Corsair SF750 750 W

[suvirintojas]

Small gaming rigs can still be powerful. Today we're looking at the SF750 - Corsair's submission into the premium SFX power supply space. The updated design brings ATX 3.1 support and keeps the impressive 80 Plus Platinum efficiency levels.

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[duynguyenle]

Nice review. The previous version of the SF750 has been one of the top recommendations for SFX power supplies for a long time. Looks like the updated version is also decent.

The label on the Ripple results table is wrong (wrong psu)

 

[Selaya]

we can has oem ... ?
(this is the 2nd time im asking)

 

[_roman_]

I doubt the usefulness especially with current graphic cards.

 

[dyonoctis]

I doubt the usefulness especially with current graphic cards.

people in the SFF community have been running the older SF750 with 3090/3090ti. It was the most popular SFF power supply, and there's a 850w version as well now. Until the midrange start at +500w TDP, it's a fine PSU for SFF builds.

we can has oem ... ?
(this is the 2nd time im asking)

Great Wall just like the older version. They've been killing it in that sector

 

[boppingXQWB]

As a general request: OCP, OPP, OTP tests, please. OCP/OPP limits are some of the most useful results ever, so I'd love to have them in the new reviews too. Sure you can check them when/if Aris and others cover them, but it would be good to see on TPU reviews as well.

I wish Corsair had stuck to Mini Fit connectors on the PSU-end. Really hate seeing those connectors.

I doubt the usefulness especially with current graphic cards.

Considering this PSU, when paired with a 9800X3D, is good for all but 5090 builds, that's a hard disagree from me.

 

[Chrispy_]

I doubt the usefulness especially with current graphic cards.

A decent 750W PSU is the minimum requirement for a 9070XT, a 5070Ti, a 4080S, and other potent, very expensive graphics cards. When you consider that less powerful GPUs make up about 98% of the market (Steam hardware survey), and then consider that the overlap between these two groups:

• gigantic triple-slot, extra-tall, extra-long 5080/4090/5090 GPUs that also need an additional slot of intake room for their three fans to breathe
• mITX SFF cases that are so small they mandate SFX power supplies

and you have an overlap that is absolutely miniscule, mainly for the reason that all three of those GPUs are practically unobtainable, even ignoring the price. There's really not a lot of concern over the 750W rating on this PSU.

It's absolutely true that this probably won't power a 4090/5090, and you're likely pushing your luck with a 5080.
It's also true that if you can afford any of those $1500+ cards, you can afford to get one of Corsair's 1000W SFX units instead of this 750W one.

 

[Gucky]

It's absolutely true that this probably won't power a 4090/5090, and you're likely pushing your luck with a 5080.

Not entiely true. Yes for the 5090, but the 4090 and 5080 is not a problem...unless you use a >250W CPU or use 12+Fans with a lot of PCIe 5.0 M.2s at the same time.

I use the old ATX 2.41 version of the SF750. I used it with a 450W 4090 and a 105W 5800X3D just fine. (even a 5950X with 142W before)
It was in a "small-ish" NR200P.
I also OCed my 4090 with 600W for testing and the PSU worked, but the PSU fan ramped up and was very loud.

To use it with a 4090, I used the Nvidia adapter and later I bought the adapter from Corsair, the unsleeved Type4 2x8-Pin to 12VHPWR. I run my GPUs with that cable for 2 years now without issues.

My current PC changed a bit. Now I use a big ATX case, because NO AM5 ITX or µATX Board has the features I wanted.
It still uses the same PSU, but my CPU is now a 9800X3D and a 5080 (sold 4090 last year). PSU still runs fine and pretty much silent.

I also use 3x M.2 and 3x Sata SSDs +6 Fans but no RGB.

P.S. I live in Europe and use ~230V power...

 

[_roman_]

I'm glad that you mention a decent powersupply.

My Corsair RM750 died in less than two years. Lots of discussion to get 90% of money back from amazon.de when I had my am4 plattform and my Asrock 6600Xt challenger d 8GB card.

