XFX 1000W Pro Series 80 Plus Platinum
by Martin Kaffei on March 1, 2012 1:38 AM EST- Posted in
- Cases/Cooling/PSUs
- Seasonic
- PSUs
- XFX
- 80 Plus Platinum
Voltage Regulation
| +3.3V Regulation/Ripple and Noise | |
| Load | Voltage |
| 5% | +1.88% (4mV) |
| 10% | +1.78% (6mV) |
| 20% | +0.61% (7mV) |
| 50% | +0.30% (11mV) |
| 80% | -0.03% (13mV) |
| 100% | -0.67% (14mV) |
| 110% | -0.91% (15mV) |
| Crossload +12V max. | +0.70% |
| Crossload +3.3V/+5V max. | -0.30% |
| +5V Regulation/Ripple and Noise | |
| Load | Voltage |
| 5% | +0.05% (7mV) |
| 10% | +0.04% (8mV) |
| 20% | +0.04% (10mV) |
| 50% | -0.60% (14mV) |
| 80% | -1.54% (16mV) |
| 100% | -1.70% (13mV) |
| 110% | -1.84% (17mV) |
| Crossload +12V max. | +0.28% |
| Crossload +3.3V/+5V max. | -0.28% |
| +12V Regulation (Worst Ouput)/Ripple and Noise (Worst Output) | |
| Load | Voltage |
| 5% | +1.12% (5mV) |
| 10% | +1.08% (6mV) |
| 20% | +0.98% (18mV) |
| 50% | +0.48% (16mV) |
| 80% | +-0.00% (21mV) |
| 100% | -0.23% (23mV) |
| 110% | -0.29% (25mV) |
| Crossload +12V max. | -0.17% |
| Crossload +3.3V/+5V max. | +0.22% |
Noise Levels
| Loudness (subjective) | |
| Load | Opinion |
| 5% | low fan noise |
| 10% | low fan noise |
| 20% | low fan noise |
| 50% | fan noise |
| 80% | strong fan noise |
| 100% | strong fan noise |
| 110% | strong fan noise |
Efficiency and PFC
| Efficiency (AC input minus DC output) and Power Factor | ||
| Load | Efficiency | PFC |
| 5% | 80.01% | 0.816 |
| 10% | 84.20% | 0.877 |
| 20% | 90.56% | 0.939 |
| 50% | 92.74% | 0.980 |
| 80% | 91.80% | 0.986 |
| 100% | 91.01% | 0.987 |
| 110% | 90.98% | 0.989 |
The +12V voltage regulation is tight, while the weaker +5V ouput drops to 1.84% below the optimal level. Nevertheless, all of the voltages are well within the ATX specification. Moreover there is hardly any ripple or noise on the outputs. They're always under 25mV and there are no remarkable spikes or transients. There's definitely some nice work here and the results are very close to what we measured on the Seasonic PSU.
With 80 Plus Platinum certification, we expected high efficiency and the XFX model delivers. Efficiency is always above 80% and 80 Plus Platinum is no problem for this design. Maximum efficiency comes at 50% load as always. Worst-case efficiency at low load (5%) is still 80%, so we really can't complain. With 92.74% XFX is only slightly lower than the 860W PSU from Seasonic--easily within the variance we're likely to see from either PSU.
The power factor is also satisfying, staying above 0.816. That might not be the best result for low load, but any high-end system requiring the XFX Pro Series should be running loads higher than that. During all loads the fan noise is acceptable if not optimal. We didn't hear any noise from the chokes. Of course the fan's RPM and the load rise equally, which is one reason why we can't criticise a strong fan noise at 80% load. Furthermore the features include two different modes for controlling the fan speed—the fan can be turned off through up to 40%, making the PSU inaudible (just like the Seasonic 860W).
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29 Comments
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mariush - Thursday, March 1, 2012 - link
Don't you have auto correct in your text editor?but we need to find out how good this model acutally is.
acutally -> actually
page 2... last paragraph... fan has fluid dynamic), then you use FD bearing at the end, without mentioning the abbreviation before
Martin Kaffei - Friday, March 2, 2012 - link
I'm afraid not!But we've corrected all mistakes now. Thanks a lot.
MySchizoBuddy - Friday, March 2, 2012 - link
Can you do a review of the "Be Quiet" series of PSU. They are supposed to be super silent in operation. http://www.be-quiet.net/be-quiet.net/index.php?Sto...ExarKun333 - Friday, March 2, 2012 - link
Not usually one to care about how an internal component looks, but this PSU is god-awful ugly. I would get the Seasonic in a heartbeat if these were side-by-side every time.kenyee - Friday, March 2, 2012 - link
1000W systems would be hot, loud, and power hungry :-PGet me a 600-700W power supply w/ platinum specs and I'll be happy to stuff it in a low power build ;-)
B3an - Saturday, March 3, 2012 - link
I have the XFX Pro 1250W Black Edition, which is very similar to this PSU and looks the same. All i have to say is that it's an excellent PSU, i've nothing bad to say about it at all.It's powering a VERY high end socket 2011 system with multiple GPU's, SSD's + HDD's, water cooling, 32GB RAM, and a highly overclocked i7 (4.9GHz) and the PSU remains quiet. Looks sexy too, even the cables are nice and all black.
Finally - Saturday, March 3, 2012 - link
Cool story, bro.aranyagag - Tuesday, March 6, 2012 - link
and a serperate IC for PFC control on a single sided PCB.SERPERATE
mikbe - Sunday, May 27, 2012 - link
As you said this PSU is made by Seasonic and they reuse their own design so this is almost exactly the same as the Seasonic eponymous version with the differences being the Seasonic has the better San Ace fan, it doesn't look like it was made by the Dharma Initiative, it has a connection from the main PSU board to the back that the XFX doesn't have (no idea what it's for), and the Seasonic is $25 more than this XFX version. Looking at the parts I think the XFX may also use some less expensive components that are spec'd near the same tolerances to shave a few dollars off production costs.If you want to save $25 (a good 10% of the cost) and don't mind the inferior, but still OK, fan and possibly some inferior components go for it. I'm not sure the better parts will make a real difference. That said I decided to spend the extra few dollars and went for the "real" Seasonic because I was buying the best and didn't want to skimp.