Xeon E5420 vs Atom C3558

Primary details

Comparing Atom C3558 and Xeon E5420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2125	2283
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.47	no data
Market segment	Server	Server
Series	Intel Atom	no data
Power efficiency	9.05	1.50
Architecture codename	Goldmont (2016−2017)	no data
Release date	15 August 2017 (7 years ago)	1 October 2007 (17 years ago)
Launch price (MSRP)	$86	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Atom C3558 and Xeon E5420 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	2.2 GHz	2.5 GHz
Boost clock speed	2.2 GHz	no data
Multiplier	22	no data
L1 cache	224 KB	no data
L2 cache	8 MB	no data
L3 cache	8 MB	12 MB L2 Cache
Chip lithography	14 nm	45 nm
Maximum core temperature	83 °C	67 °C
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	0.85V-1.35V

Compatibility

Information on Atom C3558 and Xeon E5420 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 (Uniprocessor)	no data
Socket	FCBGA1310	LGA771
Power consumption (TDP)	16 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3558 and Xeon E5420. You'll probably need this information if you require some particular technology.

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

Security technologies

Atom C3558 and Xeon E5420 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	-
EDB	+	+
Secure Boot	+	no data
Secure Key	+	no data
SGX	-	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3558 and Xeon E5420 are enumerated here.

VT-d	+	no data
VT-x	+	+
EPT	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3558 and Xeon E5420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4: 2133	no data
Maximum memory size	256 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	29.871 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Atom C3558 and Xeon E5420.

PCIe version	3	no data
PCI Express lanes	12	no data
USB revision	3	no data
Total number of SATA ports	12	no data
Max number of SATA 6 Gb/s Ports	12	no data
Number of USB ports	8	no data
Integrated LAN	2x10/2.5/1 GBE + 2x2.5/1 GBE	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	1.53	1.27
Recency	15 August 2017	1 October 2007
Chip lithography	14 nm	45 nm
Power consumption (TDP)	16 Watt	80 Watt

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Should you still have questions on choice between Atom C3558 and Xeon E5420, ask them in Comments section, and we shall answer.

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