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| Family | AMD Phenom X3 |
| Model Number | 8400 |
| CPU Part Number | HD8400WCJ3BGD |
| Cores | 3 |
| Threads | 3 (no SMT) |
| Base Clock | 2.1 GHz |
| Turbo Core | Not Supported |
| Multiplier Unlocked | No |
| L1 Cache | 3 x 64 KB (per core) |
| L2 Cache | 3 x 512 KB (per core) |
| L3 Cache | 2 MB Shared |
| Manufacturing Process | 65nm SOI |
| Transistors | 450 million |
| Die Size | 285 mm² |
| Socket | Socket AM2+ |
| Memory Support | DDR2-800 |
| Memory Channels | Dual-Channel |
| ECC Memory Support | No |
| HyperTransport Speed | 3.6 GT/s (1800 MHz) |
| Integrated Graphics | No (dependent on motherboard chipset) |
| TDP | 95 W |
| Instruction Set | MMX, 3DNow!, SSE, SSE2, SSE3, SSE4A, AMD64, NX bit |
| Virtualization | Yes |
| Power Supply | 1.25V |
