Opteron X3421 vs Ryzen 9 8940HX

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Aggregate performance score

Ryzen 9 8940HX
2025
16 cores / 32 threads, 55 Watt
34.23
+1570%
Opteron X3421
2017
4 cores / 4 threads, 15 Watt
2.05

Ryzen 9 8940HX outperforms Opteron X3421 by a whopping 1570% based on our aggregate benchmark results.

Primary details

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

Place in the ranking1352048
Place by popularitynot in top-100not in top-100
Market segmentLaptopWorkstation
Power efficiency60.0413.18
DesignerAMDAMD
ManufacturerTSMCGlobalFoundries
Architecture codenameDragon Range (2025)Excavator (2017−2018)
Release date23 April 2025 (less than a year ago)10 June 2017 (7 years ago)

Detailed specifications

Ryzen 9 8940HX and Opteron X3421 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)4 (Quad-Core)
Threads324
Base clock speed2.4 GHz2.1 GHz
Boost clock speed5.3 GHz3.4 GHz
L1 cache64 KB (per core)160 KB
L2 cache1 MB (per core)2 MB (shared)
L3 cache64 MB (shared)no data
Chip lithography5 nm28 nm
Die size2x 71 mm2250 mm2
Maximum case temperature (TCase)no data82 °C
Number of transistors13,140 million3,100 million
64 bit support++
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 8940HX and Opteron X3421 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
SocketFL1FP4
Power consumption (TDP)55 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 8940HX and Opteron X3421. You'll probably need this information if you require some particular technology.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 8940HX and Opteron X3421 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 8940HX and Opteron X3421. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR4

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 610MRadeon Rx Series 8CU

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 8940HX and Opteron X3421.

PCIe version5.03.0
PCI Express lanes288

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.

Ryzen 9 8940HX 34.23
+1570%
Opteron X3421 2.05

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.

Ryzen 9 8940HX 55027
+1568%
Opteron X3421 3299

Gaming performance

Pros & cons summary


Performance score 34.23 2.05
Recency 23 April 2025 10 June 2017
Physical cores 16 4
Threads 32 4
Chip lithography 5 nm 28 nm
Power consumption (TDP) 55 Watt 15 Watt

Ryzen 9 8940HX has a 1569.8% higher aggregate performance score, an age advantage of 7 years, 300% more physical cores and 700% more threads, and a 460% more advanced lithography process.

Opteron X3421, on the other hand, has 266.7% lower power consumption.

The AMD Ryzen 9 8940HX is our recommended choice as it beats the AMD Opteron X3421 in performance tests.

Be aware that Ryzen 9 8940HX is a notebook processor while Opteron X3421 is a server/workstation one.

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AMD Ryzen 9 8940HX
Ryzen 9 8940HX
AMD Opteron X3421
Opteron X3421

Other comparisons

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Community ratings

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