Altrix CX-1621 XT 20-Core LGA1851 Desktop Processor
Processors · Altrix · SKU CX1621-XT · Released 2026 · Updated 2026-10-25
Key facts
| Benchmark index | 53,896 (Processors scale) |
|---|---|
| Category rank | #35,223 |
| Street price | $879 |
| Power | 125 W (TDP) |
| Performance per dollar | 61.32 |
| Released | 2026 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix CX-1621 XT |
| Socket | LGA1851 |
| Cores / threads | 20 cores (8P + 12E) / 20 threads |
| Base clock | 3.6 GHz |
| Max boost clock | 5.6 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 | None (F model) |
| 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
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| Nexora CX-7552 XT 8-Core AM5 Desktop Processor | 35,737 | $339 | Compare |
| Nexora CX-7978 XT 8-Core AM5 Desktop Processor | 42,504 | $409 | Compare |
| Altrix CX-7956 Core 8-Core AM4 Desktop Processor | 44,697 | $559 | Compare |
| Nexora CX-8750 Max 10-Core LGA1700 Desktop Processor | 21,678 | $149 | Compare |
| Nexora CX-7734 Edge 16-Core AM5 Desktop Processor | 46,377 | $609 | Compare |
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Cite this page: Hardware Spec Index, “Altrix CX-1621 XT 20-Core LGA1851 Desktop Processor”, https://vextor7.com/item/94885371 (accessed 2026-10-25).