Legit Processor Reviews
Intel Unveils Sandy Bridge: Core i7 2600K, i5 2500K, i5 2400, i3 2100 CPUs
| Manufacturer: | Intel |
| Product: | Core i3, Core i5, Core i7 |
| Date: | Sun, Jan 02, 2011 - 11:05 PM |
| Written By: | Brian Wallace - |
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Power Consumption
Over the past several years lowering power consumption and increasing performance per watt has become one of the primary goals of Intel's new processor designs. As you'll see below, Intel has made great progress since the original performance per watt leader, the Core 2 series CPU.
For measuring power used we plugged our test system in to a Kill-a-Watt power meter. Aside from the motherboard, CPU, and video card the test system used a single SATA DVD drive, an SSD and two 120mm fans. More detail about each platform can be found on the Test Setup page. For idle testing we allowed the system to idle for 15 minutes at the desktop with no programs running and then took our reading. For our CPU load we ran the SMP version of folding@home. This is an intense and consistent load on the CPU and one of the best real world scenarios of 100% CPU usage. It should be noted that power consumption under load was very similar across all of our CPU tests.
The 32nm manufacturing process is certainly paying dividends here; the Intel Core i3/i5/i7 processors are unrivaled at either Idle or Load. As you'll see in the performance testing, the new Sandy Bridge processors offer astounding performance per watt. The last generation Lynnfield CPUs (Core i5 750 and Core i7 875K) were lauded for their low power use and relatively high performance compared to X58 Nehalem processors. Take special note of the Intel Core i5 661 and Intel Core i5 2500K as they have very similar power profiles, yet extremely different performance characteristics.
Next Page - The K-Series and Overclocking
| Review Index |
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Page 1 - Enter Intel Sandy Bridge Processors
Page 2 - Architecture Improvements, Turbo Boost 2.0, and AVX Page 3 - The Lineup, Intel Core i3, i5, and i7 Page 4 - Intel Core i3 2100, i5 2400, i5 2500K, i7 2600K Page 5 - Intel DP67BG Burrage Motherboard and Intel BXXTS100H CPU Cooler Page 6 - Power Consumption Page 7 - The K-Series and Overclocking Page 8 - Sandy Bridge Overclocking: How To Page 9 - Test Setup Page 10 - SiSoft Sandra 2011b Page 11 - wPrime Page 12 - Microsoft Excel 2010 Page 13 - x264 HD Encoding Page 14 - Handbrake Page 15 - Sony Vegas 10 Page 16 - Cinebench 11.5 Page 17 - 7-Zip Page 18 - iTunes 10 Page 19 - Folding@home Page 20 - Left 4 Dead 2 Page 21 - Starcraft II Page 22 - FIFA 2011 Page 23 - Final Thoughts & Conclusion |
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