Certification and efficiency
Energy efficiency certification
Corsair markets the SF series as their 80 Plus Platinum power supplies. Certification is performed by an organization called (yes, you guessed it right) 80 PLUS. But what does this mean “on paper”? It’s a program that was introduced in 2004 and intended to promote efficient energy use in computer power supply units (PSUs). Only products that have more than 80% efficiency at 20, 50, and 100% load, and a power factor of 0.9 or more, are eligible. This means that the PSU will waste 20% or less electric energy as heat, reducing power consumption and bills as compared with less efficient designs.
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115 V internal non-redundant |
230 V EU internal non-redundant |
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Percentage of rated load |
10% |
20% |
50% |
100% |
10% |
20% |
50% |
100% |
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80 Plus |
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80% |
80% |
80% |
|
82% |
85% |
82% |
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80 Plus Bronze |
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82% |
85% |
82% |
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85% |
88% |
85% |
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80 Plus Silver |
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85% |
88% |
85% |
|
87% |
90% |
87% |
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80 Plus Gold |
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87% |
90% |
87% |
|
90% |
92% |
89% |
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80 Plus Platinum |
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90% |
92% |
89% |
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92% |
94% |
90% |
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80 Plus Titanium |
90% |
92% |
94% |
90% |
90% |
94% |
96% |
94% |
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As you can see above, there are 80 Plus, Bronze, Silver, Gold (these three are from 2008), Platinum (2009), and Titanium (2012) certificates. Nowadays most computers with a single GPU don’t need more than a 600-650 W PSU, as power consumption has dropped over the years. The PSU tested today is the most efficient at 50% load (375 W), but the differences above and under this threshold are not significant. You don’t need to keep it exactly at half load, but for better noise performance, longevity, etc., it’s better to stay below the maximum wattage. The reviewed sample is 80 PLUS Platinum certified - up to 90~92% efficiency @ 115 V (at 20~100% loads) and has active PFC with a power factor of up to 0.99. It consumes < 0.3 W in its off-mode, complying with the ERP standard. If you want to check the Corsair SF750 PLATINUM’s measurements taken by the 80 Plus organization, you can have a look at them here.
Technical Specs below
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Model |
SF 750 Platinum |
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Type |
Intel SFX 12 V / ATX 12 V |
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Certifications |
80PLUS Platinum |
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Dimension |
128 × 102 × 65 mm (W × L × H) |
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Output Capacity |
750W |
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Input Voltage |
Full Range (100 V - 240 V) |
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Current: |
10 - 5 A |
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Input Frequency Range |
47~63Hz |
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Fan Size |
92 mm Rifle Bearing Fan (NR092L) |
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Efficiency |
92% Under Typical Load |
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Protection |
OVP, UVP, OPP, OTP, OCP, SCP |
“The CORSAIR SF750 80 PLUS Platinum SFX Power Supply is an extraordinarily power-dense PSU, ready to power the most cutting-edge small form factor PCs with 750 continuous watts.
- 80 PLUS PLATINUM CERTIFIED
The SF750 Platinum delivers power at up to 92% efficiency, lowering energy consumption, noise, temperatures, and your power bill.
- JAPANESE 105°C CAPACITORS
Using high-end electrolytic capacitors, the SF750 Platinum offers the unwavering power and long-term reliability you demand from a CORSAIR power supply.
- ZERO RPM FAN MODE
The SF750 Platinum’s 92mm cooling fan doesn’t spin until you need it, for near-silent operation at low and medium loads. “
Package contents
- CORSAIR SF Series power supply unit
- AC power cord
- DC modular cable set
- DC modular cable storage bag
- Cable ties
- CORSAIR case badge
- User manual
- SFX to ATX adapter
- Important safety information
Below you can find a list of the supplied cables:
This 750W model can be spotted with a street price of ~150 EUR. Let’s see if it’s worth it. Next page, please.
