EPYC 9745 vs Ultra 5 245K

Primary details

Comparing Core Ultra 5 245K and EPYC 9745 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	174	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	73.83	no data
Market segment	Desktop processor	Server
Power efficiency	20.82	no data
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)	$309	$12,141

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core Ultra 5 245K and EPYC 9745 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)	128
Threads	14	256
Base clock speed	4.2 GHz	2.4 GHz
Boost clock speed	5.2 GHz	3.7 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	3 nm
Die size	243 mm2	no data
Number of transistors	17,800 million	no data
64 bit support	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core Ultra 5 245K and EPYC 9745 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	1851	SP5
Power consumption (TDP)	125 Watt	400 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 5 245K and EPYC 9745. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
TSX	+	-
SIPP	+	-
Precision Boost 2	no data	+

Security technologies

Core Ultra 5 245K and EPYC 9745 technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 5 245K and EPYC 9745 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 245K and EPYC 9745. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR5

DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Arc Xe-LPG Graphics 64EU

N/A

Peripherals

Specifications and connection of peripherals supported by Core Ultra 5 245K and EPYC 9745.

PCIe version	5.0	5.0
PCI Express lanes	20	128

Pros & cons summary

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Physical cores	14	128
Threads	14	256
Power consumption (TDP)	125 Watt	400 Watt

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Should you still have questions on choice between Core Ultra 5 245K and EPYC 9745, ask them in Comments section, and we shall answer.

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