Despite of Titanfall topping the charts for the second month in a row, Sony’s PlayStation 4 continues to pull ahead of the Xbox One for the fourth consecutive month, according to NPD's figures for April.

While Microsoft confirmed that it sold 115,000 Xbox One units, Sony is yet to provide numbers for PS4.

According to NPD analyst Liam Callahan, console hardware sales increased by 120 percent in April compared to last year. He also said that sales of PS4 and Xbox One have more than doubled the combined sales managed by the PS3 and Xbox 360 through their first six months of sales.

According to the research firm, gamers spent $580.3 million at retail on new hardware, software, and accessories in April, up 17 percent compared to $495.3 million over the same period last year.

Hardware sales increased by 76 percent from $109.5 million to $192.8 million. Despite the strong hardware jump, software sales were down 10 percent year over year to $240.8 million from $267.8 million.

Although the PS4 is consistently outselling the Xbox One, Microsoft is trying its best to turn things around. Just a few days back, the software giant announced that it will soon launch a Kinect-free Xbox One for $399, putting its price in parity with that of Sony's offering.

An important thing to keep in mind is that these NPD numbers doesn’t include online or digital sales.

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