Intel Xeon X5550

Basic information:
Released	2009
Segment	Server
Socket	LGA1366
Bus	6.4 GT/s QPI (3200 MHz)
Number of cores	4
Number of threads	8
Base frequency	2667 MHz
Turbo Boost	3067 MHz
Unlocked multiplier	no
Architecture (core)	Nehalem-EP
Lithography	45 nm
Transistors, mil.	731
TDP	95 W
Max. temperature	75° C
Products webpage	follow >

Internal memory
L1 Cache, Кb	4x32 + 4x32
L2 Cache, Кb	4x256
L3 Cache, Кb	8192

Integrated modules
iGPU	no
Memory controller	3-channel (DDR3-800, DDR3-1066, DDR3-1333) ECC memory supported
PCIe controller	no
Other modules	no

Instructions, technology
• MMX • SSE • SSE2 • SSE3 • SSSE3 • SSE4 (SSE4.1 + SSE4.2) • EM64T (Intel 64)	• NX (XD, Execute disable bit) • VT-x (Virtualization technology) • VT-d (Virtualization for directed I/O) • Hyper-Threading • Turbo Boost • Enhanced SpeedStep tech.

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