Hardware Spec Index

Altrix CX-8991 Ultra 8-Core AM5 Desktop Processor

Processors · Altrix · SKU CX8991-ULTRA · Released 2023 · Updated 2026-10-25

Key facts

Benchmark index35,745 (Processors scale)
Category rank#37,061
Street price$299
Power120 W (TDP)
Performance per dollar119.55
Released2023

Specifications

BrandAltrix
ModelAltrix CX-8991 Ultra
SocketAM5
Cores / threads8 cores / 16 threads
Base clock3.6 GHz
Max boost clock5.2 GHz
L3 cache32 MB
Power120 W TDP (PPT 162 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-8991 Ultra 8-Core AM5 Desktop Processor”, https://vextor7.com/item/32938430 (accessed 2026-10-25).