Intel's six-core processors are fast, but enthusiasts almost always want to push unlocked multipliers harder. Core i7-3960X can easily exceed 4 GHz, but what happens to power efficiency when clock rates go up? Sandy Bridge-E demonstrates weaknesses there.
Our collection of multi-threaded applications also enjoy a roughly 16% speed-up in going from stock clock rates to our highest stable frequency.
The total energy required climbed by about 31%, though. That's not a very good trade-off for the extra speed, if you're concerned about the relationship between both figures.
As a result of these more demanding benchmarks utilizing six cores instead of one, total energy required is, not surprisingly, higher than what we saw in the single-threaded suite. It's especially important to notice that power consumption climbed by 19% due to overclocking, which is more than performance improved.
- Sandy Bridge-E: Does The E Stand For Efficiency?
- Intel's Core i7-3000 Family: Dominating The High-End
- Overclocking: Procedure, Details, And Log
- Screenshot Or It Didn't Happen
- Test Configuration And Benchmarks
- Benchmark Results: Matlab
- Benchmark Results: Professional Applications
- Benchmark Results: Audio/Video And Compression Programs
- Power Consumption
- Efficiency: Single-Threaded (One Core Active)
- Efficiency: Multi-Threaded (All Cores Active)
- Overall Efficiency: Single- And Multi-Threaded
- Sandy Bridge-E’s Efficiency Suffers Significantly Overclocked