Prime Energy has more caffeine than AMP Energy Original on both counts: 200mg per 12 oz can against 142mg per 16 oz can, and about 17mg per fluid ounce against 9. The serving sizes differ, so the table below shows both ways of counting.
AMP Energy Original vs Prime Energy: the numbers
| AMP Energy Original | Prime Energy | |
|---|---|---|
| Caffeine per serving | 142mg per 16 oz can | 200mg per 12 oz can |
| Caffeine per fl oz | 8.9mg | 16.7mg |
| Servings to reach 400mg (FDA context) | 2.8 | 2.0 |
Sources: AMP Energy Original's figure is verified in our AMP Energy Original caffeine guide against Caffeine Informer (source); Prime Energy's figure is verified in our Prime Energy guide against Caffeine Informer (source).
Which one should you pick?
Pick AMP Energy Original when you want the lighter dose or a slower ramp, and Prime 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
- AMP Energy Original: the full caffeine guide
- Prime Energy: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does AMP Energy Original or Prime Energy have more caffeine? Prime Energy: 200mg per 12 oz can versus 142mg per 16 oz can for AMP Energy Original.
Which is stronger per ounce? Prime Energy, at about 16.7mg per fluid ounce versus 8.9mg for AMP Energy Original.
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