Intel Core2 Duo E6400 vs Intel Core2 Extreme X6800: comparison
Comparison of Intel Core2 Duo E6400 and Intel Core2 Extreme X6800: key differences and a full specification table.
Key differences
Intel Core2 Duo E6400 has a lower TDP (65 W vs 75 W).
At the same time, Intel Core2 Extreme X6800 has a higher base clock (2.93 GHz vs 2.13 GHz).
Both processors match on: core count (2), thread count (2), 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 Duo E6400 | Intel Core2 Extreme X6800 |
|---|---|---|
| Cores / threads | 2 / 2 | 2 / 2 |
| TDP | 65 W | 75 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 Duo E6400 | Intel Core2 Extreme X6800 |
|---|---|---|
| General | ||
| Model | E6400 | X6800 |
| Codename | Conroe | Conroe |
| Segment | Desktop | Desktop |
| Product line | Legacy Intel Core Processors | Legacy Intel Core Processors |
| Process | 65 nm | 65 nm |
| Launch date | Q3 2006 | Q3 2006 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Lifetime | End of Servicing Lifetime |
| Embedded options available | Yes | No |
| CPU | ||
| Cores | 2 | 2 |
| Threads | 2 | 2 |
| Multithreading (SMT/HT) | No | No |
| Base clock | 2.13 GHz | 2.93 GHz |
| L2 cache | 2 MB | 4 MB |
| Bus speed | 1.066 GHz | 1.066 GHz |
| TDP | 65 W | 75 W |
| Turbo Boost | No | No |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| VID voltage range | 0.8500V-1.5V | 0.8500V-1.5V |
| FSB parity | No | No |
| Package and thermal | ||
| Sockets supported | PLGA775, LGA775 | PLGA775 |
| Package size | 37.5mm x 37.5mm | 37.5mm x 37.5mm |
| TCASE | 61.4 °C | 60.4 °C |
| Die size | 111 mm² | 143 mm² |
| Transistors (millions) | 167 million | 291 million |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| AES-NI | No | No |
| Execute Disable Bit | Yes | Yes |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |