Ultra 9 285T vs Xeon L5420

Primary details

Comparing Xeon L5420 and Core Ultra 9 285T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2240	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Power efficiency	2.54	no data
Architecture codename	no data	Arrow Lake-S (2024−2025)
Release date	1 January 2008 (16 years ago)	January 2025

Detailed specifications

Xeon L5420 and Core Ultra 9 285T 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	no data	24 (Tetracosa-Core)
Threads	no data	24
Base clock speed	2.5 GHz	1.4 GHz
Boost clock speed	no data	5.4 GHz
L1 cache	no data	112 KB (per core)
L2 cache	no data	3 MB (per core)
L3 cache	12 MB L2 Cache	36 MB (shared)
Chip lithography	45 nm	3 nm
Die size	no data	243 mm2
Maximum core temperature	57 °C	no data
Number of transistors	no data	17,800 million
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon L5420 and Core Ultra 9 285T 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	no data	1
Socket	LGA771	1851
Power consumption (TDP)	50 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon L5420 and Core Ultra 9 285T. You'll probably need this information if you require some particular technology.

AES-NI	-	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	+	no data

Security technologies

Xeon L5420 and Core Ultra 9 285T technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon L5420 and Core Ultra 9 285T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon L5420 and Core Ultra 9 285T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR5 Depends on motherboard

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Arc Xe2 Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Xeon L5420 and Core Ultra 9 285T.

PCIe version	no data	5.0
PCI Express lanes	no data	20

Pros & cons summary

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Chip lithography	45 nm	3 nm
Power consumption (TDP)	50 Watt	35 Watt

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