Intel Celeron D 326 socket: LGA 775
The Intel Celeron D 326 uses the LGA 775 socket. It is a 73 W single-core Prescott desktop part at 2.53 GHz with 256 KB of L2 cache for value LGA 775 towers.
- Socket
- LGA 775
- Launched
- September 2004
- Cores and threads
- 1 and 1
- Base power
- 73 W
- Codename
- Prescott
- Segment
- Desktop
- Family
- Intel Celeron D
- Clocks
- 2.53 GHz
Intel Celeron D 326 specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | Prescott cores on 90 nm |
| Clocks | 2.53 GHz (no turbo) |
| Cache | 256 KB L2 |
| Processor base power (TDP) | 73 W |
| Manufacturing process | 90 nm |
| Memory support | DDR or 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 (19x) |
| Package | LGA 775 (775-land FCLGA) |
Motherboard compatibility
Intel Celeron D 326 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 Celeron D 326 is
The Intel Celeron D 326 is a 2.53 GHz single-core value processor from September 2004. It runs one NetBurst Prescott core at 2.53 GHz with no Hyper-Threading, so 1 core gives 1 thread. Cache is 256 KB of L2 on a 90 nm process. Power is rated at 73 W in an LGA 775 package.
The 326 refreshes the 325 at nearly identical clocks with updated steppings for LGA 775 value boards. It uses a 533 MT/s front side bus with a 19x multiplier, matching the 2.533 GHz 325 within rounding. Intel added Execute Disable support on later steppings where listed, which separates 326 from early 325 parts without changing the value price point. The chip supports MMX, SSE, SSE2 and SSE3.
Model numbers with one digit differences confuse buyers. The 325 at 2.533 GHz and the 326 at 2.53 GHz share clocks, cache and power, with stepping and feature flags as the real difference. That is why board BIOS lists matter more than the last digit when fitting a replacement.
Socket and motherboard compatibility
The Celeron D 326 fits LGA 775 value desktops with a 533 MT/s bus and Prescott Celeron BIOS support. It needs a land grid board, not a Socket 478 board. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
DDR value towers with integrated graphics are the natural match. Intel 915 chipsets with 533 MT/s support accept the chip with a 73 W cooler. Boards listing the 325 normally accept the 326 with a BIOS update for the newer stepping.
Memory, PCIe and cooling
Memory is DDR or DDR2 through the board chipset. The CPU has no memory controller, so the board sets speed and capacity.
A 533 MT/s front side bus ties the CPU to the chipset, while graphics hangs off the chipset. No PCIe lanes originate on the die. Cooling uses the LGA 775 plate with a 73 W heatsink at 72 mm spacing. Normal airflow suits the envelope.
Upgrade paths
On LGA 775 the steps are the Celeron D 330 at 2.667 GHz and the 335 at 2.8 GHz with the same cache. Pentium 4 505 parts add threads and cache as a larger lift. Beyond NetBurst a move to Core Celeron parts needs new chipset support. The 326 lifts with the load plate, so swaps need no solder work.
Frequently asked questions
What socket does the Celeron D 326 use?
LGA 775, on value desktops with Prescott Celeron support.
How many cores does the Celeron D 326 have?
One core and 1 thread at 2.53 GHz with 256 KB of L2 cache.
What memory works with the Celeron D 326?
DDR or DDR2 through the board chipset.
Can the Celeron D 326 be upgraded?
The 330 and 335 share the socket. Pentium 4 505 adds threads and cache.
Sources and verification
Facts last checked against these sources on . Page last edited on .