segment
- Desktop
- Family
- Intel Pentium
- Clocks
- 3.2 GHz
Intel Pentium E5800 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Wolfdale cores on 45 nm |
| Clock | 3.2 GHz (no turbo) |
| Front side bus | 800 MT/s |
| Cache | 2 MB L2 (shared) |
| Thermal design power | 65 W |
| Manufacturing process | 45 nm |
| Memory support | DDR2 or DDR3, two channels (board dependent) |
| PCI Express | PCIe Gen 2 from the board chipset |
| Integrated graphics | None (board video where fitted) |
| Multiplier | Locked |
| Package | LGA775 (FC-LGA6) |
Motherboard and chipset compatibility
Intel Pentium E5800 needs a motherboard with a LGA 775 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| Intel 4 series | X48, P45, G45, G41 | Works out of the box |
| Intel 3 series | X38, P35, G33, G31 | Needs a BIOS update 45 nm Wolfdale parts boot on 3 series 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 LGA 775.
LGA 775 at a glance
| Type | LGA, 775 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | 2004 |
| Memory | DDR, DDR2 or DDR3, depending on the motherboard chipset |
| Cooler mounting holes | 72 × 72 mm |
What the Pentium E5800 is
The Intel Pentium E5800 is a dual core Wolfdale desktop processor that Intel added in November 2010. It runs two cores at 3.2 GHz with no turbo, so 2 cores give 2 threads. The pair shares 2 MB of L2 cache on a 45 nm process. Power is rated at 65 W with an 800 MT/s front side bus and the SLGTG sSpec.
The E5800 is the fastest 800 MT/s Pentium, 200 MHz above the E5700 at the same 65 W. At 3.2 GHz it matches the 1066 MT/s E6700 on clocks with a slower bus, which shows only in bandwidth heavy tasks. It was the last Pentium for LGA 775 before Sandy Bridge Celeron and Pentium parts.
There is no graphics on the CPU. Display comes from the board chipset or a discrete card.
Socket and motherboard compatibility
The Pentium E5800 fits LGA 775 with 775 lands. Intel 4 series boards boot it natively with a late 2010 BIOS, 3 series after a listed update.
The Socket vs chipset: what decides whether a CPU works guide covers pairing rules, and the Intel Core 2 Quad Q6600 page shows a quad on the same socket.
Memory, PCIe and cooling
Memory is DDR2 or DDR3 in two channels depending on the board chipset.
The 800 MT/s front side bus links the CPU to the chipset. PCIe Gen 2 slots hang off the chipset.
Cooling is the stock 65 W LGA 775 sink on the 72 × 72 mm pattern.
Upgrade paths
On LGA 775 the upgrade is a Core 2 Duo E8xxx with 6 MB of cache or a Core 2 Quad on boards with strong delivery. Beyond LGA 775 a move to LGA 1156 needs a new board.
Frequently asked questions
What socket does the Pentium E5800 use?
LGA 775, the 775-land package. Late 2010 BIOS on 4 series, listed update on 3 series.
How many cores does the Pentium E5800 have?
Two cores and two threads at 3.2 GHz with 2 MB of shared L2 cache.
What memory works with the Pentium E5800?
DDR2 or DDR3 in two channels depending on the board chipset.
Sources and verification
Facts last checked against these sources on . Page last edited on .