| Segment | Processor Name1 | Clock Speed | Intel® QuickPath Interconnect Speed2 | Shared Level-3 Cache | Max Memory Speed | # of Cores / Threads | Intel® Hyper-Threading Technology3 | Intel® Turbo Boost Technology4 | Power |
| 2S Workstation | Intel® Xeon® processor W5580 | 3.20 GHz | 6.4 GT/s | 8MB | 1333 MHz | 4 / 8 | 130W | ||
| Advanced | Intel® Xeon® processor X5570 | 2.93 GHz | 6.4 GT/s | 8MB | 1333 MHz | 4 / 8 | 95W | ||
| Intel® Xeon® processor X5560 | 2.80 GHz | 6.4 GT/s | 8MB | 1333 MHz | 4 / 8 | 95W | |||
| Intel® Xeon® processor X5550 | 2.66 GHz | 6.4 GT/s | 8MB | 1333 MHz | 4 / 8 | 95W | |||
| Standard | Intel® Xeon® processor E5540 | 2.53 GHz | 5.86 GT/s | 8MB | 1066 MHz | 4 / 8 | 80W | ||
| Intel® Xeon® processor E5530 | 2.40 GHz | 5.86 GT/s | 8MB | 1066 MHz | 4 / 8 | 80W | |||
| Intel® Xeon® processor E5520 | 2.26 GHz | 5.86 GT/s | 8MB | 1066 MHz | 4 / 8 | 80W | |||
| Intel® Xeon® processor L5520 | 2.26 GHz | 5.86 GT/s | 8MB | 1066 MHz | 4 / 8 | 60W | |||
| Basic | Intel® Xeon® processor E5506 | 2.13 GHz | 4.8 GT/s | 4MB | 800 MHz | 4 / 4 | 80W | ||
| Intel® Xeon® processor L5506 | 2.13 GHz | 4.8 GT/s | 4MB | 800 MHz | 4 / 4 | 60W | |||
| Intel® Xeon® processor E5504 | 2.00 GHz | 4.8 GT/s | 4MB | 800 MHz | 4 / 4 | 80W | |||
| Intel® Xeon® processor E5502 | 1.86 GHz | 4.8 GT/s | 4MB | 800 MHz | 2 / 2 | 80W | |||
| 1S Workstation5 | Intel® Xeon® processor W3570 | 3.20 GHz | 6.4 GT/s | 8MB | 1333 MHz | 4 / 8 | 130W | ||
| Intel® Xeon® processor W3540 | 2.93 GHz | 4.8 GT/s | 8MB | 1066 MHz | 4 / 8 | 130W | |||
| Intel® Xeon® processor W3520 | 2.66 GHz | 4.8 GT/s | 8MB | 1066 MHz | 4 / 8 | 130W |
1Intel® processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. See www.intel.com/products/processor_number for details.
2Intel® QuickPath Interconnect (Intel® QPI); GT/s (Gigatransfers per second).
3Intel® Hyper-Threading technology (Intel® HT technology) requires a computer system with a processor supporting HT technology and an HT technology-enabled chipset, BIOS, and operating system. Performance will vary depending on the specific hardware and software you use. For more information including details on which processors support HT technology, see www.intel.com/info/hyperthreading.
4Intel® Turbo Boost technology requires a PC with a processor with Intel Turbo Boost technology capability. Intel Turbo Boost technology performance varies depending on hardware, software, and overall system configuration.
5The thermal solution is included with the boxed product.