Altrix CX-3657 Pro 20-Core LGA1851 Desktop Processor
Processors · Altrix · SKU CX3657-PRO · Released 2025 · Updated 2026-10-24
Key facts
| Benchmark index | 32,866 (Processors scale) |
|---|---|
| Category rank | #9,755 |
| Street price | $309 |
| Power | 125 W (TDP) |
| Performance per dollar | 106.36 |
| Released | 2025 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix CX-3657 Pro |
| Socket | LGA1851 |
| Cores / threads | 20 cores (8P + 12E) / 20 threads |
| Base clock | 3.1 GHz |
| Max boost clock | 5.1 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
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| Nexora CX-2659 Ultra 6-Core AM4 Desktop Processor | 26,146 | $169 | Compare |
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| Altrix CX-3454 Pro 8-Core AM4 Desktop Processor | 26,396 | $209 | Compare |
| Altrix CX-4848 Pro 8-Core AM5 Desktop Processor | 30,803 | $219 | Compare |
| Nexora CX-6411 XT 20-Core LGA1851 Desktop Processor | 56,453 | $859 | Compare |
Cite this page: Hardware Spec Index, “Altrix CX-3657 Pro 20-Core LGA1851 Desktop Processor”, https://vextor7.com/item/9816489 (accessed 2026-10-24).