Performance Max vs Search Campaigns: CPC, Conversion Rate and When to Use Each

Question 1

What is a Performance Max campaign and where do its ads appear?

Accepted Answer

According to the article, Performance Max is a goal-based campaign type that allows advertisers to access all of their Google Ads inventory from a single campaign. The article states that it uses Google's AI and Smart Bidding to distribute ads across Search, Display, YouTube, Gmail, Discover, Shopping, and Maps and to maximize conversions based on objectives like sales, leads, or store visits. It uses asset groups that automatically test combinations of headlines, images and calls-to-action.

Question 2

What are Google Ads Search campaigns and what control do they give advertisers?

Accepted Answer

According to the article, Google Search Campaigns are keyword-based ads that appear when users search for specific terms on Google. The article states that advertisers retain full control over keyword selection, bidding strategies, and ad messaging. Advertisers can see exactly which search terms triggered ads, which supports negative keyword management and bid adjustments.

Question 3

How do Performance Max and Search compare on CTR, CPC and conversion rate?

Accepted Answer

The article states that click-through rate is higher for Search campaigns versus Performance Max because Performance Max has exposure on other channels where CTR is much lower than search ads, while the average conversion rate in Google Ads in 2025 is 7.52% overall. Average CPC is lower with Performance Max versus Search campaigns, with the intro citing $0.68 for Performance Max compared to Google Ads' $0.85 average. The article also reports this year's overall average CPC of $4.66 is 44 cents higher than last year's average of $4.22. For conversion performance, the article states conversion rate is often higher with search versus Performance Max due to clear intent, while optimized for purchases, Performance Max sees a 1.83% conversion rate, close to the Google Ads average of 1.96%.

Question 4

Should I use Performance Max or Search for ecommerce, B2B lead generation, or local services?

Accepted Answer

According to the article, e-commerce businesses often find Performance Max effective due to integration with Google Shopping and visual formats across YouTube, Discover and Shopping, while retail businesses with seasonal patterns may prefer Search for immediate responsiveness. For B2B and lead generation, the article states Search is best for lead generation and competitive industries because it allows precise control over messaging and landing page alignment. For local and service-based businesses, the article states Search supports local targeting and urgent service needs, while Performance Max can build awareness during early research phases through YouTube and Discover.

Question 5

How much budget do I need and how should I test Performance Max vs Search?

Accepted Answer

The article states that for businesses with limited budgets, Search campaigns often provide more predictable performance and easier optimization due to transparency and control. It states that Performance Max needs a larger budget because it's machine learning that spends budget on data to learn from. The article recommends testing Performance Max yourself over minimum 4-6 week testing periods to allow machine learning algorithms to optimize fully and to account for seasonal variations.