Opteron X3421 vs Ryzen Threadripper PRO 9995WX

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Aggregate performance score

Ryzen Threadripper PRO 9995WX
2025
96 cores / 192 threads, 350 Watt
43.81
+2037%
Opteron X3421
2017
4 cores / 4 threads, 15 Watt
2.05

Ryzen Threadripper PRO 9995WX outperforms Opteron X3421 by a whopping 2037% based on our aggregate benchmark results.

Primary details

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

Place in the ranking582048
Place by popularitynot in top-100not in top-100
Market segmentServerWorkstation
Power efficiency12.0713.18
DesignerAMDAMD
ManufacturerTSMCGlobalFoundries
Architecture codenameShimada Peak (2025)Excavator (2017−2018)
Release dateJuly 202510 June 2017 (7 years ago)

Detailed specifications

Ryzen Threadripper PRO 9995WX 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 cores964 (Quad-Core)
Threads1924
Base clock speed2.5 GHz2.1 GHz
Boost clock speed5.4 GHz3.4 GHz
L1 cache64 KB (per core)160 KB
L2 cache1 MB (per core)2 MB (shared)
L3 cache384 MB (shared)no data
Chip lithography4 nm28 nm
Die size12x 70.6 mm2250 mm2
Maximum case temperature (TCase)no data82 °C
Number of transistors99,780 million3,100 million
64 bit support++
Unlocked multiplier+-

Compatibility

Information on Ryzen Threadripper PRO 9995WX 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
SocketsTR5FP4
Power consumption (TDP)350 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper PRO 9995WX 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 Threadripper PRO 9995WX and Opteron X3421 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 9995WX 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 cardN/ARadeon Rx Series 8CU

Peripherals

Specifications and connection of peripherals supported by Ryzen Threadripper PRO 9995WX and Opteron X3421.

PCIe version5.03.0
PCI Express lanes1368

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 Threadripper PRO 9995WX 43.81
+2037%
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 Threadripper PRO 9995WX 70438
+2035%
Opteron X3421 3299

Gaming performance

Pros & cons summary


Performance score 43.81 2.05
Physical cores 96 4
Threads 192 4
Chip lithography 4 nm 28 nm
Power consumption (TDP) 350 Watt 15 Watt

Ryzen Threadripper PRO 9995WX has a 2037.1% higher aggregate performance score, 2300% more physical cores and 4700% more threads, and a 600% more advanced lithography process.

Opteron X3421, on the other hand, has 2233.3% lower power consumption.

The AMD Ryzen Threadripper PRO 9995WX is our recommended choice as it beats the AMD Opteron X3421 in performance tests.

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AMD Ryzen Threadripper PRO 9995WX
Ryzen Threadripper PRO 9995WX
AMD Opteron X3421
Opteron X3421

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