The LG G2 has been the all around most powerful phone I have ever used and as a small testament to its power I have benchmarked it using AnTuTu, Quadrant and 3DMark (Extreme and Unlimited). The scores are much higher than what was shown in the reviews and the AnTuTu score was taken before any modifications were made (root and custom recovery).
AnTuTu: 36369
Quadrant Standard: 20192
3DMark (Ice Storm Extreme 1080p): 9909 Maxed Out
3DMark (Ice Storm Unlimited 1080p): 16196
The Lost Digit 