LinkedIn Ads vs Google Ads for B2B: Which Is Better?

LinkedIn Ads vs Google Ads is one of the most debated questions in B2B digital marketing. Both platforms can generate high-quality leads, but they work in fundamentally different ways. Understanding these differences is key to allocating your budget effectively.

The Fundamental Difference

Google Ads captures demand. You reach people who are actively searching for solutions. The intent is already there.

LinkedIn Ads creates demand. You reach people based on their professional profile, regardless of whether they are currently searching. You are planting seeds.

This distinction shapes everything: targeting, creative, conversion rates, and cost.

Cost Comparison

Let us start with the numbers everyone wants to know:

Google Ads Costs (B2B Average)

• Cost per click (CPC): $2-8
• Cost per lead (CPL): $50-200
• Conversion rate: 3-8%
• Minimum recommended monthly budget: $2,000-5,000

LinkedIn Ads Costs (B2B Average)

• Cost per click (CPC): $8-15
• Cost per lead (CPL): $75-300
• Conversion rate: 2-5% (sponsored content), 10-15% (lead gen forms)
• Minimum recommended monthly budget: $3,000-10,000

At first glance, Google Ads looks cheaper. But cost per click is a vanity metric. What matters is cost per qualified lead and cost per opportunity.

LinkedIn leads are often more qualified because the targeting is based on job title, company size, and industry -- exactly the criteria your sales team uses to qualify prospects. A $150 LinkedIn lead that converts to a $50,000 deal is infinitely more valuable than a $50 Google lead that never responds.

Targeting Capabilities

Google Ads Targeting

Strengths:

• Keyword targeting: Reach people based on what they are searching right now
• Geographic targeting: City, state, country, and radius
• Audience targeting: In-market audiences, custom audiences, remarketing
• Device targeting: Desktop, mobile, tablet

Weaknesses:

• No job title targeting: You cannot target VPs of Sales directly
• No company size filtering: Small businesses and enterprises see the same ads
• No industry-specific targeting (beyond broad in-market audiences)
• Competitor keyword costs: Bidding on competitor names is expensive and often low-converting

LinkedIn Ads Targeting

Strengths:

• Job title and function: Target "VP of Sales" or "Director of Marketing" directly
• Company size: Filter by employee count (1-10, 11-50, 51-200, 201-500, 500+)
• Industry: Target specific industries like SaaS, financial services, or healthcare
• Seniority level: Entry, senior, manager, director, VP, C-suite
• Company name: Target specific companies for ABM campaigns
• Skills and interests: Target based on profile skills and group memberships

Weaknesses:

• No intent signal: You do not know if the prospect is actively looking for a solution
• Self-reported data: Job titles and company info may be outdated
• Smaller audience pools: Tight targeting can limit reach significantly
• Limited remarketing: Less sophisticated than Google's remarketing capabilities

Best Use Cases for Each Platform

When to Use Google Ads

• Capturing existing demand: Your target keywords have significant search volume
• High-intent offers: Demos, free trials, consultations
• Competitive markets: Your prospects are comparing solutions
• Lower price points: Products under $10,000 annual value where self-serve research is common
• Remarketing: Bringing back website visitors who did not convert

When to Use LinkedIn Ads

• Account-based marketing (ABM): Targeting specific companies and decision-makers
• New market entry: Building awareness where no search demand exists yet
• Thought leadership distribution: Promoting content to senior leaders
• High-value offers: Products above $25,000 annual value where relationship-driven sales matter
• Event promotion: Driving webinar registrations and conference attendance

Ad Format Comparison

Google Ads Formats for B2B

• Search Ads: Text ads that appear in search results. The highest-converting format
• Display Ads: Banner ads across the Google Display Network. Best for remarketing
• YouTube Ads: Video ads that run before or during YouTube videos. Good for awareness
• Performance Max: AI-driven campaigns across all Google properties

LinkedIn Ads Formats for B2B

• Sponsored Content: Native ads in the LinkedIn feed. Most popular format
• Lead Gen Forms: Pre-filled forms that capture leads without leaving LinkedIn
• Message Ads (InMail): Direct messages to prospects' LinkedIn inboxes
• Dynamic Ads: Personalized ads featuring the prospect's name and photo
• Text Ads: Simple sidebar ads. Lowest cost but lowest engagement

Pro Tip: LinkedIn Lead Gen Forms are the standout format. Because the form is pre-filled with the prospect's LinkedIn data, conversion rates are 2-3x higher than sending traffic to a landing page. The trade-off is that these leads may be less intentional since it takes minimal effort to submit.

The Combined Approach

The most sophisticated B2B marketers use both platforms together:

1. Use LinkedIn Ads for awareness and engagement. Promote thought leadership content to your target audience
2. Use Google Ads to capture the demand you created. When prospects start searching for solutions, your Google Ads are waiting
3. Use remarketing on both platforms. Show follow-up ads to website visitors across Google Display Network and LinkedIn
4. Align with outbound outreach. Target the same accounts with cold email and LinkedIn Ads for reinforced messaging

Example integrated campaign:

• Week 1-2: LinkedIn Sponsored Content promoting a case study to target accounts
• Week 3-4: Google Search Ads capturing branded and solution-related searches
• Ongoing: Display and LinkedIn remarketing to website visitors
• Parallel: SDR outreach to the same target accounts via email and cold calling

Attribution and Measurement

Track These Metrics on Both Platforms

• Cost per lead (CPL)
• Cost per qualified lead (CPQL) -- This is the metric that matters
• Lead-to-opportunity conversion rate
• Cost per opportunity
• Pipeline influenced
• Return on ad spend (ROAS)

Attribution Challenges

B2B buying cycles involve multiple touchpoints across both platforms. A prospect might see a LinkedIn ad, search on Google a week later, and convert on a remarketing ad. Multi-touch attribution is essential.

Use UTM parameters on every ad URL and configure your CRM to track the full journey.

Conclusion

LinkedIn Ads vs Google Ads is not an either/or decision for B2B companies. Google Ads excels at capturing existing demand from high-intent searches, while LinkedIn Ads excels at reaching specific decision-makers and creating demand. The best strategy uses both platforms in a coordinated approach.

At Prospect Engine, we help B2B companies generate leads through outbound campaigns that complement your paid advertising efforts. Reach out to us to discuss how multichannel lead generation can fill your pipeline faster.