EPYC 9645 vs EPYC 7473X

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Primary details

Comparing EPYC 7473X and EPYC 9645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking85not rated
Place by popularitynot in top-100not in top-100
Market segmentServerServer
Power efficiency14.72no data
Architecture codenameMilan-X (2022)Turin (2024)
Release date22 March 2022 (2 years ago)10 October 2024 (less than a year ago)
Launch price (MSRP)no data$11,048

Detailed specifications

EPYC 7473X 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 cores24 (Tetracosa-Core)96
Threads48192
Base clock speed2.8 GHz2.3 GHz
Boost clock speed3.7 GHz3.7 GHz
L1 cache64K (per core)80 KB (per core)
L2 cache512K (per core)1 MB (per core)
L3 cache768 MB (shared)256 MB (shared)
Chip lithography7 nm3 nm
Die size8x 81 mm2no data
Number of transistors33,200 millionno data
64 bit support-+

Compatibility

Information on EPYC 7473X 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 configuration22
SocketSP3SP5
Power consumption (TDP)240 Watt320 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7473X 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 7473X and EPYC 9645 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7473X and EPYC 9645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by EPYC 7473X and EPYC 9645.

PCIe version4.05.0
PCI Express lanes128128

Pros & cons summary


Recency 22 March 2022 10 October 2024
Physical cores 24 96
Threads 48 192
Chip lithography 7 nm 3 nm
Power consumption (TDP) 240 Watt 320 Watt

EPYC 7473X has 33.3% lower power consumption.

EPYC 9645, on the other hand, has an age advantage of 2 years, 300% more physical cores and 300% more threads, and a 133.3% more advanced lithography process.

We couldn't decide between EPYC 7473X and EPYC 9645. We've got no test results to judge.


Should you still have questions on choice between EPYC 7473X and EPYC 9645, ask them in Comments section, and we shall answer.

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AMD EPYC 7473X
EPYC 7473X
AMD EPYC 9645
EPYC 9645

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