Intel Xeon L7455 socket: Socket 604
The Intel Xeon L7455 uses the Socket 604 socket. It is a 65 W six-core Dunnington low-voltage multiprocessor part at 2.133 GHz with 9 MB of L2 plus 12 MB of shared L3 cache.
- Socket
- Socket 604
- Launched
- September 2008
- Cores and threads
- 6 and 6
- Base power
- 65 W
- Codename
- Dunnington
- Segment
- Server
- Family
- Intel Xeon
- Clocks
- 2.13 GHz
Intel Xeon L7455 specifications
| Cores | 6 |
|---|---|
| Threads | 6 |
| Core architecture | Dunnington cores on 45 nm |
| Clocks | 2.133 GHz (no turbo) |
| Cache | 9 MB L2 plus 12 MB shared L3 |
| Processor base power (TDP) | 65 W |
| Manufacturing process | 45 nm |
| Memory support | DDR2 through the Caneland board chipset |
| Front side bus | 1066 MT/s |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | Socket 604 (604-pin FC-mPGA) |
| Core voltage | 0.9 to 1.45 V |
Motherboard compatibility
Intel Xeon L7455 needs a motherboard with a Socket 604 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket 604 chipset list and the board maker's CPU support list.
Socket 604 at a glance
| Type | PGA, 604 contacts |
|---|---|
| Package size | n/a |
| Introduced | 2002 |
| Memory | DDR2 memory through the Caneland board chipset |
| Cooler mounting holes | Board specific (server heatsink) |
What the Xeon L7455 is
The Intel Xeon L7455 is a low-voltage 2.133 GHz multiprocessor six-core part from September 15, 2008. It runs six Core cores at 2.133 GHz with no turbo, so 6 cores give 6 threads. Cache is 9 MB of L2 in three 3 MB slices with a shared 12 MB L3 on a 45 nm process. Power is rated at 65 W on Socket 604.
Dunnington packs three dual-core dies with a shared L3 for up to four-socket Caneland servers on a 1066 MT/s bus at 0.9 to 1.45 V, part SLG9M in stepping A1 with SSE4 and SpeedStep. It exists because dense racks wanted six Dunnington cores inside a 65 W envelope.
Socket and motherboard compatibility
The L7455 fits Socket 604 Caneland multiprocessor boards with DDR2 memory and a BIOS that lists low-voltage Dunnington parts. It suits dense chassis qualified for 65 W six-core chips. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is DDR2 through the Caneland board chipset.
A 1066 MT/s front side bus ties the CPU to the server chipset. PCIe slots hang off the chipset.
Cooling uses vendor qualified server heatsinks for the 65 W envelope in dense chassis with directed airflow.
Upgrade paths
On Socket 604 the upgrade is the Intel Xeon E7450 at 2.4 GHz with 12 MB of L3 at 90 W, or the Intel Xeon E7458 at 2.4 GHz with 16 MB of L3. The Intel Xeon L7445 at 2.133 GHz is the 50 W quad-core option. Beyond Socket 604 a move to a newer Xeon platform needs new boards and memory.
Frequently asked questions
What socket does the Xeon L7455 use?
Socket 604, in Caneland multiprocessor server boards.
How many cores does the Xeon L7455 have?
Six cores and 6 threads at 2.133 GHz with 9 MB of L2 plus 12 MB of shared L3.
What memory works with the Xeon L7455?
DDR2 through the Caneland board chipset.
Sources and verification
Facts last checked against these sources on . Page last edited on .