Nvidia Tegra 4
As previous Tegra chips, the Tegra 4 will once again be designed for high-end smartphones, and Nvidia is promising that it'll will really push the boundaries, not only in terms of pure performance, but features too. Arguably the most impressive demo that we saw was that of the new HDR photography capabilities made possible thanks to Tegra 4's excessive performance. If most of us "forget" about using HDR when we just want to snap a quick photo, due to the fact that it takes significantly longer to take such a shot, that is soon bound to change, as Nvidia promises that we'll be able to snap HDRs in about 0.2 seconds, which is a pretty decent timing, we have to admit. In fact, the processor is going to be so fast that the user will be seeing a real-time HDR feed from the camera before taking the shot, not a normal view. And since it's very likely that a lot of us will switch to HDR as their default shooting mode once this technology becomes available, it will indeed be quite valuable to see what the image is exactly going to look like before pressing the shutter.
The Nvidia Tegra 4 will be a remarkable technological achievement - in addition to the 4 CPU cores, it'll also pack a total of 72 GeForce GPU cores. All of this computational power is going to make features like HDR photography and 4K video recording/playback possible. In terms of numbers, the Tegra 4 promises to pack about 6 times the visual processing power of its predecessor. It is still unclear just how much of a performance boost there's going to be when executing standard tasks like browsing, but if the demos that Nvidia showed us are to be believed, there should be an overall performance boost of at least 2 times.
Thankfully, Nvidia has acknowledged the fact that this thing's going to be used in mobile devices, so it hasn't only worked on performance. The Tegra 4 chip is said to bring the quite decent 45% improvement in power management compared to Tegra 3.
An equally important news is that Nvidia is finally ready with its i500 Soft Modem, which means that it can now offer phone/tablet manufacturers a full chipset solution, complete with radios. Qualcomm is often preferred as an SoC supplier because its Snapdragon chips feature all the needed connectivity modules, but now Nvidia is doing basically the same, so things are bound to get very interesting.
Qualcomm Snapdragon 800
The chip maker promises that its Snapdragon 600, which is the direct upgrade point from the current S4 Pro, will deliver an overall system performance boost of about 40% compared to the S4 Pro. While that's fine, the Snapdragon 800 sounds even more exciting. The top offering in Qualcomm's 2013 catalog will sport the new Krait 400 quad-core CPU, which should be able to reach speeds of more than 2.3GHz per core. That should be enough to guarantee a performance boost of about 75% compared to the S4 Pro.
A new graphics chip, the Adreno 330, will be taking care of the graphical side of things. Compared to the Adreno 320, which is found in the S4 Pro, the Adreno 330 should be able to double the computational power. Тhe Adreno 330 will also support standards like OpenCL, OpenGL ES 3.0, Renderscript Compute and more, so users who end up rocking a Snapdragon-powered phone in late 2013 won't have to worry about game/app compatibility.
Like the Tegra 4, Qualcomm's finest will be powerful enough to support 4K video playback and recording, as well as better (faster) radios for LTE and Wi-Fi. What might have a bigger impact on the sales of these new Snapdragon processors, however, is Qualcomm's decision to invest in advertising its CPUs directly to the consumers. This way, it hopes that the processor will became a bigger factor for the mainstream consumer when choosing a new mobile device. We do think this is a smart choice, although we'll have to wait and see exactly how effective it's going to be. Meanwhile, Nvidia is already quite the name, so it probably doesn't have to worry too much about TV advertising at this point.
It's obvious that until we can spend some time with these chipsets and test them properly, we cannot conclude which one is going to perform better. Moreover, the responsiveness of each device will also heavily depend on the software platform and custom UI it uses, so having one powerful processor or another under the hood will not always guarantee the fluidity of the interface. All in all, we should be certain that both flagship chipsets, the Tegra 4 and Snapdragon 800, will be capable enough to power the next-generation of mobile phones and tablets, although we have to admit that Nvidia's proposition seems a tad more exciting at the moment. Not only because of its impressive features like the super-fast HDR shooting, but the fact that it will now be offered as a complete chipset solution as well (with radios and all), which might lead to some quite interesting developments on the mobile CPU market this year.
Nvidia's Tegra 4, or Qualcomm's Snapdragon 800 - which one do you think will be the dominant chipset for 2013?