Intel Core2 Extreme X7900 vs Intel Core2 Extreme X7800: comparison
Comparison of Intel Core2 Extreme X7900 and Intel Core2 Extreme X7800: key differences and a full specification table.
Key differences
Intel Core2 Extreme X7900 has a higher base clock (2.8 GHz vs 2.6 GHz).
Both processors match on: core count (2), thread count (2), TDP (44 W), process node (65 nm).
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 | Intel Core2 Extreme X7900 | Intel Core2 Extreme X7800 |
|---|---|---|
| Cores / threads | 2 / 2 | 2 / 2 |
| TDP | 44 W | 44 W |
| Process | 65 nm | 65 nm |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | Intel Core2 Extreme X7900 | Intel Core2 Extreme X7800 |
|---|---|---|
| General | ||
| Model | X7900 | X7800 |
| Codename | Merom | Merom |
| Segment | Mobile | Mobile |
| Product line | Legacy Intel Core Processors | Legacy Intel Core Processors |
| Process | 65 nm | 65 nm |
| Launch date | Q3 2007 | Q3 2007 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Updates | End of Servicing Updates |
| Embedded options available | No | No |
| CPU | ||
| Cores | 2 | 2 |
| Threads | 2 | 2 |
| Multithreading (SMT/HT) | No | No |
| Base clock | 2.8 GHz | 2.6 GHz |
| L2 cache | 4 MB | 4 MB |
| Bus speed | 800 MHz | 800 MHz |
| TDP | 44 W | 44 W |
| Turbo Boost | No | No |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| VID voltage range | 1.100V-1.375V | 1.100V-1.375V |
| FSB parity | No | No |
| Package and thermal | ||
| Sockets supported | PPGA478 | PPGA478 |
| Package size | 35mm x 35mm | 35mm x 35mm |
| TJUNCTION | 100 °C | 100 °C |
| Die size | 143 mm² | 143 mm² |
| Transistors (millions) | 291 million | 291 million |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Execute Disable Bit | Yes | Yes |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | No | — |