The information we have on this so far comes straight from what Nvidia has released, so we'll be interested to put these claims to the test in our test labs, but the long and the short of it is that Nvidia is claiming a 40 per cent reduction in power when you compare a single 1GHz A9 processor running the same workload as the dual-core architecture.
This claim is based on the concept that to manage this sample workload, the two processors need only run at MHz each, and the combination of this requires 0. Nvidia has written power-r management algorithms into Tegra 2 so that the processors dynamically adjust frequency based on the tasks at hand. While this example holds true for a majority of smartphone use, there will probably be times when both processors are required to run at high frequency and battery life may suffer.
As battery life is continuing to be one of the major sticking points for smartphone users, we'll be keeping a close eye on this area of performance when we get our hands on a device. Nvidia won't be in the dual-core game by itself. Potential customer Samsung is also developing a dual-core multiprocessor called Orion, the specs of which closely resemble the Tegra 2, but with a different graphics unit, among other differences. Orion will also support multiple storage types including standard computer hard disks and solid-state storage, fuelling our curiosity about which devices these chips may ultimately power.
Motorola Xoom : Motorola's unannounced inch Android tablet will be one of the first tablets to market showcasing Nvidia's chipset.
LG tablet : LG will follow up its smartphone announcements with a tablet reveal in February. This device will run on Tegra 2. NVIDIA claims a x performance increase stemming from higher clock speeds and more memory bandwidth. So, the benchmarks. A performance advantage here isn't unexpected. I ended up with Run the averages, and you get Based on some input from Imagination and other Galaxy Tab users, we decided to retest the Galaxy Tab, since our results were a good bit lower than what they were reporting.
And on re-running the Quake 3 benchmark, I got results in the I ran it over 50 times trying to replicate the previous scores, but under no conditions settings, background applications, etc could I get anywhere near my previous result. I know for a fact that the settings were all correct and that there were no previously running applications, so I really have no idea why I got a framerate that low, much less why it was repeatable.
If you're curious about the transforming phones, check out the Asus PadFone Flashback article. The chipset once again tried to climb to the top of the charts and was indeed quite fast in multi-threaded tasks, but Qualcomm's dual-core Snapdragons edged it out in single-threaded performance.
While Samsung was already using its own Exynos chips, it resorted to Nvidia's Tegra chips for a few models. More often than not, however, Samsung used Tegras in tablets. As did many other manufacturers. Remember the Nexus 7, Google's first tablet?
Yep, there was a Tegra 3 brain inside. Even the premium Pixel C slate used a Tegra, though the much more powerful X1 chip. There was also the Surface 2 with Tegra 4, but RT never took off. Windows 10 is now perfectly happy to run on ARM, though few devices make use of that. Sony has some memorable examples of a Tegra devices too, like the Sony Tablet P - a dual screen clamshell device that is the grand-daddy of the Microsoft Surface Duo.
Nvidia released a few tablets of its own based on Tegra K1. There was even a weird Shield device that looked like a game controller with a flip up screen. However, the best-known - and certainly best-selling - Tegra tablet today is the Nintendo Switch. Yes, the portable game console is powered by the Tegra X1 seen in some Android tablets.
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