Ultra 9 285K vs Xeon D-1623N

Primary details

Comparing Xeon D-1623N and Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	53
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	74.35
Market segment	Server	Desktop processor
Series	Intel Xeon D	no data
Power efficiency	no data	32.46
Architecture codename	Broadwell (2015−2019)	Arrow Lake-S (2024−2025)
Release date	2 April 2019 (5 years ago)	24 October 2024 (less than a year ago)
Launch price (MSRP)	$256	$589

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon D-1623N and Core Ultra 9 285K 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	4 (Quad-Core)	24 (Tetracosa-Core)
Threads	8	24
Base clock speed	2.4 GHz	3.7 GHz
Boost clock speed	3.2 GHz	5.7 GHz
Bus type	DMI 2.0	no data
Bus rate	no data	250 MHz
Multiplier	24	no data
L1 cache	256 KB	112 KB (per core)
L2 cache	1 MB	3 MB (per core)
L3 cache	6 MB	36 MB (shared)
Chip lithography	14 nm	3 nm
Die size	246.24 mm2	243 mm2
Maximum core temperature	105 °C	no data
Number of transistors	3200 Million	17,800 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	-	+

Compatibility

Information on Xeon D-1623N and Core Ultra 9 285K 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	FCBGA1667	1851
Power consumption (TDP)	35 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon D-1623N and Core Ultra 9 285K. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	no data
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
QuickAssist	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	-
GPIO	+	no data
AMT	SPS 3.0	no data
Quiet System	-	no data

Security technologies

Xeon D-1623N and Core Ultra 9 285K technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon D-1623N and Core Ultra 9 285K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon D-1623N and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR3	DDR5 Depends on motherboard
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	29.861 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Arc Xe-LPG Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Xeon D-1623N and Core Ultra 9 285K.

PCIe version	2.0/3.0	5.0
PCI Express lanes	32	20
USB revision	2.0/3.0	no data
Total number of SATA ports	6	no data
Max number of SATA 6 Gb/s Ports	6	no data
Number of USB ports	8	no data
Integrated LAN	4x 10 GBE	no data
UART	+	no data

Pros & cons summary

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Recency	2 April 2019	24 October 2024
Physical cores	4	24
Threads	8	24
Chip lithography	14 nm	3 nm
Power consumption (TDP)	35 Watt	125 Watt

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