TechPowerUp posted a review on the Corsair TX-M Series 750 W
A quote from the article:
If you need a PSU with high build quality and don't care about the semi-modular cable design, or top-performance in all areas, the TX750M fits the bill. It uses better parts than the RM750 and is sold at about the same price. However, the RM750 provides notably higher overall performance, and all of its cables are fully modular.Corsair TX-M Series 750 W Review