overclocking the Galaxy S4 GPU in order to manipulate benchmark scores and make them look better than the competition, and Ars Technica has found evidence that the Note 3 is also boosting benchmark scores, but with a different method this time. Apparently, this time around when the Galaxy Note 3 sees a popular benchmarking app running (like Geekbench) it will invoke the "benchmark booster" which will make it so the multiple cores of the Snapdragon 800 cannot idle at all.In the past, Samsung was caught
The proof of this comes when running Stealthbench, which is exactly the same app as Geekbench just renamed to fool Samsung. When running Geekbench, the processor cores will not be allowed to idle, but with Stealthbench running, they can (as you can see in the first image below). Ars found a package called "DVFSHelper.java" which listed a number of benchmarking apps that will invoke the booster. It's unclear what other modifications, if any, are being done, but the results for single-core tests are the same, but multi-core Geekbench benchmarks could be as much as 20% higher because of Samsung's tweaks and Linpack could see results 50% higher than normal.
Basically, it looks like more evidence that we should put less stock in benchmark numbers and more in real-world performance.
source: Ars Technica