Hardware Spec Index

Altrix CX-9851 Ultra 12-Core AM5 Desktop Processor

Processors · Altrix · SKU CX9851-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index32,136 (Processors scale)
Category rank#2,790
Street price$279
Power170 W (TDP)
Performance per dollar115.18
Released2023

Specifications

BrandAltrix
ModelAltrix CX-9851 Ultra
SocketAM5
Cores / threads12 cores / 24 threads
Base clock3.9 GHz
Max boost clock5.1 GHz
L3 cache64 MB
Power170 W TDP (PPT 230 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-9851 Ultra 12-Core AM5 Desktop Processor”, https://vextor7.com/item/3208944 (accessed 2026-10-19).