Intel Pentium 4 506 socket: LGA 775
The Intel Pentium 4 506 uses the LGA 775 socket. It is an 84 W single-core Prescott desktop part at 2.66 GHz with 1 MB of L2 cache for value towers.
- Socket
- LGA 775
- Launched
- June 2005
- Cores and threads
- 1 and 1
- Base power
- 84 W
- Codename
- Prescott
- Segment
- Desktop
- Family
- Intel Pentium 4
- Clocks
- 2.66 GHz
Intel Pentium 4 506 specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | Prescott cores on 90 nm |
| Clocks | 2.66 GHz (no turbo) |
| Cache | 1 MB L2 |
| Processor base power (TDP) | 84 W |
| Manufacturing process | 90 nm |
| Memory support | DDR2 through the board chipset |
| Front side bus | 533 MT/s |
| PCI Express | PCIe or AGP from the board chipset |
| Integrated graphics | None (board video where fitted) |
| Multiplier | Locked |
| Package | LGA 775 |
Motherboard compatibility
Intel Pentium 4 506 needs a motherboard with a LGA 775 socket. Chipset by chipset data for this codename is not recorded yet. See the LGA 775 chipset list and the board maker's CPU support list.
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 4 506 is
The Intel Pentium 4 506 is a 2.66 GHz single-core desktop processor from June 2005. It runs one NetBurst core at 2.66 GHz with no Hyper-Threading, so 1 core gives 1 thread. Cache is 1 MB of L2 on a 90 nm process. Power is rated at 84 W on LGA 775.
The 506 served value LGA 775 towers on a 533 MT/s bus with a 20x multiplier. It exists because buyers wanted a 2.66 GHz Prescott without Hyper-Threading at value prices. Three identical cpu_list rows share this page as one SKU.
Socket and motherboard compatibility
The 506 drops into LGA 775 boards with DDR2 memory and a BIOS that lists Prescott 5xx parts, such as 915 boards. It pairs with value chipsets contemporary with Prescott. 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.
A 533 MT/s front side bus ties the CPU to the chipset. PCIe or AGP slots hang off the chipset.
Cooling is any 84 W rated LGA 775 heatsink on the 72 mm mount.
Upgrade paths
On LGA 775 the upgrade is the Pentium 4 511 at 2.8 GHz with the same 1 MB cache, or the Intel Pentium 4 HT 524 at 3.06 GHz for Hyper-Threading. Beyond LGA 775 a move to a newer platform needs a new board and memory.
Frequently asked questions
What socket does the Pentium 4 506 use?
LGA 775, on DDR2 boards with a Prescott-aware BIOS.
How many cores does the Pentium 4 506 have?
One core and 1 thread at 2.66 GHz with 1 MB of L2 cache and no Hyper-Threading.
What memory works with the Pentium 4 506?
DDR2 through the board chipset in two channels.
Sources and verification
Facts last checked against these sources on . Page last edited on .