i5-12400T vs Pentium U5400

Primary details

Comparing Pentium U5400 and Core i5-12400T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	3048	758
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Pentium	no data
Power efficiency	1.84	27.55
Architecture codename	Arrandale (2010−2011)	Alder Lake-S (2022)
Release date	25 May 2010 (14 years ago)	January 2022 (2 years ago)

Detailed specifications

Pentium U5400 and Core i5-12400T 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	2	12
Base clock speed	1.2 GHz	1.8 GHz
Boost clock speed	0.1 GHz	4.2 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	no data
Multiplier	9	no data
L1 cache	128 KB	80K (per core)
L2 cache	512 KB	1.25 MB (per core)
L3 cache	3 MB (shared)	18 MB (shared)
Chip lithography	32 nm	Intel 7 nm
Die size	81+114 mm2	163 mm2
Maximum core temperature	105 °C	100 °C
Number of transistors	382 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Pentium U5400 and Core i5-12400T 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	BGA1288	FCLGA1700
Power consumption (TDP)	18 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium U5400 and Core i5-12400T. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
FMA	+	-
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
PAE	36 Bit	no data
Turbo Boost Max 3.0	no data	-
FDI	+	no data
Fast Memory Access	+	no data
Deep Learning Boost	-	+

Security technologies

Pentium U5400 and Core i5-12400T technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium U5400 and Core i5-12400T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium U5400 and Core i5-12400T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5-4800, DDR4-3200
Maximum memory size	8 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	12.799 GB/s	76.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	Intel UHD Graphics 730
Quick Sync Video	-	+
Clear Video	+	no data
Clear Video HD	no data	+
Graphics max frequency	500 MHz	1.45 GHz
Execution Units	no data	24

Graphics interfaces

Available interfaces and connections of Pentium U5400 and Core i5-12400T integrated GPUs.

Number of displays supported

2

4

Graphics image quality

Maximum display resolutions supported by Pentium U5400 and Core i5-12400T integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096 x 2160 @ 60Hz
Max resolution over eDP	no data	5120 x 3200 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Pentium U5400 and Core i5-12400T integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Pentium U5400 and Core i5-12400T.

PCIe version	2.0	5.0 and 4.0
PCI Express lanes	16	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.

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Pros & cons summary

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Performance score	0.35	10.19
Physical cores	2	6
Threads	2	12
Power consumption (TDP)	18 Watt	35 Watt

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Should you still have questions on choice between Pentium U5400 and Core i5-12400T, ask them in Comments section, and we shall answer.

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