Hardware Spec Index

Altrix CX-3991 Plus 8-Core AM5 Desktop Processor

Processors · Altrix · SKU CX3991-PLUS · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index19,975 (Processors scale)
Category rank#48,253
Street price$99
Power65 W (TDP)
Performance per dollar201.77
Released2022

Specifications

BrandAltrix
ModelAltrix CX-3991 Plus
SocketAM5
Cores / threads8 cores / 16 threads
Base clock3.6 GHz
Max boost clock4.9 GHz
L3 cache32 MB
Power65 W TDP (PPT 88 W)
Memory supportDDR5-5200, dual channel (EXPO)
CPU PCIe lanes28× PCIe 5.0 (24 usable)
Integrated graphicsIntegrated graphics (2 CU)
Unlocked multiplierYes
Cooler includedYes (stock air cooler)

Related guides

AMD AM5 SocketCPU TDP, PPT and Turbo Power ExplainedPCIe Lanes ExplainedDDR5 Memory ExplainedPCIe 5.0 ExplainedAMD AM5 Chipsets Compared

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Cite this page: Hardware Spec Index, “Altrix CX-3991 Plus 8-Core AM5 Desktop Processor”, https://vextor7.com/item/90127305 (accessed 2026-10-20).