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.
| Codename | Clarksfield | ||||||||||||||||||||||||
| Series | Intel Core i7 | ||||||||||||||||||||||||
Series: Core i7 Clarksfield
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| Clock Rate | 1730 - 3060 MHz | ||||||||||||||||||||||||
| Front Side Bus | 2500 | ||||||||||||||||||||||||
| Level 1 Cache | 256 KB | ||||||||||||||||||||||||
| Level 2 Cache | 1 MB | ||||||||||||||||||||||||
| Level 3 Cache | 8 MB | ||||||||||||||||||||||||
| Number of Cores / Threads | 4 / 8 | ||||||||||||||||||||||||
| 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 | ||||||||||||||||||||||||
| Architecture | x86 | ||||||||||||||||||||||||
| Starting Price | $546 U.S. | ||||||||||||||||||||||||
| Announcement Date | 09/23/2009 | ||||||||||||||||||||||||
| Product Link (external) | ark.intel.com | ||||||||||||||||||||||||
- Average benchmark valuesDeviltech Devil 9700 DTX: NVIDIA GeForce GTX 280M, 15.60", 3.5 kg
Review » Review Deviltech Devil 9700 DTX (W860CU) Notebook
HP Elitebook 8740w 820QM/FX2800M: NVIDIA Quadro FX 2800M, 17.00", 3.8 kg
External Review » HP Elitebook 8740w 820QM/FX2800M
Lenovo ThinkPad W701ds-2500: NVIDIA Quadro FX 2800M, 17.30", 4.1 kg
External Review » Lenovo ThinkPad W701ds-2500
HP 8740W-WW427PA: NVIDIA Quadro FX 3800M, 17.00", 3.6 kg
External Review » HP 8740W-WW427PA
LG R590-T.ARR7A3: NVIDIA GeForce GT 335M, 15.60", 2.7 kg
External Review » LG R590-T.ARR7A3
Dell Latitude E6510: NVIDIA NVS 3100M, 15.60", 2.5 kg
External Review » Dell Latitude E6510
Acer Aspire 8943G: ATI Mobility Radeon HD 5850, 18.40", 4.6 kg
External Review » Acer Aspire 8943G
Sony Vaio VPC-F1190X: NVIDIA GeForce GT 330M, 16.40", 3 kg
External Review » Sony Vaio VPC-F1190X
Sager NP8760: ATI Mobility Radeon HD 5870, 17.30", 3.8 kg
External Review » Sager NP8760
Deviltech Devil 9700 DTX HD 5870: ATI Mobility Radeon HD 5870, 15.60", 3.5 kg
External Review » Deviltech Devil 9700 DTX HD 5870
Lenovo Thinkpad W510 4319-29G: NVIDIA Quadro FX 880M, 15.60", 2.8 kg
External Review » Lenovo Thinkpad W510 4319-29G
MSI GT740: NVIDIA GeForce GTS 250M, 17.00", 3.2 kg
External Review » MSI GT740
Deviltech Devil 9700 DTX: NVIDIA GeForce GTX 280M, 15.60", 3.5 kg
External Review » Deviltech Devil 9700 DTX
Toshiba Qosmio X505: NVIDIA GeForce GTS 250M, 18.40", 5 kg
External Review » Toshiba Qosmio X505
» Mobile CPU Comparison
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