Xeon E-2456 vs Atom Z650

Primary details

Comparing Atom Z650 and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	469
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	93.22
Market segment	Laptop	Server
Series	Intel Atom	no data
Power efficiency	no data	17.70
Architecture codename	Lincroft (2010−2011)	Raptor Lake-S (2023−2024)
Release date	11 April 2011 (13 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	no data	$375

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Atom Z650 and Xeon E-2456 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	1 (Single-Core)	6 (Hexa-Core)
Threads	2	12
Base clock speed	1.2 GHz	3.3 GHz
Boost clock speed	1.2 GHz	5.1 GHz
Bus type	cDMI	no data
Bus rate	400 MT/s	16 GT/s
Multiplier	8	no data
L1 cache	64K (per core)	80 KB (per core)
L2 cache	512 KB (per core)	1.25 MB (per core)
L3 cache	0 KB	18 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	65 mm2	163 mm2
Maximum core temperature	90 °C	100 °C
Number of transistors	140 million	no data
64 bit support	-	+
Windows 11 compatibility	-	no data

Compatibility

Information on Atom Z650 and Xeon E-2456 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)	1
Socket	T-PBGA518	FCLGA1700
Power consumption (TDP)	3 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z650 and Xeon E-2456. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE, Intel® SSE2, Intel® SSE3	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	no data	2
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Turbo Boost Max 3.0	no data	-

Security technologies

Atom Z650 and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z650 and Xeon E-2456 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z650 and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR5-4800
Maximum memory size	2.93 GB	128 GB
Max memory channels	1	2
Maximum memory bandwidth	3.2 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

PowerVR SGX535

N/A

Graphics interfaces

Available interfaces and connections of Atom Z650 and Xeon E-2456 integrated GPUs.

LVDS

+

no data

Peripherals

Specifications and connection of peripherals supported by Atom Z650 and Xeon E-2456.

PCIe version	no data	5
PCI Express lanes	no data	16
PCI support	-	no data

Pros & cons summary

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Recency	11 April 2011	14 December 2023
Physical cores	1	6
Threads	2	12
Power consumption (TDP)	3 Watt	80 Watt

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Should you still have questions on choice between Atom Z650 and Xeon E-2456, ask them in Comments section, and we shall answer.

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