Stadia is now free! Or rather, any Google user can now sign up to the service and access the games library without having to subscribe to the Pro tier or purchase the firm's bespoke controller and Chromecast Ultra 4K HDR receiver. It's a good jumping on point for users interested in the service and as we shall discover, accessing Stadia via Chrome browsers, smartphones or tablets can actually offer a key advantage over the Pro-level 4K Chromecast Ultra experience. In returning to Google's cloud service, we also wanted to take the opportunity to go back to Doom Eternal and revisit our latency metrics -
a key point of criticism in prior coverage. Was Stadia just having a bad day when we tested it? Was there something wrong with our network? Could we bring latency back down to the impressive level we saw in our
Stadia review?
The good news is that we have managed to reduce latency in our Stadia test set-up, improving the Doom Eternal experience significantly. id Software's port succeeds in pushing an 1800p resolution, excellent visuals and a highly consistent 60fps. However, fast response is a must for a fast-paced first-person shooter and our initial results just weren't good enough. We logged a range of latency results between 79-100ms
extra compared to the Xbox One X version of the game - a surprise given the 300Mbps fibre connection behind it. Google itself asked for permission to access our telemetry (which we granted) but our end goal is to give the system and the software the fairest assessment we can, so we spent a lot more time investigating the metrics ourselves and looking to optimise the experience.
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Meanwhile, the variability in our latency tests is also a concern, even if +45ms was ultimately achievable via a Chrome browser. In asking for our telemetry while using a Chromecast Ultra, Google mentioned to us that they're aware of extreme cases involving a large number of connected devices causing latency issues at the user side. Initial results with all devices stripped out of the network showed a good improvement, but to lose that improvement in identical conditions the next day was dispiriting. Whether latency was +58ms vs Xbox One X or +100ms, the connection was rated as 'excellent' in all cases when the variation in the gameplay experience was easily felt. Stripping out all WiFi from our setup - up to and including the Stadia controller - solved the issue and does suggest a problem at our end (the controller worked fine in the Stadia review sessions, after all) but it would have been useful to get some kind of feedback from Stadia itself when our experience was running under spec by such a margin.
At this point, we've tested all major Stadia ports and there remains the sense that there's a wealth of potential here but the execution isn't entirely right. There's still the excellent accessibility aspect - super-fast loading of our entire library of games isn't to be sniffed at. And it's great to see titles like The Division 2 hitting 60fps when Xbox One X can't, meaning that developers can tap into CPU performance that's much higher than console counterparts. However, this is offset in many cases by quantifiably lower GPU performance from a graphics core that was promoted as being considerably more powerful. Meanwhile, it's difficult to recommend Stadia's premium subscription when 4K - or sub-native 4K - rendering can come with a profound performance penalty in so many games. All of these areas can and should be addressed but the inconsistency in our input lag testing is another concern. On the one hand, it's good that after extended testing and re-testing, we were able to bring latency down to a much more manageable level - but on the other hand, it felt like we were operating in the dark, with the Stadia system itself offering no indications that anything was wrong at any point, nor offering any advice on correcting the lag issues we encountered. Relatively speaking, it's still early days for Stadia - and cloud gaming in general - so hopefully platform stability and proper tools for tuning the experience will be delivered over time.