| Brand | Intel |
| EAN | 4053162399273 |
| Model | AT80602000771AA |
| MPN | AT80602000771AA |
| ASIN | B0047EQVP8 |
| Box | No |
| Bus bandwidth | 6.4 |
| Bus Type | QPI |
| Bus type units | GT/s |
| Cache memory | 8 MB |
| Component for | Server/Workstation |
| ECC | Yes |
| Embedded options available | No |
| Enhanced intel speedstep technology | Yes |
| Execute disable bit | Yes |
| Idle states | Yes |
| Intel 64 | Yes |
| Intel Demand Based Switching | Yes |
| Intel enhanced halt state | Yes |
| Intel trusted execution technology | No |
| Launch date | Q1'09 |
| Market segment | SRV |
| Maximum internal memory | 147456 MB |
| Maximum internal memory supported by processor | 144 GB |
| Memory channels | Triple-channel |
| Memory clock speeds supported by processor | 800,1066,1333 MHz |
| Memory types supported by processor | DDR3-SDRAM |
| Number of QPI links | 2 |
| On-board graphics adapter | No |
| Processor ARK ID | 37106 |
| Processor boost frequency | 3.06 GHz |
| Processor brand name | Intel Xeon |
| Processor cache type | Smart Cache |
| Processor code | SLBF5 |
| Processor codename | Nehalem EP |
| Processor cores | 4 |
| Processor family | Intel® Xeon® 5000 Sequence |
| Processor frequency | 2.66 GHz |
| Processor lithography | 45 nm |
| Processor manufacturer | Intel |
| Processor model | X5550 |
| Processor package size | 42.5 x 45 mm |
| Processor series | Intel Xeon 5500 series |
| Processor socket | Socket B (LGA 1366) |
| Product name | Intel Xeon X5550 (8M Cache, 2.66 GHz, 6.40 GT/s Intel QPI) |
| Product Type | Processor |
| Status | Discontinued |
| Stepping | D0 |
| Tcase | 75 °C |
| VID voltage range | 0.75 - 1.35 V |