Ultra 5 245KF vs Xeon Silver 4309Y

Primary details

Comparing Xeon Silver 4309Y and Core Ultra 5 245KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	642	174
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	82.64
Market segment	Server	Desktop processor
Power efficiency	10.91	20.96
Architecture codename	Ice Lake-SP (2021)	Arrow Lake-S (2024−2025)
Release date	6 April 2021 (3 years ago)	24 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$294

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Silver 4309Y 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	8 (Octa-Core)	14 (Tetradeca-Core)
Performance-cores	no data	6
Efficient-cores	no data	8
Threads	16	14
Base clock speed	2.8 GHz	4.2 GHz
Boost clock speed	3.6 GHz	5.2 GHz
L1 cache	64K (per core)	112 KB (per core)
L2 cache	1 MB (per core)	3 MB (per core)
L3 cache	12 MB (shared)	24 MB (shared)
Chip lithography	10 nm	3 nm
Die size	no data	243 mm2
Maximum case temperature (TCase)	76 °C	no data
Number of transistors	no data	17,800 million
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Xeon Silver 4309Y 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	2	1
Socket	FCLGA4189	FCLGA1851
Power consumption (TDP)	105 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Silver 4309Y 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	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	no data
TSX	+	+
Idle States	no data	+
Thermal Monitoring	-	+
Deep Learning Boost	+	+
Supported AI Software Frameworks	-	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN

Security technologies

Xeon Silver 4309Y and Core Ultra 5 245KF technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	no data	+
SGX	Yes with Intel® SPS	no data
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Silver 4309Y and Core Ultra 5 245KF are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4309Y and Core Ultra 5 245KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2667	DDR5-6400
Maximum memory size	6 TB	192 GB
Max memory channels	8	2
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 Silver 4309Y and Core Ultra 5 245KF.

PCIe version	4.0	5.0 and 4.0
PCI Express lanes	64	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	12.11	27.68
Recency	6 April 2021	24 October 2024
Physical cores	8	14
Threads	16	14
Chip lithography	10 nm	3 nm
Power consumption (TDP)	105 Watt	125 Watt

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Should you still have questions on choice between Xeon Silver 4309Y and Core Ultra 5 245KF, ask them in Comments section, and we shall answer.

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