Xeon E5405 vs E5345

Primary details

Comparing Xeon E5345 and Xeon E5405 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2355	2405
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.04	no data
Market segment	Server	Server
Power efficiency	1.40	1.28
Architecture codename	Clovertown (2006−2007)	no data
Release date	14 November 2006 (18 years ago)	1 October 2007 (17 years ago)
Launch price (MSRP)	$851	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E5345 and Xeon E5405 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	4 (Quad-Core)	no data
Threads	4	no data
Base clock speed	2.33 GHz	2 GHz
Boost clock speed	0.33 GHz	no data
L1 cache	64 KB (per core)	no data
L2 cache	4 MB (per die)	no data
L3 cache	8 MB L2 Cache	12 MB L2 Cache
Chip lithography	65 nm	45 nm
Die size	2x 143 mm2	no data
Maximum core temperature	no data	67 °C
Maximum case temperature (TCase)	66 °C	no data
Number of transistors	582 million	no data
64 bit support	+	+
Windows 11 compatibility	no data	-
VID voltage range	1V-1.5V	0.85V-1.35V

Compatibility

Information on Xeon E5345 and Xeon E5405 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.

Number of CPUs in a configuration	2	no data
Socket	LGA771,PLGA771	LGA771
Power consumption (TDP)	80 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5345 and Xeon E5405. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	-
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	-
Thermal Monitoring	+	+
Demand Based Switching	+	-
PAE	32 Bit	no data
FSB parity	+	+

Security technologies

Xeon E5345 and Xeon E5405 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5345 and Xeon E5405 are enumerated here.

VT-x	+	+
EPT	-	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5345 and Xeon E5405. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR2, DDR3 Depends on motherboard

no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	1.18	1.08
Recency	14 November 2006	1 October 2007
Chip lithography	65 nm	45 nm

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Should you still have questions on choice between Xeon E5345 and Xeon E5405, ask them in Comments section, and we shall answer.

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