Intel Xeon E5472 socket: Socket 771
The Intel Xeon E5472 uses the Socket 771 socket. It is an 80 W quad-core Harpertown server part at 3 GHz with 12 MB of L2 cache on a 1600 MT/s bus for bandwidth sensitive racks.
- Socket
- Socket 771
- Launched
- November 2007
- Cores and threads
- 4 and 4
- Base power
- 80 W
- Codename
- Harpertown
- Segment
- Server
- Family
- Intel Xeon
- Clocks
- 3.0 GHz
Intel Xeon E5472 specifications
| Cores | 4 |
|---|---|
| Threads | 4 |
| Core architecture | Harpertown cores on 45 nm |
| Clocks | 3 GHz (no turbo) |
| Cache | 12 MB L2 (2x6 MB) |
| Processor base power (TDP) | 80 W |
| Manufacturing process | 45 nm |
| Memory support | DDR2 FB-DIMMs through the server board chipset |
| Front side bus | 1600 MT/s |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | LGA 771 |
Motherboard and chipset compatibility
Intel Xeon E5472 needs a motherboard with a Socket 771 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| Intel 5400 series | 5400 | Works out of the box |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for Socket 771.
Socket 771 at a glance
| Type | LGA, 771 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | May 2006 |
| Memory | DDR2 and DDR3 through the server board chipset |
| Cooler mounting holes | Board specific (server heatsink) |
What the Xeon E5472 is
The Intel Xeon E5472 is a 3 GHz server quad core from November 2007. It runs four Core cores at 3 GHz with no turbo, so 4 cores give 4 threads. Cache is 12 MB of L2 as two 6 MB dies on a 45 nm process. Power is rated at 80 W on Socket 771.
The E5472 paired 3 GHz clocks with the faster 1600 MT/s bus in a 7.5x multiplier at about 1022 dollars launch price. It exists because bandwidth sensitive servers wanted 3 GHz quad throughput with higher bus speed at the standard 80 W.
Socket and motherboard compatibility
The E5472 fits dual-socket Socket 771 server boards with a BIOS that lists 1600 MT/s Harpertown quads. It suits bandwidth sensitive racks qualified for 80 W quads. Check the server maker CPU list for the exact board and stepping. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is DDR2 FB-DIMMs through the server board chipset.
A 1600 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 80 W envelope in racks with directed airflow.
Upgrade paths
On Socket 771 the upgrade is the Intel Xeon X5472 at 3 GHz with the same cache on 1600 MT/s at 120 W where the chassis allows, or the Intel Xeon E5462 at 2.8 GHz for a lower cost 1600 MT/s part. Beyond Socket 771 a move to a newer Xeon platform needs new boards and memory.
Frequently asked questions
What socket does the Xeon E5472 use?
Socket 771, in dual-socket server boards with 1600 MT/s Harpertown support.
How many cores does the Xeon E5472 have?
Four cores and 4 threads at 3 GHz with 12 MB of L2 cache.
What memory works with the Xeon E5472?
DDR2 FB-DIMMs through the server board chipset.
Sources and verification
Facts last checked against these sources on . Page last edited on .