Epilogue
The flagship model be quiet! The Pure Power 13 M 1000W, which I reviewed last week, achieved high overall performance. The only reason it didn’t receive a “recommended” badge was that the OCP triggering points on the minor rails weren’t correctly configured. The 850W model of the same line achieves highly competitive performance, and although OCP on the minor rails might not be perfectly set, it follows the correct path; therefore, I will award it a recommendation (badge).
The difference in noise output between the Pure Power 12 M and 13 M lines is substantial, favouring the new units. be quiet! nailed it there, and on top of that, the overall performance is improved as well, following the top offerings in the 850W category. I find the asking price of $150 fair. I am tired of hearing that PSUs are expensive, while users pay easily over $1,000 to get a decent GPU and about the same for a CPU and motherboard combo. The PSU is among the few system parts that you will keep for years, and it is the heart of your system, so you should choose wisely. PSU prices are at fair, to say the least, levels compared to the prices of the rest of the system parts.
The main competitor of the Pure Power 13 M 850W is the Corsair RM850x. Both units achieve similar overall performance, but the former is dead silent. Not that the RM850x is noisy; on the contrary, it is quiet, with an average noise output of close to 21 dBA. But be quiet! dropped the average noise in its new Pure Power 13 M 850W model at close to 10.5 dBA! I hope we won’t see a different fan speed profile later in the be quiet! unit. I will have my ears open for user reports on this.
- be quiet! Pure Power 13 M 1000W ATX v3.1 PSU Review
- be quiet! Pure Power 13 M 850W ATX v3.1 PSU Review
- be quiet! Pure Power 13 M 750W ATX v3.1 PSU Review
- be quiet! Pure Power 13 M 650W ATX v3.1 PSU Review
- be quiet! Pure Power 13 M 550W ATX v3.1 PSU Review
All in all, be quiet! The Pure Power 13 M 850W is a worthwhile buy, offering dead-silent operation and high performance.
Before investing in a new power supply, read my Best ATX v3.x PSUs article to check all alternative PSU offerings. You help me a lot by using my affiliate links, which don’t increase the price of the product. I receive a commission from Amazon every time you do it, which can make a significant difference for me, especially now that I am working independently, exclusively for my media, rather than for someone else.
- Delivered full power at 46°C
- High overall performance
- ATX v3.1 and PCIe CEM 5.1 compliant
- Dead silent operation
- Properly set OCP at 12V and OPP
- Good build quality
- Good transient response at 12V
- Within 1% load regulation at 12V and 5V
- Good ripple suppression
- Efficient platform (Cybenetics Platinum)
- High power factor readings
- Highly efficient 5VSB rail
- Increased hold-up time
- Low inrush currents
- Alternative Low Power Mode (ALPM) compatible
- Quality, rifle bearing fan
- 12+4-pin PCIe connector set at 600W
- There is no need for more than 30A on the 3.3V rail (lower the respective OCP triggering point)
- >0.1W vampire power consumption at 230V
- Relatively loose load regulation at 3.3V
- No fan failure protection
Hi Ari!
I’m looking into a new PSU because of a GPU upgrade. Would you recommend this over the NZXT C850? In my country, they are the same price.
Best regards
It is a very good and newer platform than the NZXT, so I would give it a try.
Cheers, thanks for the reply. I think I’ll go for the ‘be quiet!’ then.
Thank you for the review Ari! Looking forward 550w version of the Pure Power 13M if you can review it in near future. It costs 101,90€ in Europe and probably the best offering at that price range with 10yr warranty for a low power high quality PSU.
I´m coming from Seasonic G-360 (360w) 80 Plus Gold which i bought 1/2015, but for the new system could be wise to change it even though G360 is high quality PSU that in test bench put out 450w before shut down and had high efficiency (90,7% 50% / 88.3% 20%), Japanese 105°C capacitors, very silent ADDA fan etc. I might still get +/- 5 extra years out of this, but if it kills other parts when dying then it gets expensive. I´m hoping to get similar quality for new PSU (reliable, silent, efficient) and don´t need high power version due to opting for modest 6C/12T CPU (65w TDP) and using old GTX 1060 3GB GPU for random gaming, internet and HTPC use. Unless you say to me that i should keep the current one as long it lasts?
I will do it in time. I will review the entire line, I just take it in order of Wattage.
Hi, Which one would you recommend at 850 watts? The corsair rm850x or the be quiet! pure power 13m? I would love to hear your opinion on which one would be a better option! The pricing is the exact same where I live.
Tough choice. Both are very good. I really cannot tell; it’s down to what you want more. I like the Corsair RMx series a lot; it’s among my favorite choices for builds. However, the Pure Power 13m is dead silent, which is not to say the RMx is noisy. Having the same price doesn’t help LOL
Hello, so there is actually no actual difference between both except the noise and sleeved cables (rm850x has them)? In my country the pure power 13 M 850W is like 50 euros cheaper.