Hardware Spec Index

Altrix CX-7856 Ultra 20-Core LGA1851 Desktop Processor

Processors · Altrix · SKU CX7856-ULTRA · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index43,197 (Processors scale)
Category rank#35,086
Street price$449
Power125 W (TDP)
Performance per dollar96.21
Released2025

Specifications

BrandAltrix
ModelAltrix CX-7856 Ultra
SocketLGA1851
Cores / threads20 cores (8P + 12E) / 20 threads
Base clock3.7 GHz
Max boost clock5.3 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 graphicsNone (F model)
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-2281 Ti 8-Core AM5 Desktop Processor39,861$359Compare
Veltrix CX-8826 Edge 6-Core AM5 Desktop Processor21,268$99Compare
Altrix CX-7361 Ultra 20-Core LGA1851 Desktop Processor31,479$269Compare
Altrix CX-8603 Ti 6-Core AM4 Desktop Processor14,604$69Compare
Altrix CX-1025 Edge 10-Core LGA1700 Desktop Processor17,379$99Compare
Altrix CX-4694 Edge 8-Core AM5 Desktop Processor29,254$249Compare

All Processors · JSON

Cite this page: Hardware Spec Index, “Altrix CX-7856 Ultra 20-Core LGA1851 Desktop Processor”, https://vextor7.com/item/333126 (accessed 2026-10-20).