850Watt for a psu.

Radeon™ RX 9070 XT GAMING OC 16G Specification | Graphics Card - GIGABYTE U.S.A.

Discover AORUS premium graphics cards, ft. WINDFORCE cooling, RGB lighting, PCB protection, and VR friendly features for the best gaming and VR experience!

www.gigabyte.com

800Watt (I really want to test that and than annoy them when my Enermax 750W PSU refuses to cooperate in my build.)

Hellhound Spectral White AMD Radeon™ RX 9070 XT 16GB GDDR6∣PowerColor

PowerColor

www.powercolor.com

I forgot which card it was, I saw 900 or 950 recently for the PSU suggestion.

In my point of view it is hard to guess what a decent power supply unit is or not. Of course a 750W PSU is decent enough for gaming builds with a Radeon 6600XT or similar.

There were posts already where the psu was "too old" or too weak. I can only watch from far, as I do not have access to those boxes with such issues. The time with the recommendations like 650 Watt psu are enough are over. I bought on purpose 750Watt and that is already not really ready for most high end amd or nivida graphic cards of 2025 / 2024.

 

[ymdhis]

It's a real shame they have no lower power versions, the older SF450 is pretty much the best possible PSU for low power builds SFF builds.

 

[Selaya]

[ ... ]
Great Wall just like the older version. They've been killing it in that sector

now can we please have this on the review proper also ... ? (it's not only missing here & the 1st time i complained but from all recent psu reviews ...)

 

[dirtyferret]

now can we please have this on the review proper also ... ? (it's not only missing here & the 1st time i complained but from all recent psu reviews ...)

probably a reason he left it off so people can judge on the PSU on the actual performance as opposed to making judgements simply on the OEM

Great Wall just like the older version. They've been killing it in that sector

GW has some pretty good facilities and there are a number of OEMs turning out some quality units even those OEMs that ten years people would have avoided. Also, let's not forget corsair is as hands on with the design as anyone else out there. They can take their units from OEM to OEM if need be.

 

[Mrgravia]

SF750 is basically rec number one for most SFF builds, save for the ultra small ones which need flex-tax, in which case the recommended one is the enhance 7660 or there about.

still hoping Thermalright gets their stuff in order and gives us some improved units next gen. Their current line is cheap for sfx but far from perfect.

be quiet’s sfx is also getting long in the teeth these days.

 

[Endymio]

I'm glad that you mention a decent powersupply.

My Corsair RM750 died in less than two years.

Funny, mine is just over five years old and rock solid.

The time with the recommendations like 650 Watt psu are enough are over. I bought on purpose 750Watt and that is already not really ready for most high end amd or nivida graphic cards of 2025 / 2024.

Nonsense. As others have pointed out, 750W easily covers 98%+ of the market.

 

[cvaldes]

Yeah, some people commenting on this thread clearly don't have any real life experience using these devices.

I've successfully used the Corsair SF750 and the Silverstone 800 with RTX 3080, RTX 3080 Ti and RTX 4080 Super.

Running a 5090? Sure, there might be some hesitation. But as pointed above, that's a miniscule portion. For 3090 and 4090 users this isn't a big deal. At this point, the trepidation is really only forward looking. We already know how this PSU class operates with 3090 and 4090 cards.

 

[Legacy-ZA]

I am still using my Corsair AX760, it's been rock solid, for what, almost 12 years now. Extremely happy with my product.

If mine should break, my next PSU will definitely be a PSU from Corsair, they make PSU's well, they seem to view us as <customers> and not consumers, meaning, not engineer their components to break as soon/near the warranty expires

This PSU of mine powered a GTX580 (480W), GTX760's in SLi, GTX1070, RTX2060, RTX3070TI, and now it's powering the RTX5070Ti, no melting connector for those interested.

