Hardware Spec Index

Nexora CX-6643 Ultra 16-Core AM5 Desktop Processor

Processors · Nexora · SKU CX6643-ULTRA · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index52,749 (Processors scale)
Category rank#35,956
Street price$659
Power170 W (TDP)
Performance per dollar80.04
Released2025

Specifications

BrandNexora
ModelNexora CX-6643 Ultra
SocketAM5
Cores / threads16 cores / 32 threads
Base clock3.5 GHz
Max boost clock5.5 GHz
L3 cache64 MB
Power170 W TDP (PPT 230 W)
Memory supportDDR5-5600, 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, “Nexora CX-6643 Ultra 16-Core AM5 Desktop Processor”, https://vextor7.com/item/21783406 (accessed 2026-10-25).