Corsair SF750 Platinum power supply review - Certification and efficiency

Name: Corsair SF750 Platinum power supply review
Brand: Corsair SF750 Platinum

by Krzysztof Hukalowicz on: 08/01/2019 03:01 PM [

] 3 comment(s)

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.

80 Plus test type	115 V internal non-redundant				230 V EU internal non-redundant
Percentage of rated load	10%	20%	50%	100%	10%	20%	50%	100%
80 Plus		80%	80%	80%		82%	85%	82%
80 Plus Bronze		82%	85%	82%		85%	88%	85%
80 Plus Silver		85%	88%	85%		87%	90%	87%
80 Plus Gold		87%	90%	87%		90%	92%	89%
80 Plus Platinum		90%	92%	89%		92%	94%	90%
80 Plus Titanium	90%	92%	94%	90%	90%	94%	96%	94%

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


Model	SF 750 Platinum
Type	Intel SFX 12 V / ATX 12 V
Certifications	80PLUS Platinum
Dimension	128 × 102 × 65 mm (W × L × H)
Output Capacity	750W
Input Voltage	Full Range (100 V - 240 V)
Current:	10 - 5 A
Input Frequency Range	47~63Hz
Fan Size	92 mm Rifle Bearing Fan (NR092L)
Efficiency	92% Under Typical Load
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.

8 pages 1 2 3 4 next »

Corsair HS65 Wireless Headset review
Headsets are one of the types of peripherals that Corsair offers (there are also PC components, but that’s not a story for this review). It ranges from budget-oriented HS series (the reviewed one is one of them), then there’s the mid-range Void series, and it ends with high-end Virtuoso. The HS series starts with HS35, and till now, it also contained HS45, HS50, HS55, HS60, HS65, HS70, HS75, and HS80 (some of them had different, wireless variants). We’re checking out the all-new Corsair HS65 Wireless in this review (today is the debut).

Corsair H170i Elite Capellix XT review
Corsair has announced an updated line of liquid coolers, and we have the Corsair H170i Elite Capellix XT edition on our test bench to see how the most beefy triple-fan 420mm model performs. The kit co...

Corsair Vengeance RGB DDR5 6000 CL36 review
In July, Corsair presented a new series of DDR5 memories: the Vengeance RGB DDR5. The available kits from the RGB edition have a frequency higher than the base 4800 MHz (5200-6600 MHz); the non-RGB version starts from 4800 MHz. We are checking the Corsair Vengeance RGB 6000 MHz CL36 DDR5 kit today. It's in the middle frequency in the series. We already had an opportunity (almost three years ago) to review the Vengeance (Pro) RGB series RAM, but it was for the DDR4; the frequency was 3200 MHz, and it received a "Top Pick" award, and also the Vengeance RGB Pro SL which had 3600 MHz frequency (with CL18) and got the "Approved" award. But let's focus back on the tested DDR5 kit.

Corsair Katar Elite Wireless mouse review
In this article, we review the Corsair Katar Elite Wireless mouse. It’s an optical gaming mouse that was launched today, on 26.10.2022. The Katar model is a new version of the Katar Pro Wireless that was introduced on October 2020. The Katar Elite Wireless is targeted at gamers, but it should also work more than fine as a regular mouse. This time, the optical sensor is not the 10K DPI PMW3325 but a 26K DPI Corsair Marksman. It has 1 DPI resolutions steps, 650 IPS tracking, and up to 50G acceleration.