Based purely on price, Bing Ads is cheaper than Google AdWords. Average cost-per-click (CPC) on Bing runs $7.99, while Google charges $20.08. Advertisers get clicks for a lower price on Bing Ads and can, therefore, stretch their dollar further.
There are, however, other factors to consider when selecting an advertising platform. The first is its search-engine traffic. Google dominates the market, with nearly 93 percent of all industry traffic, while Bing draws about 2.55 to 4 percent. Using Google AdWords can lead to higher-quality traffic and more meaningful conversions.
Of course, Bing has advantages, too. For examples, it allows marketers to toggle the ad-group levels when it comes to targeting via network, location, language, and more. Bing also provides for device targeting so you can display or hide your ads from people using desktop computers, for example.
Bing can be a great source of additional traffic to compliment your efforts on AdWords and SEO, however, it is unlikely that you can drive enough volume from just Bing alone.