Altrix CX-8857 Ultra 20-Core LGA1851 Desktop Processor
Processors · Altrix · SKU CX8857-ULTRA · Released 2025 · Updated 2026-10-26
Key facts
| Benchmark index | 43,391 (Processors scale) |
|---|---|
| Category rank | #43,633 |
| Street price | $419 |
| Power | 125 W (TDP) |
| Performance per dollar | 103.56 |
| Released | 2025 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix CX-8857 Ultra |
| Socket | LGA1851 |
| Cores / threads | 20 cores (8P + 12E) / 20 threads |
| Base clock | 3.0 GHz |
| Max boost clock | 5.3 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 |
|---|---|---|---|
| Veltrix CX-2207 XT 10-Core LGA1700 Desktop Processor | 22,641 | $149 | Compare |
| Altrix CX-1133 Pro 6-Core AM4 Desktop Processor | 30,855 | $259 | Compare |
| Altrix CX-5381 Pro 8-Core AM4 Desktop Processor | 18,829 | $89 | Compare |
| Altrix CX-4878 Core 20-Core LGA1700 Desktop Processor | 27,704 | $199 | Compare |
| Nexora CX-1831 Ultra 8-Core AM5 Desktop Processor | 34,908 | $339 | Compare |
| Altrix CX-5910 Plus 12-Core AM5 Desktop Processor | 48,765 | $609 | Compare |
Cite this page: Hardware Spec Index, “Altrix CX-8857 Ultra 20-Core LGA1851 Desktop Processor”, https://vextor7.com/item/8036094 (accessed 2026-10-26).