Thermaltake Toughpower PF3 850W PSU Review

Load Regulation

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 5.313A 1.983A 1.977A 0.982A 84.999 88.745% 0 <6.0 44.55°C 0.951
11.932V 5.043V 3.338V 5.092V 95.781 40.27°C 114.84V
20% 11.649A 2.975A 2.968A 1.181A 169.923 91.927% 0 <6.0 45.38°C 0.97
11.935V 5.041V 3.335V 5.082V 184.843 40.8°C 114.81V
30% 18.334A 3.472A 3.466A 1.38A 254.922 92.629% 0 <6.0 46.28°C 0.98
11.938V 5.04V 3.333V 5.072V 275.207 41.21°C 114.78V
40% 25.016A 3.969A 3.964A 1.58A 340.003 92.533% 1064 24.1 41.95°C 0.982
11.944V 5.039V 3.33V 5.061V 367.437 47.46°C 114.75V
50% 31.326A 4.964A 4.959A 1.782A 424.775 92.208% 1061 24.1 42.38°C 0.984
11.948V 5.037V 3.328V 5.05V 460.67 48.38°C 114.72V
60% 37.606A 5.96A 5.955A 1.984A 509.296 91.86% 1058 24.0 42.75°C 0.984
11.953V 5.034V 3.325V 5.04V 554.427 49.25°C 114.69V
70% 43.900A 6.958A 6.953A 2.187A 594.61 91.079% 1052 23.8 43.26°C 0.985
11.970V 5.031V 3.322V 5.029V 652.853 50.27°C 114.66V
80% 50.223A 7.956A 7.952A 2.291A 679.45 90.468% 1652 37.2 43.85°C 0.986
11.977V 5.028V 3.32V 5.02V 751.038 51.91°C 114.63V
90% 56.938A 8.454A 8.44A 2.394A 764.871 89.898% 1650 37.2 44.29°C 0.987
11.985V 5.027V 3.317V 5.011V 850.824 53.38°C 114.59V
100% 63.375A 8.955A 8.959A 3.004A 849.724 89.082% 1645 37.2 45.11°C 0.988
11.993V 5.025V 3.315V 4.992V 953.872 55.19°C 114.56V
110% 69.676A 9.953A 10.053A 3.009A 934.293 88.312% 1978 42.9 46.67°C 0.989
11.999V 5.023V 3.312V 4.985V 1057.953 57.59°C 114.52V
CL1 0.117A 11.963A 11.922A 0A 101.286 86.052% 1059 24.0 40.51°C 0.958
11.943V 5.032V 3.33V 5.105V 117.703 45.99°C 114.83V
CL2 0.115A 19.882A 0A 0A 101.359 84.348% 1657 37.3 40.11°C 0.959
11.939V 5.029V 3.339V 5.108V 120.17 47.14°C 114.83V
CL3 0.115A 0A 19.843A 0A 67.372 80.043% 1064 24.1 40.13°C 0.945
11.931V 5.044V 3.326V 5.105V 84.171 49.18°C 114.84V
CL4 70.861A 0A 0A 0A 849.442 89.909% 1649 37.2 45.59°C 0.988
11.988V 5.038V 3.324V 5.061V 944.782 56.56°C 114.57V

Load regulation is within 1% on all major rails.

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 6.7 mV 6.5 mV 8.3 mV 6.1 mV Pass
20% Load 7.2 mV 6.7 mV 8.4 mV 6.0 mV Pass
30% Load 8.3 mV 6.9 mV 9.1 mV 6.3 mV Pass
40% Load 10.3 mV 7.1 mV 9.6 mV 6.5 mV Pass
50% Load 11.0 mV 8.3 mV 10.9 mV 7.0 mV Pass
60% Load 11.3 mV 8.7 mV 11.1 mV 7.0 mV Pass
70% Load 11.3 mV 8.0 mV 12.0 mV 7.8 mV Pass
80% Load 12.5 mV 8.4 mV 12.8 mV 8.0 mV Pass
90% Load 13.3 mV 9.5 mV 13.9 mV 8.4 mV Pass
100% Load 19.2 mV 10.5 mV 16.3 mV 20.2 mV Pass
110% Load 18.4 mV 11.0 mV 18.6 mV 14.1 mV Pass
Crossload 1 13.4 mV 9.2 mV 10.7 mV 6.0 mV Pass
Crossload 2 11.6 mV 13.2 mV 9.5 mV 5.4 mV Pass
Crossload 3 9.4 mV 7.6 mV 10.9 mV 4.8 mV Pass
Crossload 4 19.9 mV 9.2 mV 16.6 mV 7.0 mV Pass

Ripple suppression is good on all rails, especially at 12V, where it matters the most.

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13 thoughts on “Thermaltake Toughpower PF3 850W PSU Review

  1. How can I make the EPS cable problem safe? Can I only use one of the connectors? Can I order a single cable from Thermaltake?

  2. How serious “problem” is the single cable for the 2 eps connectors? Do you think that the combination of a 7700x (or 7950x) and an asrock x670e steel legend would set this on fire? (No overcloking, only standard operation voltages. If it is an actual problem, then the next candidate is the rmx850 shift, are they equal? they seem so)

    1. In a single 12V rail it actually is. When both connectors can deliver more than 450W and take from a single PSU socket, all hell can break lose if something goes wrong.

        1. I’m also building a 7700X system and want this PSU. I’m sure only one 8-pin EPS connector is needed to power the 7700X, so Vman & I shouldn’t need to worry, right?

  3. Hello, I am now faced with choosing a power supply. I’ve been looking at your tests for a long time because I’m interested in it, but I want to choose a certain unit for my computer. Previously, I had a Bitfenix Whisper M 750W, but unfortunately its fan failed and I had to send the power supply back under warranty and received a refund.
    I’m aiming for 750w/850w,
    I care about low ripple, Japanese capacitors, quiet fan operation and two wires on a single pcie cable to the GPU (I have rtx 2070).
    I don’t know whether to go with old units or ATX 3.0.
    My unit under full load (prime95 + furmark) consumes 400W from the socket.
    I have a maximum of EUR 140 to spend, I live in the EU.
    Can you recommend something to me?

      1. Thanks for the answer. You’re doing an amazing job. I think I’ll go with the RM750x/850x shift.
        Will there be a review of XPG Core Reactor II? I see it in the table, but there is no separate article.

      2. I’m still considering Deepcool PX850G and XPG Core Reactor II 850W. They are available in my country at an affordable price. Which one will be the best idea?

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