Altrix CX-3991 Pro 8-Core AM5 Desktop Processor
Processors · Altrix · SKU CX3991-PRO · Released 2024 · Updated 2026-10-22
Key facts
| Benchmark index | 50,457 (Processors scale) |
|---|---|
| Category rank | #3,313 |
| Street price | $659 |
| Power | 120 W (TDP) |
| Performance per dollar | 76.57 |
| Released | 2024 |
Specifications
| Brand | Altrix |
|---|---|
| Model | Altrix CX-3991 Pro |
| Socket | AM5 |
| Cores / threads | 8 cores / 16 threads |
| Base clock | 3.6 GHz |
| Max boost clock | 5.5 GHz |
| L3 cache | 96 MB (3D stacked) |
| Power | 120 W TDP (PPT 162 W) |
| Memory support | DDR5-5600, 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
Similar Processors
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Altrix CX-5360 SE 10-Core LGA1851 Desktop Processor | 21,740 | $119 | Compare |
| Nexora CX-2596 Ultra 12-Core AM4 Desktop Processor | 46,208 | $529 | Compare |
| Nexora CX-6599 Pro 8-Core AM5 Desktop Processor | 24,488 | $169 | Compare |
| Veltrix CX-7033 Prime 12-Core AM4 Desktop Processor | 41,286 | $369 | Compare |
| Veltrix CX-7418 Prime 8-Core AM4 Desktop Processor | 18,718 | $99 | Compare |
| Nexora CX-8605 Max 8-Core AM5 Desktop Processor | 23,645 | $149 | Compare |
Cite this page: Hardware Spec Index, “Altrix CX-3991 Pro 8-Core AM5 Desktop Processor”, https://vextor7.com/item/11680589 (accessed 2026-10-22).