 

[N/A]

4090- 850W, 5090 -1000W. There is no reason to skimp on this component. Especially with the 9090 in mind.
ideally the fan should remain silent at loads up to 450 with any of those SF750/850/1000.
Above 30 dBA it loses all usefulness in SFF for me.
23 dB at 600 W they said, in reality more like 33. Lol. That's a big discrepancy.

And 1000 just continues with the fan curve where the 750 left off

 

[londiste]

The only thing Corsair should get a proper beating for is the naming. There have been (at least) three different SF750 SFF PSUs. The initial version was 80+ Gold, then 80+ Platinum and now the updated ATX 3.1 compliant one...

It's absolutely true that this probably won't power a 4090/5090, and you're likely pushing your luck with a 5080.
It's also true that if you can afford any of those $1500+ cards, you can afford to get one of Corsair's 1000W SFX units instead of this 750W one.

What? I ran 3080 off of one for quite a long while, solid as a rock. In a DAN A4-SFX no less, which is very cramped. 5080 needs an extra 40W or so which will not be a problem (depending on the CPU of course).
The other part is true though - there are 1000-1300W SFX/SFX-L PSUs available as well if you need more power.

 

[Godrilla]

With the original sfx 750 platinum psu I was able to power a rtx 3090 sc2 hybrid and 9900ks and then 7700x/ 4090 suprim liquid for years. I ended up selling it for a Vertex 1000 psu Seasonic atx 3.1 for a cleaner look. It was a beast of a psu for enthusiast level hardware in my experience.

 

[PixelTech]

Now that we have ITX motherboards that can support 3x m.2 drives, I was hoping to see SFX power supplies without SATA. M.2 drives are also relatively cheap nowadays. If ITX/SFX is about conserving space and making builds as compact as possible... SATA is getting long in the tooth. I'd rather of taken a native 12v-2x6 socket over the SATA sockets.
I like to see when paying for this premium we actually get Corsair's fans.

 

[londiste]

Now that we have ITX motherboards that can support 3x m.2 drives, I was hoping to see SFX power supplies without SATA.

Why? PSUs are modular these days and the space the connector takes up is pretty miniscule in grand scheme of things. Besides, SATA power connectors are used for various other things other than drives.

 

[lexluthermiester]

we can has oem ... ?
(this is the 2nd time im asking)

It's Corsair, the quality is going to be top shelf. This review displayed that. That's all you need to know.

 

[Combatus]

4090- 850W, 5090 -1000W. There is no reason to skimp on this component. Especially with the 9090 in mind.
ideally the fan should remain silent at loads up to 450 with any of those SF750/850/1000.
Above 30 dBA it loses all usefulness in SFF for me.
23 dB at 600 W they said, in reality more like 33. Lol. That's a big discrepancy.
View attachment 390311
And 1000 just continues with the fan curve where the 750 left off
View attachment 390312

Yeah the biggest plus of the Corsair's was it Platinum rating/low noise. I've used Phanteks, Cooler Master, Lian Li and SilverStone SFX's and they're all noisy with the fans spinning up to very audible levels even at medium loads. With ITX the PSU is probably much closer to your ears if your PC is on your desk - certainly is in my ex NZXT H1 and current Hyte Revolt 3. Currently using the Lian Li 850W as my Corsair SF750W is going in my new build, and the Lian Li is a pain. Also heard that while Thermaltake's newish SFX's are Platinum, they often suffer from coil whine so for me it's Corsair all the way still.

Why? PSUs are modular these days and the space the connector takes up is pretty miniscule in grand scheme of things. Besides, SATA power connectors are used for various other things other than drives.

I agree. Gonna need SATA and or 4-pin MOLEX for a very long time yet - pumps, case power for hubs/lighting etc. Plus it's modular so if you don't need it, keep it in the box.
3.5/2.5in mounts in smaller ITX cases on the other hand is a waste of space unless dual purpose though - we have up to four M.2 ports on ITX boards now and 4TB SSDs are regularly dipping down to $200.