B99 vs B77: comparison
Comparison of B99 and B77: key differences and a full specification table.
Key differences
B99 has more cores (4 vs 3), more threads (4 vs 3) and a higher base clock (3.3 GHz vs 3.2 GHz).
Both processors match on: 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 | B99 | B77 |
|---|---|---|
| Cores / threads | 4 / 4 | 3 / 3 |
| 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 | B99 | B77 |
|---|---|---|
| General | ||
| Codename | Phenom | Phenom |
| Segment | Desktop | Desktop |
| Product line | AMD Business Class - AMD Phenom X4 Quad-Core | AMD Business Class - AMD Phenom X3 Triple-Core |
| Product family | AMD Phenom | AMD Phenom |
| Unlocked for overclocking | No | No |
| CPU | ||
| Cores | 4 | 3 |
| Threads | 4 | 3 |
| Base clock | 3.3 GHz | 3.2 GHz |
| L2 cache | 2 MB | 1.5 MB |
| TDP | 95 W | 95 W |
| Graphics | ||
| Has integrated graphics | No | No |
| Package and thermal | ||
| Sockets supported | AM3 | AM3 |
| Identifiers | ||
| Product ID (OEM) | HDXB99WFK4DGM | HDXB77WFK3DGM |