Sony is confidently boasting that PS4 is the most powerful gaming console ever. Microsoft concedes that Xbox One can't meet PS4 spec--but says that the differences between the two consoles have been "overstated." But what do developers say of the supposed gulf between the two consoles?

A new report suggests that the lead PS4 has is still "significant" and "obvious," with PS4 offering up to 50 percent more performance than Xbox One.

Edge contacted numerous game development sources that are working on multiplatform titles. One example given to the site says that, without optimization for either console, a build will run at around 30FPS in 1920x1080 on PS4, but "20-something" FPS in 1600x900 on Xbox One. That certainly is both "significant" and "obvious."

Microsoft has recently boosted Xbox One spec, but one developer told the site that while "the clock speed update is not significant, it does not change things that much."

There are still instances where Xbox One will still have an advantage, however. "Let's say you are using procedural generation or raytracing via parametric surfaces--that is, using a lot of memory writes and not much texturing or ALU--Xbox One will be likely be faster," one developer said.

It's important to point out that it's still early days for both consoles. Microsoft, in particular, has suffered from poor drivers. Described as "horrible" by one dev, their drivers have been hurting performance. Undoubtedly, that's something that will continue to improve after the console's launch.

And while PS4 may have the edge in terms of performance, gamers are unlikely to notice--not at launch, anyway. "The poor [graphics] drivers have made it difficult to push either of them, and the developers aren't familiar with the hardware yet," one developer said. Another echoed that sentiment, saying that developers need more time to learn each console's quirks and take advantage of their unique features.