Hardware Spec Index

Altrix CX-3991 XT 8-Core AM5 Desktop Processor

Processors · Altrix · SKU CX3991-XT · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index13,610 (Processors scale)
Category rank#41,609
Street price$79
Power105 W (TDP)
Performance per dollar172.28
Released2023

Specifications

BrandAltrix
ModelAltrix CX-3991 XT
SocketAM5
Cores / threads8 cores / 16 threads
Base clock3.9 GHz
Max boost clock4.7 GHz
L3 cache96 MB (3D stacked)
Power105 W TDP (PPT 142 W)
Memory supportDDR5-5200, dual channel (EXPO)
CPU PCIe lanes28× PCIe 5.0 (24 usable)
Integrated graphicsIntegrated graphics (2 CU)
Unlocked multiplierYes
Cooler includedNo

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 XT 8-Core AM5 Desktop Processor”, https://vextor7.com/item/19923959 (accessed 2026-10-21).