Ryzen 9 9955HX3D vs FX-8320

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Aggregate performance score

FX-8320
2012
8 cores / 8 threads, 125 Watt
3.39
Ryzen 9 9955HX3D
2025
16 cores / 32 threads, 55 Watt
38.85
+1046%

Ryzen 9 9955HX3D outperforms FX-8320 by a whopping 1046% based on our aggregate benchmark results.

Primary details

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

Place in the ranking171387
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataAMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency2.6268.14
DesignerAMDAMD
Architecture codenameVishera (2012−2015)Fire Range-HX (Zen 5) (2025)
Release date23 October 2012 (12 years ago)6 January 2025 (less than a year ago)

Detailed specifications

FX-8320 and Ryzen 9 9955HX3D 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)16 (Hexadeca-Core)
Threads832
Base clock speed3.5 GHzno data
Boost clock speed4 GHz5.4 GHz
L1 cacheno data1.3 MB
L2 cache8192 KB16 MB
L3 cacheno data128 MB
Chip lithography32 nmno data
Die size315 mm2no data
Maximum core temperature61 °Cno data
Number of transistors1,200 millionno data
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-
P0 Vcore voltageMin: 1.2 V - Max: 1.4 Vno data

Compatibility

Information on FX-8320 and Ryzen 9 9955HX3D 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
SocketAM3+no data
Power consumption (TDP)125 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-8320 and Ryzen 9 9955HX3D. You'll probably need this information if you require some particular technology.

AES-NI+-
FMA+-
AVX+-

Virtualization technologies

Virtual machine speed-up technologies supported by FX-8320 and Ryzen 9 9955HX3D are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-8320 and Ryzen 9 9955HX3D. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon 610M ( - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by FX-8320 and Ryzen 9 9955HX3D.

PCIe versionn/ano 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.

FX-8320 3.39
Ryzen 9 9955HX3D 38.85
+1046%

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.

FX-8320 5455
Ryzen 9 9955HX3D 62459
+1045%

Gaming performance

Pros & cons summary


Performance score 3.39 38.85
Recency 23 October 2012 6 January 2025
Physical cores 8 16
Threads 8 32
Power consumption (TDP) 125 Watt 55 Watt

Ryzen 9 9955HX3D has a 1046% higher aggregate performance score, an age advantage of 12 years, 100% more physical cores and 300% more threads, and 127.3% lower power consumption.

The AMD Ryzen 9 9955HX3D is our recommended choice as it beats the AMD FX-8320 in performance tests.

Note that FX-8320 is a desktop processor while Ryzen 9 9955HX3D is a notebook one.

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AMD FX-8320
FX-8320
AMD Ryzen 9 9955HX3D
Ryzen 9 9955HX3D

Other comparisons

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Community ratings

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


4.2 1531 votes

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