EPYC 9554P vs Phenom II X4 955 (125W)

Primary details

Comparing Phenom II X4 955 (125W) and EPYC 9554P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated8
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data5.29
Market segmentDesktop processorServer
Seriesno dataAMD EPYC
Power efficiencyno data18.34
Architecture codenameDeneb (2009−2011)Genoa (2022−2023)
Release date1 April 2009 (15 years ago)10 November 2022 (1 year ago)
Launch price (MSRP)no data$7,104

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Phenom II X4 955 (125W) and EPYC 9554P 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 cores4 (Quad-Core)64 (Tetrahexaconta-Core)
Threads4128
Base clock speed3.2 GHz3.1 GHz
Boost clock speed3.2 GHz3.1 GHz
Multiplierno data31
L1 cache128 KB (per core)4 MB
L2 cache512 KB (per core)64 MB
L3 cache6 MB (shared)256 MB (shared)
Chip lithography45 nm5 nm, 6 nm
Die size258 mm28x 72 mm2
Number of transistors758 million52,560 million
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Phenom II X4 955 (125W) and EPYC 9554P 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 configuration11
SocketAM3SP5
Power consumption (TDP)125 Watt360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Phenom II X4 955 (125W) and EPYC 9554P. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X4 955 (125W) and EPYC 9554P are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X4 955 (125W) and EPYC 9554P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5-4800
Maximum memory sizeno data6 TiB
Maximum memory bandwidthno data460.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)no data

Peripherals

Specifications and connection of peripherals supported by Phenom II X4 955 (125W) and EPYC 9554P.

PCIe version2.05.0
PCI Express lanesno data128

Pros & cons summary


Recency 1 April 2009 10 November 2022
Physical cores 4 64
Threads 4 128
Chip lithography 45 nm 5 nm
Power consumption (TDP) 125 Watt 360 Watt

Phenom II X4 955 (125W) has 188% lower power consumption.

EPYC 9554P, on the other hand, has an age advantage of 13 years, 1500% more physical cores and 3100% more threads, and a 800% more advanced lithography process.

We couldn't decide between Phenom II X4 955 (125W) and EPYC 9554P. We've got no test results to judge.

Note that Phenom II X4 955 (125W) is a desktop processor while EPYC 9554P is a server/workstation one.


Should you still have questions on choice between Phenom II X4 955 (125W) and EPYC 9554P, ask them in Comments section, and we shall answer.

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AMD Phenom II X4 955 (125W)
Phenom II X4 955 (125W)
AMD EPYC 9554P
EPYC 9554P

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