Ryzen 9 9955HX vs EPYC 4464P

VS

Aggregate performance score

EPYC 4464P
2024
12 cores / 24 threads, 105 Watt
30.00
Ryzen 9 9955HX
2025
16 cores / 32 threads, 55 Watt
36.01
+20%

Ryzen 9 9955HX outperforms EPYC 4464P by a significant 20% based on our aggregate benchmark results.

Primary details

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

Place in the ranking171115
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation70.15no data
Market segmentServerLaptop
Seriesno dataAMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency27.4062.79
DesignerAMDAMD
ManufacturerTSMCno data
Architecture codenameRaphael (2023−2025)Fire Range-HX (Zen 5) (2025)
Release date21 May 2024 (less than a year ago)6 January 2025 (less than a year ago)
Launch price (MSRP)$399no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Performance to price scatter graph

Detailed specifications

EPYC 4464P and Ryzen 9 9955HX 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 cores12 (Dodeca-Core)16 (Hexadeca-Core)
Threads2432
Base clock speed3.7 GHzno data
Boost clock speed5.4 GHz5.4 GHz
L1 cache64 KB (per core)1.3 MB
L2 cache1 MB (per core)16 MB
L3 cache32 MB (shared)64 MB
Chip lithography5 nmno data
Die size2x 71 mm2no data
Maximum case temperature (TCase)61 °Cno data
Number of transistors13,140 millionno data
64 bit support++

Compatibility

Information on EPYC 4464P and Ryzen 9 9955HX 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 configuration1no data
SocketAM5no data
Power consumption (TDP)105 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 4464P and Ryzen 9 9955HX. You'll probably need this information if you require some particular technology.

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

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 4464P and Ryzen 9 9955HX are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 4464P and Ryzen 9 9955HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon GraphicsAMD Radeon 610M ( - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by EPYC 4464P and Ryzen 9 9955HX.

PCIe version5.0no data
PCI Express lanes28no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating.

EPYC 4464P 30.00
Ryzen 9 9955HX 36.01
+20%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.

EPYC 4464P 48123
Ryzen 9 9955HX 57771
+20%

Gaming performance

Pros & cons summary


Performance score 30.00 36.01
Integrated graphics card 1.87 2.70
Recency 21 May 2024 6 January 2025
Physical cores 12 16
Threads 24 32
Power consumption (TDP) 105 Watt 55 Watt

Ryzen 9 9955HX has a 20% higher aggregate performance score, 44.4% faster integrated GPU, an age advantage of 7 months, 33.3% more physical cores and 33.3% more threads, and 90.9% lower power consumption.

The AMD Ryzen 9 9955HX is our recommended choice as it beats the AMD EPYC 4464P in performance tests.

Be aware that EPYC 4464P is a server/workstation processor while Ryzen 9 9955HX is a notebook one.

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AMD EPYC 4464P
EPYC 4464P
AMD Ryzen 9 9955HX
Ryzen 9 9955HX

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.5 25 votes

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4.3 4 votes

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