Hardware Spec Index

Altrix CX-8821 Ultra 20-Core LGA1851 Desktop Processor

Processors · Altrix · SKU CX8821-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index43,297 (Processors scale)
Category rank#1,777
Street price$479
Power125 W (TDP)
Performance per dollar90.39
Released2026

Specifications

BrandAltrix
ModelAltrix CX-8821 Ultra
SocketLGA1851
Cores / threads20 cores (8P + 12E) / 20 threads
Base clock2.7 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 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
Veltrix CX-1022 Prime 10-Core LGA1700 Desktop Processor13,797$69Compare
Nexora CX-2796 Pro 14-Core LGA1700 Desktop Processor13,761$69Compare
Veltrix CX-1080 Plus 24-Core LGA1700 Desktop Processor50,324$539Compare
Nexora CX-7717 Pro 16-Core AM5 Desktop Processor49,900$559Compare
Nexora CX-4376 Plus 8-Core AM4 Desktop Processor38,264$399Compare
Nexora CX-4757 XT 16-Core AM4 Desktop Processor54,209$669Compare

All Processors · JSON

Cite this page: Hardware Spec Index, “Altrix CX-8821 Ultra 20-Core LGA1851 Desktop Processor”, https://vextor7.com/item/53668623 (accessed 2026-10-22).