Gabapentin and Tramadol differ in effectiveness by pain type. Gabapentin is more effective for neuropathic (nerve) pain, while tramadol works better for acute or moderate nociceptive pain. Tramadol acts quickly but carries risks of dependence, nausea, and dizziness. Gabapentin has lower addiction risk but slower onset. Effectiveness depends on the underlying condition, so choice should be guided by a doctor.