Product Compare
Intel Core i9 9940X vs Intel Xeon 658X
| CPU | CPU | |
|---|---|---|
| General Parameters | ||
| Release Date | Oct 2018 | Feb 2026 |
| Manufacturer | Intel | Intel |
| Type | Desktop | Server |
| Instruction Set | x86-64 | |
| Core Architecture | Skylake | Granite Rapids |
| Processor Number | i9-9940X | |
| Integrated Graphics | N/A | N/A |
| Generation | Xeon 600 (Granite Rapids-WS) | |
| Package | ||
| Manufacturing Process | 14 nm | 5 nm |
| Socket | LGA-2066 | Intel Socket 4710 |
| Power Consumption | 165 W | 250 W |
| Peak Operating Temperature | 88 °C | 99°C |
| Foundry | Intel | |
| Die Size | 2x598 mm² | |
| I/O Process Size | 10 nm | |
| I/O Die Size | 2x 241 | |
| Package | FC-LGA18N | |
| CPU Performance | ||
| Performance Cores | 14 | 24 |
| Performance Core Threads | 28 | 48 |
| Performance Core Base Frequency | 3.3 GHz | 3 GHz |
| Performance Core Turbo Frequency | 4.4 GHz | 4.9 GHz |
| Total Core Count | 14 | 24 |
| Total Thread Count | 28 | 48 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 33x | 30.0 |
| L1 Cache | 64 K per core | 112 KB per core |
| L2 Cache | 1 MB per core | 2 MB per core |
| L3 Cache | 20 MB shared | 144 MB shared |
| Unlocked Multiplier | Yes | Yes |
| SMP | 1 | |
| Memory Parameters | ||
| Memory Types | DDR4-2666 | DDR5-6400 |
| Max Memory Size | 128 GB | 4 TB |
| Max Memory Channels | 4 | 8 |
| Max Memory Bandwidth | 85 GB/s | 409.6 GB/s |
| ECC Memory Support | No | Yes |
| Miscellaneous | ||
| Official Website | Official Link ↗ | Official Link ↗ |
| PCIe Version | 3.0 | 5 |
| PCIe Lanes | 44 | 128 |
| Extended Instruction Set | SSE4.1, SSE4.2, AVX-2, AVX-512 | |
| Benchmarks | ||
| Geekbench 6 Single Core | 1328 | 3096 |
| Geekbench 6 Multi Core | 9787 | 29732 |