Intel Xeon 5050 socket: Socket 771
The Intel Xeon 5050 uses the Socket 771 socket. It is a 95 W dual-core Dempsey server part at 3 GHz with Hyper-Threading and 4 MB of L2 cache for dual-processor racks.
- Socket
- Socket 771
- Launched
- May 2006
- Cores and threads
- 2 and 4
- Base power
- 95 W
- Codename
- Dempsey
- Segment
- Server
- Family
- Intel Xeon
- Clocks
- 3.0 GHz
Intel Xeon 5050 specifications
| Cores | 2 |
|---|---|
| Threads | 4 |
| Core architecture | Dempsey cores on 65 nm |
| Clocks | 3 GHz (no turbo) |
| Cache | 4 MB L2 (2x2 MB) |
| Processor base power (TDP) | 95 W |
| Manufacturing process | 65 nm |
| Memory support | DDR2 FB-DIMMs through the server board chipset |
| Front side bus | 667 MT/s |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | LGA 771 |
Motherboard compatibility
Intel Xeon 5050 needs a motherboard with a Socket 771 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket 771 chipset list and the board maker's CPU support list.
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 5050 is
The Intel Xeon 5050 is a 3 GHz dual-core server processor from May 2006. It runs two NetBurst cores at 3 GHz with Hyper-Threading on both cores, so 2 cores give 4 threads. Cache is 4 MB of L2 as two 2 MB dies on a 65 nm process. Power is rated at 95 W on Socket 771.
The 5050 topped the 667 MT/s Dempsey line on an 18x multiplier at about 177 dollars launch price. It exists because dual-processor buyers wanted 3 GHz threaded throughput with the full cache at the standard 95 W.
Socket and motherboard compatibility
The 5050 fits dual-socket Socket 771 server boards with a BIOS that lists Dempsey parts. It suits mainstream racks qualified for 95 W dual cores. 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 667 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 95 W envelope in racks with directed airflow.
Upgrade paths
On Socket 771 the upgrade is Woodcrest such as the 5140 at 2.333 GHz for Core efficiency, or the Intel Xeon 5040 at 2.83 GHz for a lower cost Dempsey. Beyond Socket 771 a move to a newer Xeon platform needs new boards and memory.
Frequently asked questions
What socket does the Xeon 5050 use?
Socket 771, in dual-socket server boards with Dempsey support.
How many cores does the Xeon 5050 have?
Two cores and 4 threads at 3 GHz with Hyper-Threading and 4 MB of L2 cache.
What memory works with the Xeon 5050?
DDR2 FB-DIMMs through the server board chipset.
Sources and verification
Facts last checked against these sources on . Page last edited on .