Xeon E-2456 vs Pentium 4405U

Primary details

Comparing Pentium 4405U and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2145	434
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Pentium	no data
Architecture codename	Skylake (2015−2016)	Raptor Lake-S
Release date	1 September 2015 (8 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$161	no data
Current price	$775 (4.8x MSRP)	no data

Detailed specifications

Pentium 4405U 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	2.1 GHz	3.3 GHz
Boost clock speed	2.1 GHz	5.1 GHz
L1 cache	128 KB	80 KB (per core)
L2 cache	512 KB	1.25 MB (per core)
L3 cache	2 MB	18 MB (shared)
Chip lithography	14 nm	Intel 7 nm
Die size	99 mm2	163 mm2
Maximum core temperature	100 °C	100 °C
Number of transistors	1750 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	No	No

Compatibility

Information on Pentium 4405U 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	1
Socket	FCBGA1356	FCLGA1700
Power consumption (TDP)	15 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 4405U 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® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	-	2
Hyper-Threading Technology	+	+
TSX	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	-	no data
Smart Response	+	no data
Turbo Boost Max 3.0	no data	-
Status	Discontinued	Launched

Security technologies

Pentium 4405U and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	+	+
MPX	-	no data
Identity Protection	+	no data
SGX	Yes with Intel® ME	no data
OS Guard	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 4405U and Xeon E-2456 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 4405U and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR5-4800
Maximum memory size	32 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	34.1 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 510	N/A
Max video memory	32 GB	no data
Quick Sync Video	+	no data
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	950 MHz	no data

Graphics interfaces

Available interfaces and connections of Pentium 4405U and Xeon E-2456 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	no data
HDMI	+	no data
DVI	+	no data

Graphics image quality

Maximum display resolutions supported by Pentium 4405U and Xeon E-2456 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Pentium 4405U and Xeon E-2456 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Pentium 4405U and Xeon E-2456.

PCIe version	2.0	5
PCI Express lanes	10	20

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.

Xeon E-2456 outperforms Pentium 4405U by 1001% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	1.37	15.08
Recency	1 September 2015	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 Pentium 4405U and Xeon E-2456, ask them in Comments section, and we shall answer.

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