Hardware Spec Index

Altrix CX-3947 XT 20-Core LGA1851 Desktop Processor

Processors · Altrix · SKU CX3947-XT · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index52,154 (Processors scale)
Category rank#21,613
Street price$869
Power125 W (TDP)
Performance per dollar60.02
Released2026

Specifications

BrandAltrix
ModelAltrix CX-3947 XT
SocketLGA1851
Cores / threads20 cores (8P + 12E) / 20 threads
Base clock2.8 GHz
Max boost clock5.6 GHz
L3 cache30 MB
Power125 W base / 250 W max turbo
Memory supportDDR5-6400, dual channel (CUDIMM supported)
CPU PCIe lanes20× PCIe 5.0 + 4× PCIe 4.0
Integrated graphicsIntegrated graphics (4 cores)
Unlocked multiplierYes
NPU13 TOPS
Cooler includedNo

Related guides

Intel LGA1851 SocketCPU TDP, PPT and Turbo Power ExplainedPCIe Lanes ExplainedDDR5 Memory ExplainedPCIe 5.0 ExplainedIntel 800 Series Chipsets

Similar Processors

ModelBenchmarkPriceCompare
Nexora CX-7341 Ultra 16-Core AM4 Desktop Processor51,155$599Compare
Veltrix CX-9018 Core 6-Core AM5 Desktop Processor29,642$209Compare
Nexora CX-8748 Edge 24-Core LGA1700 Desktop Processor46,919$549Compare
Altrix CX-6383 Plus 16-Core AM5 Desktop Processor59,600$849Compare
Nexora CX-8587 Plus 8-Core AM4 Desktop Processor36,877$309Compare
Veltrix CX-3142 Prime 14-Core LGA1700 Desktop Processor39,374$389Compare

All Processors · JSON

Cite this page: Hardware Spec Index, “Altrix CX-3947 XT 20-Core LGA1851 Desktop Processor”, https://vextor7.com/item/8554658 (accessed 2026-10-19).