Altrix CX-9991 Prime 20-Core LGA1851 Desktop Processor
Processors · Altrix · SKU CX9991-PRIME · Released 2025 · Updated 2026-10-18
Key facts
| Benchmark index | 30,274 (Processors scale) |
|---|---|
| Category rank | #23,685 |
| Street price | $209 |
| Power | 125 W (TDP) |
| Performance per dollar | 144.85 |
| Released | 2025 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix CX-9991 Prime |
| Socket | LGA1851 |
| Cores / threads | 20 cores (8P + 12E) / 20 threads |
| Base clock | 3.2 GHz |
| Max boost clock | 5.0 GHz |
| L3 cache | 30 MB |
| Power | 125 W base / 250 W max turbo |
| Memory support | DDR5-6400, dual channel (CUDIMM supported) |
| CPU PCIe lanes | 20× PCIe 5.0 + 4× PCIe 4.0 |
| Integrated graphics | Integrated graphics (4 cores) |
| Unlocked multiplier | No |
| NPU | 13 TOPS |
| Cooler included | No |
Related guides
Intel LGA1851 SocketCPU TDP, PPT and Turbo Power ExplainedPCIe Lanes ExplainedDDR5 Memory ExplainedPCIe 5.0 ExplainedIntel 800 Series Chipsets
Similar Processors
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Altrix CX-6465 SE 20-Core LGA1700 Desktop Processor | 48,346 | $629 | Compare |
| Altrix CX-6361 Max 12-Core AM4 Desktop Processor | 45,634 | $639 | Compare |
| Altrix CX-7061 Prime 16-Core AM5 Desktop Processor | 57,967 | $879 | Compare |
| Altrix CX-3131 Max 16-Core AM5 Desktop Processor | 41,804 | $489 | Compare |
| Nexora CX-3395 Ultra 8-Core AM4 Desktop Processor | 18,130 | $99 | Compare |
| Altrix CX-8686 Pro 14-Core LGA1700 Desktop Processor | 27,145 | $179 | Compare |
Cite this page: Hardware Spec Index, “Altrix CX-9991 Prime 20-Core LGA1851 Desktop Processor”, https://vextor7.com/item/78285612 (accessed 2026-10-18).