Altrix CX-6421 Ultra 8-Core AM5 Desktop Processor
Processors · Altrix · SKU CX6421-ULTRA · Released 2023 · Updated 2026-10-20
Key facts
| Benchmark index | 46,908 (Processors scale) |
|---|---|
| Category rank | #29,409 |
| Street price | $629 |
| Power | 65 W (TDP) |
| Performance per dollar | 74.58 |
| Released | 2023 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix CX-6421 Ultra |
| Socket | AM5 |
| Cores / threads | 8 cores / 16 threads |
| Base clock | 3.7 GHz |
| Max boost clock | 5.5 GHz |
| L3 cache | 96 MB (3D stacked) |
| Power | 65 W TDP (PPT 88 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 | Yes (stock air cooler) |
Related guides
AMD AM5 SocketCPU TDP, PPT and Turbo Power ExplainedPCIe Lanes ExplainedDDR5 Memory ExplainedPCIe 5.0 ExplainedAMD AM5 Chipsets Compared
Similar Processors
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Altrix CX-2111 Ti 12-Core AM4 Desktop Processor | 51,471 | $689 | Compare |
| Veltrix CX-2648 Edge 6-Core AM5 Desktop Processor | 13,742 | $79 | Compare |
| Altrix CX-5423 Ultra 16-Core AM4 Desktop Processor | 48,640 | $609 | Compare |
| Altrix CX-5833 Pro 8-Core AM5 Desktop Processor | 21,122 | $109 | Compare |
| Veltrix CX-9006 Edge 6-Core AM4 Desktop Processor | 20,056 | $129 | Compare |
| Veltrix CX-4456 XT 16-Core AM5 Desktop Processor | 53,940 | $699 | Compare |
Cite this page: Hardware Spec Index, “Altrix CX-6421 Ultra 8-Core AM5 Desktop Processor”, https://vextor7.com/item/7370548 (accessed 2026-10-20).