EPYC 9655 vs Ryzen 9 8945H

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Primary details

Comparing Ryzen 9 8945H and EPYC 9655 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking305not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopServer
SeriesAMD Hawk Point (Zen 4/4c, Ryzen 8040)no data
Power efficiency40.13no data
Architecture codenameHawk Point-HS (Zen 4) (2023−2024)Turin (2024)
Release date6 December 2023 (1 year ago)10 October 2024 (less than a year ago)
Launch price (MSRP)no data$11,852

Detailed specifications

Ryzen 9 8945H and EPYC 9655 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 cores8 (Octa-Core)96
Threads16192
Base clock speed4 GHz2.6 GHz
Boost clock speed5.2 GHz4.5 GHz
L1 cache512 KB80 KB (per core)
L2 cache8 MB1 MB (per core)
L3 cache16 MB384 MB (shared)
Chip lithography4 nm4 nm
Die size178 mm212x 70.6 mm2
Maximum core temperature100 °Cno data
Number of transistorsno data99,780 million
64 bit support++

Compatibility

Information on Ryzen 9 8945H and EPYC 9655 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 configurationno data2
SocketFP7/FP7r2/FP8SP5
Power consumption (TDP)45 Watt400 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 8945H and EPYC 9655. You'll probably need this information if you require some particular technology.

Instruction set extensionsRyzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SMEno data
AES-NI++
FMA+-
AVX++
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 8945H and EPYC 9655 are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 8945H and EPYC 9655. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 780M ( - 2800 MHz)N/A

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 8945H and EPYC 9655.

PCIe versionno data5.0
PCI Express lanesno data128

Pros & cons summary


Recency 6 December 2023 10 October 2024
Physical cores 8 96
Threads 16 192
Power consumption (TDP) 45 Watt 400 Watt

Ryzen 9 8945H has 788.9% lower power consumption.

EPYC 9655, on the other hand, has an age advantage of 10 months, and 1100% more physical cores and 1100% more threads.

We couldn't decide between Ryzen 9 8945H and EPYC 9655. We've got no test results to judge.

Be aware that Ryzen 9 8945H is a notebook processor while EPYC 9655 is a server/workstation one.


Should you still have questions on choice between Ryzen 9 8945H and EPYC 9655, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 8945H
Ryzen 9 8945H
AMD EPYC 9655
EPYC 9655

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Community ratings

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3.5 10 votes

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3.1 16 votes

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