Altrix CX-8421 Ultra 8-Core AM5 Desktop Processor
Processors · Altrix · SKU CX8421-ULTRA · Released 2022 · Updated 2026-10-20
Key facts
| Benchmark index | 44,264 (Processors scale) |
|---|---|
| Category rank | #718 |
| Street price | $479 |
| Power | 105 W (TDP) |
| Performance per dollar | 92.41 |
| Released | 2022 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix CX-8421 Ultra |
| Socket | AM5 |
| Cores / threads | 8 cores / 16 threads |
| Base clock | 3.6 GHz |
| Max boost clock | 5.3 GHz |
| L3 cache | 32 MB |
| Power | 105 W TDP (PPT 142 W) |
| Memory support | DDR5-5200, dual channel (EXPO) |
| CPU PCIe lanes | 28× PCIe 5.0 (24 usable) |
| Integrated graphics | Integrated graphics (2 CU) |
| Unlocked multiplier | Yes |
| Cooler included | No |
Related guides
AMD AM5 SocketCPU TDP, PPT and Turbo Power ExplainedPCIe Lanes ExplainedDDR5 Memory ExplainedPCIe 5.0 ExplainedAMD AM5 Chipsets Compared
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| Veltrix CX-2617 Ultra 8-Core AM5 Desktop Processor | 19,576 | $109 | Compare |
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| Altrix CX-3287 Prime 14-Core LGA1851 Desktop Processor | 39,586 | $459 | Compare |
| Altrix CX-3050 Ultra 12-Core AM4 Desktop Processor | 48,406 | $629 | Compare |
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Cite this page: Hardware Spec Index, “Altrix CX-8421 Ultra 8-Core AM5 Desktop Processor”, https://vextor7.com/item/796330 (accessed 2026-10-20).