From Mr. Stern's web site:
Superwhites
Claims ("55w = 85w", etc.) made for "Superwhite" type bulbs are very misleading. They simply aren't true. Here's the full scoop!
CLAIM: "SuperWhite" bulbs produce 85W of light from 55W of electricity
REALITY: "Superwhite" ("Hyperwhite", "UltraWhite", "Platinum", etc., basically any bulb advertised as being "whiter" than normal) bulbs produce more glare and less seeing light than standard bulbs.
The "55W = 85W" type claims are a sham. Here's how these kinds of pretend wattage numbers are cooked-up: The blue or purple filtration coating on the glass tints the light so that it is "whiter". Most bulbs that actually produces more light (i.e., higher-wattage bulbs) also burn with a whiter color than standard-wattage bulbs. With these color-coated bulbs, only the light color, and not the actual light output, imitates a high-power bulb. There is no seeing advantage to "whiter" light, though some people seem to think that others will look upon headlamps so equipped and go "Wow, cool!". Why they believe anyone else cares what color their headlamps are is anybody's guess.
A major reason why many people find many US-specification headlamps in need of upgrading is because many such headlamps have very low levels of foreground light, which creates a "black hole" on the road in front of the car. There's often insufficient lateral light (left and right) to see critters or people before they run into the road. The "hot spot" creates a narrow tunnel of light that disappears "out there somewhere", with no visual cue to where the beam (and therefore the driver's seeing range or "preview") ends. But these headlamp performance aspects are governed by the optics of the lamp, not by the color of the light. Bulbs with blue or purple tinted glass never improve the performance of your headlamps. They may leave it relatively unchanged, or they may severely reduce it, but they never improve it. ...
...BOTTOM LINE: The laws of physics are the laws of physics. They don't bend even for the highest-paid advertising agency. There is no way to get "85 watts of light for 55 watts of electricity." Tinted bulbs aren't better.
http://www.danielsternlighting.com/tech/bulbs/superwhite/superwhite.htmlSo I really wonder if GE has succumbed to the "super white" hyperbole

Too bad if they have as the regular Nighthawks are great.