Xeon 6516P-B vs Ultra 5 245KF

Primary details

Comparing Core Ultra 5 245KF and Xeon 6516P-B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	193	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	82.32	no data
Market segment	Desktop processor	Server
Power efficiency	20.69	no data
Designer	Intel	Intel
Architecture codename	Arrow Lake-S (2024−2025)	Granite Rapids (2024−2025)
Release date	24 October 2024 (less than a year ago)	24 February 2025 (recently)
Launch price (MSRP)	$294	$1,544

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core Ultra 5 245KF and Xeon 6516P-B 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	14 (Tetradeca-Core)	20 (Icosa-Core)
Performance-cores	6	no data
Efficient-cores	8	no data
Threads	14	40
Base clock speed	4.2 GHz	2.3 GHz
Boost clock speed	5.2 GHz	3.5 GHz
L1 cache	192 KB (per core)	112 KB (per core)
L2 cache	3 MB (per core)	2 MB (per core)
L3 cache	24 MB (shared)	80 MB (shared)
Chip lithography	3 nm	5 nm
Die size	243 mm2	598 mm2
Maximum case temperature (TCase)	no data	85 °C
Number of transistors	17,800 million	no data
64 bit support	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core Ultra 5 245KF and Xeon 6516P-B 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	2
Socket	FCLGA1851	Intel BGA 4368
Power consumption (TDP)	125 Watt	145 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 5 245KF and Xeon 6516P-B. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Deep Learning Boost	+	-
Supported AI Software Frameworks	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN	-

Security technologies

Core Ultra 5 245KF and Xeon 6516P-B technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 5 245KF and Xeon 6516P-B are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 245KF and Xeon 6516P-B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-6400	DDR5
Maximum memory size	192 GB	no data
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

N/A

Peripherals

Specifications and connection of peripherals supported by Core Ultra 5 245KF and Xeon 6516P-B.

PCIe version	5.0 and 4.0	5.0
PCI Express lanes	20	32

Pros & cons summary

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Recency	24 October 2024	24 February 2025
Physical cores	14	20
Threads	14	40
Chip lithography	3 nm	5 nm
Power consumption (TDP)	125 Watt	145 Watt

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