Intel Xeon E7458 socket: Socket 604
The Intel Xeon E7458 uses the Socket 604 socket. It is a 90 W six-core Dunnington multiprocessor part at 2.4 GHz with 9 MB of L2 plus 16 MB of shared L3 cache for Caneland servers.
- Socket
- Socket 604
- Launched
- September 2008
- Cores and threads
- 6 and 6
- Base power
- 90 W
- Codename
- Dunnington
- Segment
- Server
- Family
- Intel Xeon
- Clocks
- 2.4 GHz
Intel Xeon E7458 specifications
| Cores | 6 |
|---|---|
| Threads | 6 |
| Core architecture | Dunnington cores on 45 nm |
| Clocks | 2.4 GHz (no turbo) |
| Cache | 9 MB L2 plus 16 MB shared L3 |
| Processor base power (TDP) | 90 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 E7458 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 E7458 is
The Intel Xeon E7458 is a 2.4 GHz multiprocessor six-core part from September 15, 2008. It runs six Core cores at 2.4 GHz with no turbo, so 6 cores give 6 threads. Cache is 9 MB of L2 in three 3 MB slices with a large shared 16 MB L3 on a 45 nm process. Power is rated at 90 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 SLG9N in stepping A1 with SSE4 and SpeedStep. The task list carries this SKU as X7458, but Intel documents it as the E7458, which this page uses. It exists because virtualization hosts wanted six cores with the biggest L3 inside a 90 W envelope.
Socket and motherboard compatibility
The E7458 fits Socket 604 Caneland multiprocessor boards with DDR2 memory and a BIOS that lists Dunnington six-core parts. It scales to multi-socket machines per the board design. 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 with threaded backplates for the 90 W envelope.
Upgrade paths
On Socket 604 the E7458 is the six-core 16 MB ceiling in this batch, so the moves are the Intel Xeon E7450 at 2.4 GHz with 12 MB of L3 for a cheaper six-core part, or the Intel Xeon E7440 at 2.4 GHz as the quad-core 16 MB option. Beyond Socket 604 a move to a newer Xeon platform needs new boards and memory.
Frequently asked questions
What socket does the Xeon E7458 use?
Socket 604, in Caneland multiprocessor server boards.
How many cores does the Xeon E7458 have?
Six cores and 6 threads at 2.4 GHz with 9 MB of L2 plus 16 MB of shared L3.
Is the Xeon E7458 the same as the X7458?
The task list labels it X7458, but Intel documents the 6-core 16 MB part as the E7458, which this page uses.
Sources and verification
Facts last checked against these sources on . Page last edited on .