Google Ads vs Facebook Ads: Honest Comparison From Running Both
Both work. They serve different funnel stages. Here's when to use each, when to use both, and the budget split that makes sense for most businesses.
The "Google or Facebook" question gets asked like it's either/or. For most businesses, the answer is both — but with very different roles. Google captures intent that already exists. Facebook creates intent that didn't.
What each does well
Google Search: catches people actively searching for your category. Highest intent, highest conversion rate, often highest CAC for cold (because you're bidding against everyone else who wants the same searches).
Facebook Ads: introduces your offer to people who weren't looking for it. Lower intent, more volume potential, lower per-click cost but more steps to conversion.
Google Display / YouTube: closer to Facebook in mechanics. Reach without intent, drives awareness more than direct conversion.
Performance Max: blends Search + Display + YouTube + Shopping into one campaign. Useful but blackbox-y.
The budget split that works for most
For e-commerce or SaaS in growth phase:
- Facebook: 50-60% (top of funnel demand creation)
- Google Search: 20-30% (capture branded + high-intent generic searches)
- Google Performance Max / Display: 10-15% (inventory diversification)
- Other (LinkedIn, TikTok, etc.): remaining
The exact split depends on your stage. Pure brand-new offer with no awareness: Facebook-heavier. Established brand with strong organic search demand: Google-heavier.
The complementary play
Run Facebook to generate awareness. People see your ads, get curious, search you on Google. Capture them on Google Search. Branded searches lift 30-80% when Facebook is running well — that's direct evidence Facebook is creating Google demand.
If you stop Facebook and Google Search volume holds, you weren't doing demand creation — you were just capturing existing demand. That's a clue to invest more in Facebook.
When to lean Google-heavy
- You have an established brand with organic search demand
- Your category has high search volume relative to ad inventory
- Your offer is highly comparison-shopped (Google captures comparisons)
- You sell to in-market buyers (B2B with active buying cycles)
When to lean Facebook-heavy
- You're creating a new category or the offer is novel
- Your customer doesn't know to search for you
- You have great visual product / brand story
- You need scale fast (Google volume capped by search demand)
FAQ
Should I start with Google or Facebook?
Existing demand: Google. Creating demand: Facebook. Most modern businesses need both within first year.
Is one channel cheaper?
Per click yes (Facebook cheaper), per conversion mixed (depends on offer), per actual ROI usually similar at maturity.
Bottom line
Stop framing it as one vs the other. They're different layers. Facebook creates demand, Google captures it. Both belong in any growth-phase business's mix.