Mobile Pentium III 400 vs Xeon E-2456

Primary details

Comparing Xeon E-2456 and Mobile Pentium III 400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	469	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	92.83	no data
Market segment	Server	Laptop
Power efficiency	17.70	no data
Architecture codename	Raptor Lake-S (2023−2024)	Coppermine (1999−2001)
Release date	14 December 2023 (less than a year ago)	25 October 1999 (25 years ago)
Launch price (MSRP)	$375	$348

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E-2456 and Mobile Pentium III 400 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	6 (Hexa-Core)	1 (Single-Core)
Threads	12	1
Base clock speed	3.3 GHz	no data
Boost clock speed	5.1 GHz	0.4 GHz
Bus rate	16 GT/s	no data
L1 cache	80 KB (per core)	32 KB
L2 cache	1.25 MB (per core)	256 KB
L3 cache	18 MB (shared)	no data
Chip lithography	Intel 7 nm	180 nm
Die size	163 mm2	106 mm2
Maximum core temperature	100 °C	no data
Number of transistors	no data	28 million
64 bit support	+	-

Compatibility

Information on Xeon E-2456 and Mobile Pentium III 400 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	FCLGA1700	Intel Micro-BGA2
Power consumption (TDP)	80 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E-2456 and Mobile Pentium III 400. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon E-2456 and Mobile Pentium III 400 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E-2456 and Mobile Pentium III 400 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E-2456 and Mobile Pentium III 400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800	no data
Maximum memory size	128 GB	no data
Max memory channels	2	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Xeon E-2456 and Mobile Pentium III 400.

PCIe version	5	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	14 December 2023	25 October 1999
Physical cores	6	1
Threads	12	1
Power consumption (TDP)	80 Watt	10 Watt

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Should you still have questions on choice between Xeon E-2456 and Mobile Pentium III 400, ask them in Comments section, and we shall answer.

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