Corsair RM750x PSU Review
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Page 1:Corsair RM750x PSU Review
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Page 2:Packaging, Contents, Exterior And Cabling
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Page 3:A Look Inside And Component Analysis
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Page 4:Load Regulation, Hold-Up Time And Inrush Current
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Page 5:Efficiency, Temperature, Noise, Cross-Load Tests And Infrared Images
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Page 6:Transient Response Tests And Ripple Measurements
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Page 7:Performance, Performance Per Dollar And Noise Ratings
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Page 8:Pros, Cons And Final Verdict
Performance, Performance Per Dollar And Noise Ratings
Performance Rating
The following graph shows the total performance rating of the PSU, comparing it to other units we have tested in the past. To be more specific, the tested unit is shown as 100 percent, and every other unit's performance is shown relative to it.
The RM750i and the RM750x score almost the same in this chart — a result we expected, considering they share the same platform. Overall, the RM750x demonstrated very good performance on a par with the excellent EVGA SuperNOVA 750 G2 unit. The Seasonic X-750, though more efficient, is a little bit behind the Corsair units because of the 39-mV ripple that we measured on its +12V rail.
Performance Per Dollar
The following chart may be the most interesting to many of you because it depicts the unit's performance-per-dollar score. We looked up the current price of each PSU on popular online shops and used those prices and all relative performance numbers to calculate the index. If the specific unit wasn't available in the United States, we searched for it in popular European Union shops, converting the listed price to USD (without VAT). Note that all of the numbers in the following graph are normalized by the rated power of each PSU.
Because both Corsair units share the same relative performance rating and the RM750x costs less, naturally it is ahead of the RM750i in this chart.
Noise Rating
The graph below depicts the cooling fan's average noise over the PSU's entire operating range, with an ambient temperature between 28 and 30 C (82 to 86 F).
The RM750i proved to be quieter during our cross-load tests and easily took the lead here. However, this doesn't mean the RM750x is loud during operation; in fact, it is among the quietest 750 W units available on the market today.
- Corsair RM750x PSU Review
- Packaging, Contents, Exterior And Cabling
- A Look Inside And Component Analysis
- Load Regulation, Hold-Up Time And Inrush Current
- Efficiency, Temperature, Noise, Cross-Load Tests And Infrared Images
- Transient Response Tests And Ripple Measurements
- Performance, Performance Per Dollar And Noise Ratings
- Pros, Cons And Final Verdict
They have a 650x as well that's a little cheaper.
Wrong on so many levels.
YOU do not have the failure rate for this or any other Corsair PSU.
This PSU is the RMx, not the RM, so even if you did have a failure rate, it would only be about two weeks of data.
If you were talking about the RM and not the RMx, and you actually had failure rate data, you would see that the failure rate on the RM wasn't really high at all.
*sigh* nonsense comment of the day.
I don't know if this is a problem of your site, or my PC/IP, but frequently the charts do not load, even when the page "ends" loading.
Sometimes, if I "reload", then the charts also load.
I open all the article pages simultaneously, on different tabs, so I don't need to wait for each one to load.
Did you even LOOK at the article? The only problem with these are the Sinopowers on the secondary side, and that's not even a "bad" thing. Oh and btw, some of the best power supplies in the world are Superflower OEMs produced by Corsair.
Permanent'ing such thing from the editorial side would be great!
Corsair doesn't use SuperFlower anywhere in its lineup. CWT, Great Wall, Flextronics, Seasonic and Chicony which has since been dropped are all the OEMs Corsair uses or has used.
Tier lists will include an entire product line in a category based upon a single model review. The Corsair HX 750/850 were great, the 1000 / 1050 were dogs but all were placed in the same tier. Below we see that CWT made their lowest tier as well as some of the best products Corsair ever sold.
CS was made by Great Wall
CX and GS by CWT
VS by CWT
RM 450-650 were made by CWT,
RM 750 and 850 by Chcony
RM 750v2 -850v2 and 1000 were made by CWT
RMi / RMx series are made by CWT
HX 650 was made by Seasonic
HX 750, 850 and 1050 were made by CWT (2/3 were excellent)
HXi series was made by CWT
AX series was made by Seasonic
AXi was made by Flextronics
Wrong. The AXi is a SuperFlower Leadex OEM. Which is sometimes produced by Corsair, Seasonic, and EVGA.
http://www.realhardtechx.com/index_archivos/Page447.htm
http://www.orionpsudb.com/corsair
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story6&reid=317
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=378
And why would Seasonic make a SuperFlower platform? They don't. The 2 companies are direct competitors. You are correct about EVGA using SuperFlower though.
They were?!?!?! Says who???
The guy who gave it a 8.5 performance * and 7.0 Build Quality rating
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=245
The 850 got a 10 in performance but back then no BQ ratings
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=153
* 1000 wasn't that bad with a 9.0 performance rating. I used it 3 times as I recall, had problems with 2..... one would hiccup under SLI loads, a user build had fan noise issues.
Right. And if you read the fine print:
"More loose heatsink screws to deal with. But at least there were only two of them in there this time that could be considered a potential problem. Two points off for that. It'll probably never be a problem for 99% of these sold, but I'm an electronics tech. I get to be picky with stuff like that."
This doesn't make a product "a dog".
AFAIK, it really wasn't a problem for 99% of the folks out there and since it was pointed out in the reviews, CWT started using nylon washers or thread lock on all screws.
I did read the fine print, but I am speaking "in context" ... As you said ... 2 points off... that only brings it to a 9. In the general context of things, I normally would call a 9.0 build quality rating a dog.... perfectly acceptable, perfectly suitable for an office or budget restricted gaming box.
But when one is looking at, and prepared to pay for what the HX series bought to the table for a presumed moderate to higher end build for overclocking or gaming, the mindset is "top end".
I expect a 10.0 here. When you are paying 10.0 quality a prices, a 9.0 BQ / Perf. rating is gonna get a "dog" label, at least in my eyes. If I wanted 9.0's, I'd look at cheaper model lines. As a TX, and without the careless assembly, the moniker would not have been used.