EPYC 9645 vs EPYC 9334

Primary details

Comparing EPYC 9334 and EPYC 9645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	62	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	11.32	no data
Market segment	Server	Server
Series	AMD EPYC	no data
Power efficiency	18.40	no data
Architecture codename	Genoa (2022−2023)	Turin (2024)
Release date	10 November 2022 (1 year ago)	10 October 2024 (recently)
Launch price (MSRP)	$2,990	$11,048

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 9334 and EPYC 9645 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	32 (Dotriaconta-Core)	96
Threads	64	192
Base clock speed	2.7 GHz	2.3 GHz
Boost clock speed	2.7 GHz	3.7 GHz
Multiplier	27	no data
L1 cache	2 MB	80 KB (per core)
L2 cache	32 MB	1 MB (per core)
L3 cache	128 MB (shared)	256 MB (shared)
Chip lithography	5 nm, 6 nm	3 nm
Die size	4x 72 mm2	no data
Number of transistors	52,560 million	no data
64 bit support	+	+

Compatibility

Information on EPYC 9334 and EPYC 9645 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	2
Socket	SP5	SP5
Power consumption (TDP)	210 Watt	320 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 9334 and EPYC 9645. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Precision Boost 2	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 9334 and EPYC 9645 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 9334 and EPYC 9645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800	DDR5
Maximum memory size	6 TiB	no data
Maximum memory bandwidth	460.8 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by EPYC 9334 and EPYC 9645.

PCIe version	5.0	5.0
PCI Express lanes	128	128

Pros & cons summary

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Recency	10 November 2022	10 October 2024
Physical cores	32	96
Threads	64	192
Chip lithography	5 nm	3 nm
Power consumption (TDP)	210 Watt	320 Watt

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