850 vs 840: comparison
Comparison of 850 and 840: key differences and a full specification table.
Key differences
850 has a higher base clock (3.3 GHz vs 3.2 GHz).
Both processors match on: core count (4), thread count (4), TDP (95 W).
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 | 850 | 840 |
|---|---|---|
| Cores / threads | 4 / 4 | 4 / 4 |
| TDP | 95 W | 95 W |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | 850 | 840 |
|---|---|---|
| General | ||
| Codename | Phenom | Phenom |
| Segment | Boxed Processor | Boxed Processor |
| Product line | AMD Phenom II X4 | AMD Phenom II X4 |
| Product family | AMD Phenom | AMD Phenom |
| Unlocked for overclocking | No | No |
| CPU | ||
| Cores | 4 | 4 |
| Threads | 4 | 4 |
| Base clock | 3.3 GHz | 3.2 GHz |
| L1 cache | 512 KB | 512 KB |
| L2 cache | 2 MB | 2 MB |
| TDP | 95 W | 95 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) | HDX850WFK42GM | HDX840WFK42GM |
| Product ID (Box) | HDX850WFGMBOX | HDX840WFGMBOX |