Testing
Corsair TX650W PSU, 25% load
Voltage line |
Power load (amps) |
3,3V |
6A |
5V |
5A |
12V |
10A |
Corsair TX650W PSU, 50% load
Voltage line |
Power load (amps) |
3,3V |
12A |
5V |
10A |
12V |
20A |
Corsair TX650W PSU, 75% load
Voltage line |
Power load (amps) |
3,3V |
12A |
5V |
10A |
12V |
33A |
Corsair TX650W PSU, 100% load
Voltage line |
Power load (amps) |
3,3V |
12A |
5V |
15A |
12V |
45A |
Corsair TX650W PSU, 30-100% load voltage regulation test
Corsair TX650W PSU, efficiency graph
| Power load |
30% |
40% |
50% |
60% |
70% |
80% |
90% |
100% |
| Efficiency |
83% |
83% |
84% |
86% |
85% |
84% |
84% |
83% |
Corsair TX650W PSU, thermal performance
| Load (%) |
25% |
50% |
75% |
100% |
| Intake temperature (Celsius) |
21.8 |
22.4 |
26.2 |
30.7 |
| Exhaust temperature (Celsius) |
22.4 |
27.3 |
32.5 |
37.4 |
Despite our doubts after studying the interior of the TX650W it not only performed well but the power output and regulation is extraordinary. Corsair guarantees the TX650W to deliver 650W DC power at 50C degrees and it can clearly live up to these claims, as not only did it perform flawlessly up to its maximum output but it reached an insane output of 780W before the overload protection circuit shut it down. The voltage regulation circuit of the unit is also remarkably fast and quickly compensates when huge load shifts take place. The electrical performance of the TX650W is in one word, impressive. But it is not only the electrical performance of the unit which is impressive; the same exact thing can be said about its efficiency. No matter what the load percentage was, the efficiency never went below 83%.
By looking at the thermal performance of the TX650W one would imagine that we could say the same thing about the thermal performance too, but unfortunately that one is tied to the acoustic performance. Yes, the thermal performance of the unit is excellent and the unit stays extremely cool for its kind of output, but on the other hand the 120mm fan speeds up considerably when over 50% load and it quickly becomes noisy. So yes, the thermal performance of the unit is excellent at high loads but the acoustic performance of the unit suffers.
