EPYC 9255 vs Ryzen 9 7945HX3D

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Primary details

Comparing Ryzen 9 7945HX3D and EPYC 9255 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking94not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopServer
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)no data
Power efficiency62.67no data
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Turin (2024)
Release date27 July 2023 (1 year ago)10 October 2024 (recently)
Launch price (MSRP)no data$2,495

Detailed specifications

Ryzen 9 7945HX3D and EPYC 9255 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 cores16 (Hexadeca-Core)24 (Tetracosa-Core)
Threads3248
Base clock speed2.3 GHz3.25 GHz
Boost clock speed5.4 GHz4.8 GHz
L1 cache64 KB (per core)80 KB (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache128 MB (shared)128 MB (shared)
Chip lithography5 nm4 nm
Die size2x 71 mm24x 70.6 mm2
Maximum core temperature89 °Cno data
Number of transistors17,840 million33,260 million
64 bit support++
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 7945HX3D and EPYC 9255 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 configuration12
SocketFL1SP5
Power consumption (TDP)55 Watt200 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7945HX3D and EPYC 9255. 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 Ryzen 9 7945HX3D and EPYC 9255 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7945HX3D and EPYC 9255. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5-5200DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 610MN/A

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7945HX3D and EPYC 9255.

PCIe version5.05.0
PCI Express lanes28128

Pros & cons summary


Recency 27 July 2023 10 October 2024
Physical cores 16 24
Threads 32 48
Chip lithography 5 nm 4 nm
Power consumption (TDP) 55 Watt 200 Watt

Ryzen 9 7945HX3D has 263.6% lower power consumption.

EPYC 9255, on the other hand, has an age advantage of 1 year, 50% more physical cores and 50% more threads, and a 25% more advanced lithography process.

We couldn't decide between Ryzen 9 7945HX3D and EPYC 9255. We've got no test results to judge.

Be aware that Ryzen 9 7945HX3D is a notebook processor while EPYC 9255 is a server/workstation one.


Should you still have questions on choice between Ryzen 9 7945HX3D and EPYC 9255, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 7945HX3D
Ryzen 9 7945HX3D
AMD EPYC 9255
EPYC 9255

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