Corsair TX750W Power Supply

Conclusion

The TX750W is second in command in Corsair's power structure, and it's not a bad product. However, we did have some concerns with this CWT-built power supply, and some of the results support those feelings.

The Corsair package and overall appearance is very well done. Buyers will certainly feel that they are getting a high quality product, and in fact the build quality is very good. The cables are nice and long, making this a great power supply for larger cases. The problem is that some of the internal design could be improved.

We have already discussed the shape of the heatsinks, which we have seen in many other CWT-built power supplies. They simply aren't great for airflow, and it's odd because it shouldn't be too hard to change this aspect. All they need to do is leave a little more space between the fins, but this is a cheaper method of creating heatsinks. Still, Seasonic uses a similar method for some of their heatsinks and yet they still leave a larger gap between the fins, improving overall PSU temperatures. Another issue we saw with the internal design is that there's a large gap at the back of this PSU, since it has a large housing with a more normal sized PCB. The result is that we saw a lot of air circulating at the front of the power supply instead of being expelled out the rear, which may be one of the reasons for some of higher temperatures.

The tests also show that DC voltage regulation is not very tight and we saw large drops on almost every rail. The important 12V rail does best, but then it also has the highest ripple readings we've seen from a high-end power supply this year. Noise levels are also a negative, since the PSU is relatively loud even at lower loads, and anything above 80% load results in a very loud PSU.

Compared to other Corsair offerings, the TX750W is simply not up to snuff. The previously tested HX1000W was an excellent power supply, but that power supply uses a different topology. We also received an HX520W recently and that power supply performs very well -- it's a Seasonic-built unit. Pricing may be the one saving grace, however.

The TX750W has been in the market for a while, so the price is quite a bit lower than the MSRP. In the US, we have seen the TX750W for $100 to $130, which is a fair price for a 750W power supply. Prices in Europe start at €95, which equals $130 but includes tax. With an average price of $115, the Corsair TX750W is one of the cheapest 750W offerings on the market. The PC Power & Cooling Silencer 750 runs around $135 and the Cooler Master Real Power Pro costs $140. However, even with savings of $25 over some of the competition, there are plenty of other options in this price and performance range.