"I think actually, it's about the consoles because the software was really impressive," he said.
"Microsoft didn't do a very good job of explaining to consumers why they need to spend an extra $100 to get a camera and microphone array. Sony exploited that. They charged $100 less than Microsoft, so right now they're the winner."
Microsoft introduced a cloud-based Xbox One at this week's Electronic Entertainment Expo priced at $499. Meanwhile, Sony priced its new PlayStation 4 at $399.
(Read More: Sony PS4 Beats Microsoft's Xbox One—Pricewise)
On CNBC's "Fast Money," Pachter said, "PlayStation won the first skirmish."
In response to a question whether Microsoft had shot itself in the foot by requiring an internet connection for its Xbox One, Pachter said, "Big time."
"Microsoft is trying to solve a problem that doesn't exist," he said, adding that gamers "don't want Big Brother looking over their shoulder and forcing them to log on. It really is complicated."
(Read More: Sony's PlayStation 4: Streaming, Social & Mobile)
The new PS4 also meant good news for retailer GameStop, Pachter added.
"I think that what really matters for GameStop is that both consoles are going to allow disk sales," he said. "They both have disk drives. They're both going to use physical media. And so, GameStop's going to be around until disks are eliminated."
"I think it's going to be a fun year," he said.
(Read More: Winners and Losers From E3 Video Game Show)