Atom Z3740 vs Xeon W3540

Primary details

Comparing Xeon W3540 and Atom Z3740 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1841	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.42	no data
Market segment	Server	Laptop
Architecture codename	Bloomfield (2008−2010)	Bay Trail-T (2013−2014)
Release date	March 2009 (15 years ago)	27 September 2013 (10 years ago)
Launch price (MSRP)	$699	$32
Current price	$299 (0.4x MSRP)	$233 (7.3x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon W3540 and Atom Z3740 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	4
Base clock speed	2.93 GHz	1.33 GHz
Boost clock speed	3.2 GHz	1.86 GHz
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	512K (per core)
L3 cache	8 MB (shared)	0 KB
Chip lithography	45 nm	22 nm
Die size	263 mm2	no data
Maximum core temperature	68 °C	90 °C
Number of transistors	731 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon W3540 and Atom Z3740 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	1
Socket	FCLGA1366	UTFCBGA1380
Power consumption (TDP)	130 Watt	2 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W3540 and Atom Z3740. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon W3540 and Atom Z3740 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	no data	+
Identity Protection	no data	+
Anti-Theft	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W3540 and Atom Z3740 are enumerated here.

VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W3540 and Atom Z3740. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	24 GB	4 GB
Max memory channels	3	2
Maximum memory bandwidth	25.6 GB/s	17.1 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® HD Graphics for Intel Atom® Processor Z3700 Series
Quick Sync Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	667 MHz

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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Pros & cons summary

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Threads	8	4
Cost	$699	$32
Chip lithography	45 nm	22 nm
Power consumption (TDP)	130 Watt	2 Watt

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Should you still have questions on choice between Xeon W3540 and Atom Z3740, ask them in Comments section, and we shall answer.

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