IBM 43W5990 | Intel Xeon E5540 Quad Core 2.53GHz 1MB L2 Cache 8MB L3 Cache 5.86GT/S QPI Socket B(LGA-1366) 45NM 80W Processor for BladeCenter

1. Processor Type: Intel Xeon E5540
2. Processor Core: Quad-Core
3. Clock Speed: 2.53 GHz
4. L2 Cache: 1 MB
5. L3 Cache: 8 MB
6. QPI Speed: 5.86 GT/s
7. Socket Type: LGA 1366
8. Manufacturing Process: 45 nm
9. Thermal Design Power: 80 W
10. Virtualization Technology: Yes
11. Trusted Execution Technology: Yes
12. Enhanced Intel SpeedStep Technology: Yes

Notes:
1. The Intel Xeon E5540 is a powerful processor suitable for high-performance computing.
2. The 8 MB L3 Cache helps to improve the processor's performance.
3. The processor's support for virtualization technology makes it ideal for use in virtualized environments.