SuperPi Calculation Tests puts the cross-hair over the raw horse-power of a system, a strong indicator of computing prowess. 16 Million Pi Digits Test ran:

The Gigabyte is only about 0.2% slower, nothing much to shout about.

Cinebench is based on the powerful 3D software CINEMA 4D. The results of tests conducted carry significant weight when analyzing a computer’s performance in everyday use.

The Gigabyte no slower than any of the other 650i boards here.

Sisoft Sandra Memory Bandwidth Tests shows that the Gigabyte is about 0.4% slower than the ASUS in Memory performance. This difference is small for sure, but proves that ASUS seem to be a little better at tweaking for Memory performance.

All these synthetic benchmarks may not even come close to being as sensitive as 3D Mark 2001 Lobby High Game Test. This is one of the best benchmarks to test for the area of system's performance largely dependant on bandwidth and latency. You see a bigger margin of difference, the Gigabyte emerges slightly faster than Abit and 1% slower than the ASUS.