Hardware Spec Index

Altrix CX-4643 Ultra 8-Core AM5 Desktop Processor

Processors · Altrix · SKU CX4643-ULTRA · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index23,007 (Processors scale)
Category rank#18,336
Street price$139
Power65 W (TDP)
Performance per dollar165.52
Released2025

Specifications

BrandAltrix
ModelAltrix CX-4643 Ultra
SocketAM5
Cores / threads8 cores / 16 threads
Base clock4.1 GHz
Max boost clock4.9 GHz
L3 cache96 MB (3D stacked)
Power65 W TDP (PPT 88 W)
Memory supportDDR5-5600, 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-4643 Ultra 8-Core AM5 Desktop Processor”, https://vextor7.com/item/56582615 (accessed 2026-10-26).