You must really have little knowledge of the topic we're discussing if you need proof ^^; When we see differences as larger as 720p vs 1080p (a 125% difference, scaling up of course, since that's the direction PS4/X1 comparisons tend to be done in) a good chunk of it can be credited to poor optimization. That said, here are a few examples of games with performance variations of 40%+ (I've bracketed the percentage for each). For reference, 900p + 44% = 1080p.

- AC4 (44%)

- BF4 (56%)

- COD:G (125%)

- Metro R (40%)

- Golf Club (125%)

- PvZ:GW (44%)

- SW (44%)

- Theif (44%)

- MGSV:GZ (125%)

- TF (44%)

Then you have unreleased titles such as PES15, SOM, TW3, LOTF etc that have all reported possible resolution variations (44% to 125%, though there are no specifics for TW3).

It's also worth mentioning games like SEIII, Tomb Raider, M:SS etc. Those games have significant frame rate advantages in favor of the PS4 (similar in scale to the resolution differences listed above).

In-fact the absolute smallest resolution difference on a non-parity title is Watch Dogs at 29% (plus AO on the PS4). So there is only a single title that comes within even the upper limit of your "estimate", but i found 10 to 20 at 40%+ with a 2 minute google.

So as you can see, the PS4 has a rather obvious advantage both on paper and off. The most common advantage is around 40 - 50% (similar to the difference seen in spec comparisons). We can spend all day debating where specifically that difference comes from, but in the end it's still there.

There's my "proof", where is yours to back up this 20% - 30% claim (or 15% to 20% :p)? Please feel free to build an argument based on loose connective assumptions. That's what people usually do around here when they can't think of a proper one ^^ Or you could divert from the core topic, that works as well.

Keep in mind the following when reading what some here post, especially if they use tflops for comparison.

The tflop number is the maximum both consoles are able to achieve at the best circumstances and be prepared for that they almost never reach these numbers. Same applies to ram bandwidth and so on. These are all theoretical maximums.

Small hint: Both consoles sacrify 2 cores for the operating system. This "power" is automatically lost, for both. And both consoles sacrifice RAM for their OS. Furthermore both consoles feature a full multitasking OS while one was specifically built in a complex way, the other is a bsd clone customized for gaming needs.

What is the conclusion? Don't rely just on specs as they don't tell you how "real world" performance is going.

The problem Xbox One has to face now is that deferred rendering is not very suitable for the size of the esram which makes games render at a lower resolution. This is not a problem with the power itself (while this might also be true, but not in the first place) but especially with the size of the ESRAM.

But if you look at, let's say Forza Horizon 2, you can squeeze out nice graphics at 1080p but devs are using Forward+ instead of deferred rendering so to save a lot of bandwidth.

We will see if other devs adjust their engines just for Xbox One or if they continue to don't care and deliver worse than possible multiplatform games.

Is that the voice of Sully at the beginning of that video from Uncharted?  Certainly sounds like it!

there is a notable difference in power, sony fans will act like its bigger than it is and xbox fans will act like its smaller.
As a developer, there is a difference, depending on what you want to do its either small inconvenience or a large matter that results in having to make multiplatform games paired back a little or develop two versions of the same engine to support the differences enough to get around the need to scale back assets.

Regardless, this difference isnt going to get bigger, but it isnt going to get smaller either.

I think the concensus now is that the x1 version is around 900p with some secondary issues like poor AA. Also the PS4 version is NOT 60fps fwiw. So this is more of the same 40ish% gap here.

Wrong thread title: scientists proved that games on XBOne don't run, they walk.     

I did got to see the game running today.

It is definitively not 1080p and due the lack of AA I can see why people guessed it was 720p but I'm not sure about that... looks over 720p (900p maybe).

The game runs at 30fps.

The PS4 game didn't run at solid 60fps too... it is more in line with inFAMOUS... so it is not bad at all.

Where did you get the chance to?

Thread title should be changed, even as a question there's no credible reason to think that the x1 version is 720p now. Too many good sources estimate 900p + or - a little. Other bad thread titles are the "720p som belgian" one and the idiotic "x1 sold 100k in China" title. People should be more careful with things that are easily translated.

Have you played the PS3 exclusives? Because I have not seen a XB360 game looking good as UC3, TLOU and GOW:A...