Raze Energy has more caffeine than Rockstar Boom: 300mg vs 160mg in the same 16 oz can. That is a 140mg gap, and since the cans match, the per-serving number is the whole story.
Raze Energy vs Rockstar Boom: the numbers
| Raze Energy | Rockstar Boom | |
|---|---|---|
| Caffeine per serving | 300mg per 16 oz can | 160mg per 16 oz can |
| Caffeine per fl oz | 18.8mg | 10.0mg |
| Servings to reach 400mg (FDA context) | 1.3 | 2.5 |
Sources: Raze Energy's figure is verified in our Raze Energy caffeine guide against Caffeine Informer (source); Rockstar Boom's figure is verified in our Rockstar Boom guide against Caffeine Informer (source).
Which one should you pick?
Pick Rockstar Boom when you want the lighter dose or a slower ramp, and Raze Energy when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.
For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.
Related reading
- Raze Energy: the full caffeine guide
- Rockstar Boom: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Raze Energy or Rockstar Boom have more caffeine? Raze Energy: 300mg per 16 oz can versus 160mg per 16 oz can for Rockstar Boom.
Which is stronger per ounce? Raze Energy, at about 18.8mg per fluid ounce versus 10.0mg for Rockstar Boom.
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.