EPYC 9355P vs Ultra 5 245K

Primary details

Comparing Core Ultra 5 245K and EPYC 9355P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	182	19
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	75.69	16.93
Market segment	Desktop processor	Server
Power efficiency	20.80	20.16
Architecture codename	Arrow Lake-S (2024−2025)	Turin (2024)
Release date	24 October 2024 (less than a year ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	$319	$2,998

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 5 245K has 347% better value for money than EPYC 9355P.

Detailed specifications

Core Ultra 5 245K and EPYC 9355P 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)	32 (Dotriaconta-Core)
Performance-cores	6	no data
Efficient-cores	8	no data
Threads	14	64
Base clock speed	4.2 GHz	3.55 GHz
Boost clock speed	5.2 GHz	4.4 GHz
Bus rate	159 MHz	no data
L1 cache	112 KB (per core)	80 KB (per core)
L2 cache	3 MB (per core)	1 MB (per core)
L3 cache	24 MB (shared)	256 MB (shared)
Chip lithography	3 nm	4 nm
Die size	243 mm2	8x 70.6 mm2
Number of transistors	17,800 million	66,520 million
64 bit support	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core Ultra 5 245K and EPYC 9355P 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	1
Socket	FCLGA1851	SP5
Power consumption (TDP)	125 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 5 245K and EPYC 9355P. 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	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Idle States	+	no data
Thermal Monitoring	+	-
SIPP	+	-
Precision Boost 2	no data	+
Deep Learning Boost	+	-
Supported AI Software Frameworks	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN	-

Security technologies

Core Ultra 5 245K and EPYC 9355P technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 5 245K and EPYC 9355P are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 245K and EPYC 9355P. 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
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Graphics	N/A
Quick Sync Video	+	-
Graphics max frequency	1.9 GHz	no data

Graphics interfaces

Available interfaces and connections of Core Ultra 5 245K and EPYC 9355P integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core Ultra 5 245K and EPYC 9355P integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL)	no data
Max resolution over eDP	4K @ 60Hz	no data
Max resolution over DisplayPort	8K @ 60Hz	no data

Graphics API support

APIs supported by Core Ultra 5 245K and EPYC 9355P integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core Ultra 5 245K and EPYC 9355P.

PCIe version	5.0 and 4.0	5.0
PCI Express lanes	20	128

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	27.26	59.20
Physical cores	14	32
Threads	14	64
Chip lithography	3 nm	4 nm
Power consumption (TDP)	125 Watt	280 Watt

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Should you still have questions on choice between Core Ultra 5 245K and EPYC 9355P, ask them in Comments section, and we shall answer.

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