Conclusion

It is clear that the Infiniti is at the moment the best power supply in the Enermax portfolio. It has pretty much everything a user could wish for. The focus of the Infiniti is definitely not the mainstream market but more the high-end enthusiasts. We intentionally tested the 650W version of the Infiniti, since we wanted to show what the lower performing version can provide. A 720W version is also available, but for many users that would simply be overkill. The build quality is very good and Enermax takes no chances with low quality components. The case of the PSU comes with a nice looking brushed exterior, and in combination with the golden fan grille this will be an eye catcher in store displays and possibly inside your PC.

Efficiency Comparison

From the efficiency point of view, the Enermax Infiniti is playing in the top ranks of our comparison list which shows the highest measured efficiency of each unit we have tested so far. Indeed, the Infiniti has a very good efficiency rating over the whole range of input voltages. At most loads it remains above 80%.

Efficiency Comparison

Whoever buys an Enermax PSU can also rest assured that they will have enough cables and connectors for just about any conceivable configuration. Enermax is a company that pays attention to detail, and they don't skimp on the extras. As already stated, Enermax was also the first company to provide PSUs with 8-pin PEG connectors on a retail product, long before much of the competition. The Infiniti comes with three 6-pin PEG connectors, one of which is transformable to an 8-pin PEG connector. This is definitely nice for a 650W power supply.

The inside seems to be nicely arranged but we do feel strange about the similar temperatures with any kind of ambient heat. The heatsinks have a decent size and it's good to see that secondary heatsink is bigger than the less warm primary one. The air still has enough space to slip through to the PCB on all sides of the heatsinks which will provide the other components with a little cooling air.

The DC output has been very stable and no rails even went close to being out of specification. The 12V rails in particular are consistently very high with loads of up to 300W, and they never go lower than 12.05V.

Since the Infiniti has been available for a year now, the prices are quite stable. You can get this 650W PSU for about $190 plus shipping in the US. The cheapest price in Europe is about €140 which equals the $190 price in the US. For a 650W power supply the price is definitely not cheap, and users will need to decide if the package offers enough value to warrant a purchase. There are surely other power supplies with similar quality, fewer unnecessary accessories, and a lower price. If saving a Jefferson or two isn't high on your list of priorities, however, the Enermax Infiniti is a good quality offering.

Temperatures, Fan Speed, and Acoustics
Comments Locked

25 Comments

View All Comments

  • n0nsense - Wednesday, September 12, 2007 - link

    lol.
    82F =~27C
    I have 29-32 (night/day), 75% humidity for ~8 month.
    C2D running @ 3.06GHz instead of 1.86, 8800GTS 640MB, 5 HDs on 680i chipset (which is hot). ALL this Air cooled.
    almost silent.
    the only thing i hear is HDs (specially 15000rpm SCSI head moving).
  • n0nsense - Wednesday, September 12, 2007 - link

    lol.
    82F =~27C
    I have 29-32 (night/day), 75% humidity for ~8 month.
    C2D running @ 3.06GHz instead of 1.86, 8800GTS 640MB, 5 HDs on 680i chipset (which is hot). ALL this Air cooled.
    almost silent.
    the only thing i hear is HDs (specially 15000rpm SCSI head moving).
  • Jodiuh - Tuesday, September 11, 2007 - link

    Haha, doesn't the heat suck in the summer? I'm @ 26-28C depending on TOD and running a lower clocked air cooled C2D w/ an 88GTX, but w/ the PC P&C 610. It def never gets loud, but doesn't have the cool anodized finish either. :D Bring on the winter and it's 22-24C temps!
  • Christoph Katzer - Tuesday, September 11, 2007 - link

    Thanks, and before somebody is asking. I do ripple/noise tests but the Infiniti was tested already some time ago. I will add the results asap after I got feedback from the review with actual results (Antec Earthwatts) this month. Hmmmkay?
  • datamogul - Wednesday, July 1, 2020 - link

    For psu nostalgics :) Bought this psu unused in ebay and swapped out my evga g3 to use it with a x370 board equippedwith a 1700x and an rx580. The infiniti 650 has been running without problems for over a week. When switching off, the fan briefly but loudly turns up.

Log in

Don't have an account? Sign up now