Our load tests utilize a couple of FAST ATE active load testers and a variety of other equipment such as an oscilloscope, power conditioner, temperature probe and a power consumption meter. You can read more about our standard testing approach here.
The tests performed are based around six conceivable setups that are out there and progressively load down the PSU up to the power supply's limits or 1000W, whichever comes first. Since our test equipment's limits are higher than to that of the Thermaltake Toughpower Grand Platinum 700W power supply, we can test it to the maximum.
The above tests represent typical loads that we have measured from various systems and are meant to give a rough idea of where your computer might fall in line with our tests. Please keep in mind that each system is different and actual loads can vary greatly even with similar hardware.
Let's start by taking a look at the voltages to see how well this unit did during testing. Starting with the 12V rail, we see 1% regulation from start to finish with a total drop of .10V. The 5V rail managed to stay within 2% of specification with a total drop of .05V from start to finish. Moving towards the 3.3V rail, we see that regulation was within 1% of specification with a total voltage drop of .04V.
DC Output quality for the Toughpower Grand Platinum 700W was okay, but well within specification. During Test 1, we saw 22mV of noise on our scope. When we increased the loads in Test 1, the ripple climbed to 33mV at a little under half load. During Test 4 under a load of 700W, the oscilloscope showed a maximum of 52mv on noise on the 12V rail.
The Thermaltake Toughpower Grand Platinum 700W is rated for 80 PLUS Platinum efficiency. This means that the power supply must perform at 90%/92%/89% efficiency at 20%/50%/100% loads respectively. As you can see, the Toughpower Grand Platinum 700W passed on our bench, and wasn't close to failing at any point.
As we stated from the start, the Toughpower Grand series is known not only for its performance, but also the aesthetic design. As far as aesthetics go, the TPG-700M does an amazing job. It looks fantastic in white with some high-contrast black to accentuate it and provides yet another option for those seeking something other than a black power supply. It should match very well with white cases such as Thermaltake's own Level 10 white cases.
The performance of the Toughpower Grand Platinum 700W is almost just what we expected, too. Voltage regulation is superb, coming in at 1% on the 12V and 3.3V rails and 2% on the 5V rail. Efficiency is superb as well, giving us just what is advertised. Where we are a little surprised is in the DC output quality department. We expected a bit better noise suppression, especially considering the reputation of the unit and the build quality we saw. Regardless, 52mV of noise on the 12V rail is far from being bad, but there are many units on the market that do it better... including other Thermaltake units.
The sad thing is that all of this comes with a somewhat high price premium that is made worse by a bit of gouging done by Newegg. At least Thermaltake sweetens it up a bit with a solid seven year warranty, ensuring that your investment is going to be around for a while, even if there happens to be an issue with the unit down the track.