Ultra 5 245KF vs Xeon W-2155

Primary details

Comparing Xeon W-2155 and Core Ultra 5 245KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	555	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	7.77	no data
Market segment	Server	Desktop processor
Series	Intel Xeon W	no data
Power efficiency	8.97	no data
Architecture codename	Skylake (server) (2017−2019)	Arrow Lake-S (2024−2025)
Release date	29 August 2017 (7 years ago)	24 October 2024 (recently)
Launch price (MSRP)	$1,440	$294

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon W-2155 and Core Ultra 5 245KF 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	10 (Deca-Core)	14 (Tetradeca-Core)
Threads	20	14
Base clock speed	3.3 GHz	4.2 GHz
Boost clock speed	4.5 GHz	5.2 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	33	no data
L1 cache	640 KB	112 KB (per core)
L2 cache	10 MB	3 MB (per core)
L3 cache	13.75 MB (shared)	24 MB (shared)
Chip lithography	14 nm	3 nm
Die size	484 mm2	243 mm2
Maximum case temperature (TCase)	68 °C	no data
Number of transistors	no data	17,800 million
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Xeon W-2155 and Core Ultra 5 245KF 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	FCLGA2066	1851
Power consumption (TDP)	140 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2155 and Core Ultra 5 245KF. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data
Turbo Boost Max 3.0	-	no data

Security technologies

Xeon W-2155 and Core Ultra 5 245KF technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2155 and Core Ultra 5 245KF are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-2155 and Core Ultra 5 245KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666	DDR5
Maximum memory size	512 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	85.33 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon W-2155 and Core Ultra 5 245KF.

PCIe version	3.0	5.0
PCI Express lanes	48	20

Pros & cons summary

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Recency	29 August 2017	24 October 2024
Physical cores	10	14
Threads	20	14
Chip lithography	14 nm	3 nm
Power consumption (TDP)	140 Watt	125 Watt

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