Intel Core i7-820QM
The Intel Core i7 820QM is a high end quad core CPU in 2009. It features 4 cores (quad core CPU) and Hyperthreading. Therefore, 8 threads can be worked on simultaneously.
Because of the Turbo Mode, the CPU is clocked with up to 3.06 GHz and therefore can perform very well in single core applications like older games.
The Core i7 line has an integrated memory controller for DDR3 bars (1066 or 1333). Therefore, the memory performance is very good (compared to older CPUs with external memory controllers). Still, this also leads to the higher TDP of the whole chip.
The Core micro-architecture is still very similar to the one used in the Core 2 CPUs, therefore the performance per MHz (neglecting the integrated memory controller, hyperthreading and Turbo Boost) is similar.
The power consumption of up to 45 Watt (TDP) is quite high for a laptop CPU and because of the Turbo Mode, the power consumption should reach these high values. Therefore, the CPU is only suited for large laptops.
| Series | Intel Core i7 |
| Codename | Clarksfield |
| Clock Rate | 1730 - 3060 MHz |
| Front Side Bus | 2500 MHz |
| Level 1 Cache | 256 KB |
| Level 2 Cache | 1024 KB |
| Level 3 Cache | 8196 KB |
| Number of Cores / Threads | 4 / 8 |
| Max. Power Consumption (TDP = Thermal Design Power) | 45 Watt |
| Transistor Count | 774 Million |
| Manufacturing Technology | 45 nm |
| Die Size | 296 mm2 |
| Max. Temperature | 100 °C |
| Socket | RPGA989 |
| 64 Bit | 64 Bit support |
| Hardware Virtualization | Vt |
| Starting Price | $546 U.S. |
| Announcement Date | 09/23/2009 |
| Product Link (external) | Intel Core i7 820QM |
Benchmarks
- Range of benchmark values for this graphics card