What company makes GPUs?

According to a survey published on Ranker.com, Nvidia is regarded as the best GPU manufacturer, followed by AMD.

Who is the leading GPU manufacturer?

As of the third quarter of 2021, Intel was the biggest vendor in the PC GPU market worldwide, occupying 62 percent of the market. AMD, who has shipped over 500 hundred million GPUs since 2013, occupied 18 percent of the market, whilst Nvidia took a market share of 20 percent.