Nexora CX-8643 Prime 20-Core LGA1700 Desktop Processor
Processors · Nexora · SKU CX8643-PRIME · Released 2021 · Updated 2026-10-19
Key facts
| Benchmark index | 42,522 (Processors scale) |
|---|---|
| Category rank | #19,020 |
| Street price | $499 |
| Power | 125 W (TDP) |
| Performance per dollar | 85.21 |
| Released | 2021 |
Specifications
| Brand | Nexora |
|---|---|
| Model | Nexora CX-8643 Prime |
| Socket | LGA1700 |
| Cores / threads | 20 cores (8P + 12E) / 28 threads |
| Base clock | 2.9 GHz |
| Max boost clock | 5.4 GHz |
| L3 cache | 36 MB |
| Power | 125 W base / 253 W max turbo |
| Memory support | DDR5-5600 or DDR4-3200, dual channel |
| CPU PCIe lanes | 16× PCIe 5.0 + 4× PCIe 4.0 |
| Integrated graphics | Integrated graphics (32 EU) |
| Unlocked multiplier | No |
| Cooler included | No |
Related guides
Intel LGA1700 SocketCPU TDP, PPT and Turbo Power ExplainedPCIe Lanes ExplainedDDR5 Memory ExplainedPCIe 5.0 ExplainedAMD AM5 Socket
Similar Processors
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Nexora CX-5625 Ti 6-Core AM5 Desktop Processor | 18,149 | $109 | Compare |
| Altrix CX-3515 Ti 6-Core AM5 Desktop Processor | 14,330 | $69 | Compare |
| Veltrix CX-8217 Prime 16-Core AM5 Desktop Processor | 43,464 | $429 | Compare |
| Nexora CX-2919 Prime 14-Core LGA1851 Desktop Processor | 23,453 | $149 | Compare |
| Veltrix CX-5036 Ultra 8-Core AM4 Desktop Processor | 30,024 | $189 | Compare |
| Altrix CX-5897 Ti 24-Core LGA1851 Desktop Processor | 53,631 | $629 | Compare |
Cite this page: Hardware Spec Index, “Nexora CX-8643 Prime 20-Core LGA1700 Desktop Processor”, https://vextor7.com/item/3335339 (accessed 2026-10-19).