5150 High Stim Pre-Workout
vs Smash AMF Pre Workout (OG)
Ingredient & Score Comparison
Last updated: Feb 2026
PwrRanks Verdict
Score Comparison
Objective scores based on ingredient dosing — 0 to 1 scale
Smash AMF Pre Workout (OG)'s formula has 350mg Caffeine Yield and 3mg Yohimbine HCl, which contribute to a higher energy score.
5150 High Stim Pre-Workout's formula has 750mg L-Tyrosine and 200mg Alpha-GPC, which contribute to a higher focus score.
5150 High Stim Pre-Workout and Smash AMF Pre Workout (OG) deliver similar performance per dollar — based on how both products compare to the broader pre-workout market.
Ingredient Comparison
5150 High Stim vs Smash AMF Pre Workout (OG) — dosing per serving
| Ingredient | Objective | 5150 High Stim | Smash AMF Pre Workout (OG) |
|---|---|---|---|
| Caffeine Yield | Energy | 400mg | 350mg |
| Yohimbine HCl | Energy | — | 3mg |
| L-Citrulline | Pump | 4g | 4g |
| Taurine | Pump | 2g | 500mg |
| L-Tyrosine | Focus | 750mg | 500mg |
| Acetyl L-Carnitine HCl | Focus | — | 500mg |
| Alpha-GPC | Focus | 200mg | — |
| L-Theanine | Focus | — | 20mg |
| Huperzine | Focus | 500mcg | — |
| Beta-Alanine | - | 3g | 1.5g |
| Creatine HCl | - | — | 1g |
| Choline Bitartrate | - | 500mg | — |
| Synephrine HCl | - | 150mg | 50mg |
| Cocoa Alkaloids Extract | - | 80mg | — |
| Green Tea 98% | - | — | 50mg |
| Grape Seed Extract | - | — | 20mg |
| Black Pepper Extract | - | — | 10mg |
| N-Methyltyramine HCL | - | — | 5mg |
| Naringenin | - | — | 5mg |
Who Should Buy Each
Matching products to training goals and stim tolerance
Choose 5150 High Stim If…
- ✓You want sharp mental focus that lasts through the full session
Choose Smash AMF Pre Workout (OG) If…
- No strong differentiators for this product in this comparison.
Frequently Asked Questions
Common questions about these two pre-workouts
5150 High Stim Pre-Workout has 400mg total caffeine per serving compared to 350mg in Smash AMF Pre Workout (OG).
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How PwrRanks Scores Pre-Workouts
Our methodology
PwrRanks scores every pre-workout by analyzing its ingredient label algorithmically. We generate four objective scores — Energy, Pump, Focus, and Value — that reflect what's in the tub, not how the product is marketed. Value scores are calculated using live pricing data to reflect real cost-per-serving at time of comparison.