Xeon E5540 vs X3440

Primary details

Comparing Xeon X3440 and Xeon E5540 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2037	2035
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.54	0.64
Market segment	Server	Server
Power efficiency	1.74	2.07
Architecture codename	Lynnfield (2009−2010)	Gainestown (2009−2010)
Release date	8 September 2009 (15 years ago)	30 March 2009 (15 years ago)
Launch price (MSRP)	$215	$30

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5540 has 19% better value for money than Xeon X3440.

Detailed specifications

Xeon X3440 and Xeon E5540 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)	4 (Quad-Core)
Threads	8	8
Base clock speed	2.53 GHz	2.53 GHz
Boost clock speed	2.93 GHz	2.8 GHz
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8 MB (shared)	8 MB (shared)
Chip lithography	45 nm	45 nm
Die size	296 mm2	263 mm2
Maximum core temperature	no data	76 °C
Maximum case temperature (TCase)	73 °C	no data
Number of transistors	774 million	731 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon X3440 and Xeon E5540 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	1	2
Socket	FCLGA1156,LGA1156	FCLGA1366
Power consumption (TDP)	95 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X3440 and Xeon E5540. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	1.0
Hyper-Threading Technology	+	+
Idle States	+	+
Demand Based Switching	+	+
PAE	36 Bit	40 Bit

Security technologies

Xeon X3440 and Xeon E5540 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X3440 and Xeon E5540 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X3440 and Xeon E5540. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-1066, DDR3-1333	DDR3
Maximum memory size	32 GB	144 GB
Max memory channels	2	3
Maximum memory bandwidth	21 GB/s	25.6 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon X3440 and Xeon E5540.

PCIe version	2.0	2.0
PCI Express lanes	16	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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Recency	8 September 2009	30 March 2009
Power consumption (TDP)	95 Watt	80 Watt

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Should you still have questions on choice between Xeon X3440 and Xeon E5540, ask them in Comments section, and we shall answer.

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