Xeon E-2456 vs i3-8121U

Primary details

Comparing Core i3-8121U and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1686	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 Core i3	no data
Power efficiency	9.33	17.70
Architecture codename	Coffee Lake-U (2018−2019)	Raptor Lake-S (2023−2024)
Release date	5 May 2018 (6 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

Core i3-8121U 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	2 (Dual-core)	6 (Hexa-Core)
Threads	4	12
Base clock speed	2.2 GHz	3.3 GHz
Boost clock speed	3.2 GHz	5.1 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	16 GT/s
Multiplier	22	no data
L1 cache	64K (per core)	80 KB (per core)
L2 cache	256K (per core)	1.25 MB (per core)
L3 cache	4 MB (shared)	18 MB (shared)
Chip lithography	10 nm	Intel 7 nm
Die size	123 mm2	163 mm2
Maximum core temperature	105 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Core i3-8121U 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	Intel BGA1440	FCLGA1700
Power consumption (TDP)	15 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-8121U and Xeon E-2456. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	-	no data
Enhanced SpeedStep (EIST)	+	+
QuickAssist	-	no data
Speed Shift	+	no data
My WiFi	+	no data
Turbo Boost Technology	2.0	2
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	+	no data
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	-
HD Audio	+	no data
RST	+	no data

Security technologies

Core i3-8121U and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i3-8121U and Xeon E-2456 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-8121U and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5-4800
Maximum memory size	32 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Iris Pro Plus

N/A

Peripherals

Specifications and connection of peripherals supported by Core i3-8121U and Xeon E-2456.

PCIe version	3.0	5
PCI Express lanes	16	16

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	2.76	14.96
Recency	5 May 2018	14 December 2023
Physical cores	2	6
Threads	4	12
Power consumption (TDP)	15 Watt	80 Watt

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Should you still have questions on choice between Core i3-8121U and Xeon E-2456, ask them in Comments section, and we shall answer.

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