Xeon E7520 vs E5450

Primary details

Comparing Xeon E5450 and Xeon E7520 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2081	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	1.92	no data
Release date	1 October 2007 (17 years ago)	1 January 2010 (14 years ago)

Detailed specifications

Xeon E5450 and Xeon E7520 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	no data	4 (Quad-Core)
Threads	no data	8
Base clock speed	3 GHz	1.87 GHz
Boost clock speed	no data	1.87 GHz
L3 cache	12 MB L2 Cache	18 MB L3 Cache
Chip lithography	45 nm	45 nm
Maximum core temperature	67 °C	70 °C
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon E5450 and Xeon E7520 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Socket	LGA771	FCLGA1567
Power consumption (TDP)	80 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5450 and Xeon E7520. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	+	no data

Security technologies

Xeon E5450 and Xeon E7520 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5450 and Xeon E7520 are enumerated here.

VT-x	+	+
EPT	-	+

Pros & cons summary

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Recency	1 October 2007	1 January 2010
Power consumption (TDP)	80 Watt	95 Watt

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Should you still have questions on choice between Xeon E5450 and Xeon E7520, ask them in Comments section, and we shall answer.

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