Altrix CX-2638 Ultra 20-Core LGA1851 Desktop Processor
Processors · Altrix · SKU CX2638-ULTRA · Released 2026 · Updated 2026-10-26
Key facts
| Benchmark index | 50,709 (Processors scale) |
|---|---|
| Category rank | #34,367 |
| Street price | $749 |
| Power | 125 W (TDP) |
| Performance per dollar | 67.70 |
| Released | 2026 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix CX-2638 Ultra |
| Socket | LGA1851 |
| Cores / threads | 20 cores (8P + 12E) / 20 threads |
| Base clock | 3.7 GHz |
| Max boost clock | 5.5 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 | Yes |
| 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-5555 Ti 16-Core AM4 Desktop Processor | 45,098 | $509 | Compare |
| Nexora CX-4922 SE 8-Core AM4 Desktop Processor | 38,813 | $359 | Compare |
| Nexora CX-6140 Ultra 10-Core LGA1700 Desktop Processor | 18,312 | $109 | Compare |
| Veltrix CX-8322 Ultra 8-Core AM4 Desktop Processor | 46,983 | $529 | Compare |
| Altrix CX-3925 Edge 14-Core LGA1700 Desktop Processor | 26,605 | $159 | Compare |
| Nexora CX-8105 Edge 20-Core LGA1851 Desktop Processor | 59,600 | $849 | Compare |
Cite this page: Hardware Spec Index, “Altrix CX-2638 Ultra 20-Core LGA1851 Desktop Processor”, https://vextor7.com/item/98025535 (accessed 2026-10-26).