840 vs 555: comparison
Comparison of 840 and 555: key differences and a full specification table.
Key differences
840 has more cores (4 vs 2) and more threads (4 vs 2).
At the same time, 555 has a lower TDP (80 W vs 95 W).
Both processors match on: base clock (3.2 GHz).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | 840 | 555 |
|---|---|---|
| Cores / threads | 4 / 4 | 2 / 2 |
| TDP | 95 W | 80 W |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | 840 | 555 |
|---|---|---|
| General | ||
| Codename | Phenom | Phenom |
| Segment | Boxed Processor | Boxed Processor |
| Product line | AMD Phenom II X4 | AMD Phenom II X2 Black |
| Product family | AMD Phenom | AMD Phenom |
| Unlocked for overclocking | No | Yes |
| CPU | ||
| Cores | 4 | 2 |
| Threads | 4 | 2 |
| Base clock | 3.2 GHz | 3.2 GHz |
| L1 cache | 512 KB | — |
| L2 cache | 2 MB | 1 MB |
| TDP | 95 W | 80 W |
| Memory | ||
| Memory types | DDR3 | — |
| Graphics | ||
| Has integrated graphics | No | No |
| Package and thermal | ||
| Sockets supported | AM3 | AM3 |
| TJUNCTION | 71 °C | — |
| Identifiers | ||
| Product ID (OEM) | HDX840WFK42GM | HDZ565WFG2DGM |
| Product ID (Box) | HDX840WFGMBOX | HDZ555WFGMBOX |