There was one launch day - instabuy from Computex 2016 I could add to my current CaseLabs build, this beautiful Seasonic Titanium 850watt. Seasonic is offering a 650w, 750w, and 850watt Prime, all Titanium rated (94% efficiency at 50% load).
Ask any PSU guru George, Johnny, Oklahoma they would say the 650watt would be ideal for my rig, since all my components at maximum load and overclocked in sum would not exceed the 650w number, and would lead to the least amount of waste heat generated and pumped into the office space over time.
I believe they are right, the 650watt would be the most ideal considering the entire load range of each PSU. But if I only consider the 10% to 20% load range for my work rig, which is where it will be spending 95% of it's uptime, this chart below would suggest the 850watt is the most efficient of the three between 10% and 20% load. And yes, I even did the math and factored in the difference for each PSU in that range 650watt 65watts to 130watts, 750watt 75watts to 150watts, 850watt 85watts to 170watts, and a 95watt idle load is 11.2% of the 850, 12.7% of the 750, and 14.6% of the 650. Then extrapolated from 10% to 20% each whole percent from 10 to 20 using the data Seasonic provides, and the 850watt is still more efficient within the 10 to 20 percent range than the 750watt and 650watt skus. Although the differences are so minute, the actual amount of ten hours of waste heat generated is also most likely negligible, but at least within the low idle range I work in, the 650watt is NOT the clear overall best choice. If I was gaming half the time and working half the time, then yes, the 650w would be the one to buy utilizing its entire range from 0% to 100%.
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Is this above real and substantial palpable logic or did I only dream up a scenario that justifies purchasing the higher powered 850watt? We'll never know.
Also the good gentleman at Seasonic has stated that each of these Titanium Prime units will power up to 30% higher than their rated load, which is awesome for overclockers and gamers.
All three would of course be ideal for the Bullet BH7.
Warning: Awesome cursor-friendly graphic incoming
http://seasonic.com/prime/prime-850-w-titanium/Edited by iBruce - 6/7/16 at 8:38am