Futuremark 3DMark Vantage (E) and (P) tests
In 3Dmark Vantage test, the benchmark is run twice on each board to check record the performance in non OC and OC environment. From the chart, the A75 Extreme6 seems to have an advantage over the Gigabyte A75-UD4H by a lead of 500+ points.
When it comes to overclocking, the extra bandwidth we have on the ASRock A75 Extreme6 outperforms at 20010 marks against the Gigabyte board.
In performance test, we experience a similar situation. At default, the ASRock A75 Extreme6 is 200+ points higher than the Gigabyte board. Even when overclocked, we see a difference of 300+ points.