Gadgetory

okay so we're here with nvidia and they're about to show us some benchmarks were very excited the moment of truth is upon us I'm neeraj shridhar he's with technical marketing with nvidia and he's going to show us a few things that demonstrate the power i'm taking for platform so i'll let him take it away sure hey guys are all of you must have seen the benchmark results of Tegra 4 that was recently published but many of you may be wondering whether Tegra 4 is really a low part ship and here I have a demo to prove that degra forked consumes really low power and can fit in phones and tablets what I have here is our Tegra 4 phone development platform obviously this board is really big it's not going to fit in a phone and the reason for for that is that it's got all these debug ports that are software engineers and our OEM partner engineers used to debug the phone to optimize it for performance and part and I hooked up this development go to a power meter through these wires and this parameter is basically measuring the power consumption of the phone at the battery terminal right now the phone is in standby mode and it's consuming less than 10 milli watts apart the sensitivity of this meter is like 10 nemeth 10 milli watt range that's why it's showing zero but the moment I turn on the display you'll see it will spike up a little bit but eventually it will settle down to around point seven words so basically when the phone is idle with the display on it's consuming only around Oh point 7 watts and most of that power consumption is due to the you know the display backlight power let me unlock the screen here and you guys can take a look at the meter there you go the phone is a sitting idle the power is settling down it comes comes down to 0 point 7 watts in idle mode so let me launch the gallery and play a 1080p video clip play start over and tilt this board a little bit so that the video comes to landscape mode and let's let the power settle down and what you notice is this is a 1080p screen the phone is decoding a 1080p high profile clip and you see it's consuming only around point 88.9 wats when you compare this to a computing system a 1080p phone like the droid DNA for example we found that the droid DNA consumes around 1.2 wats so Tegra 4 is actually considering twenty-five percent lower power than competing systems out there and it gives you approximately two to two and half hours more battery life so you get both high performance as you've seen in the benchmarks and low power from Tegra 4 excellently in terms of you know the relative performance a lot of the industry analyst from what I've read at least they say that Tegra 4i is not take her for can you speak to that a little bit well let us it's not Tegra 4 but it as performance comes close to photograph for work and user experience is close to Tegra 4 and the reason for that is you can play all the Tegra 4 optimized games on Tegra 4i because it's got a 60 core geforce GPU it has the same i 500 modem architecture in there it supports the same computational photography features the Tegra 4 supports and it's going to deliver great web browsing great gaming experience and reading long battery life so in all these aspects I I believe that you note 84 is much closer to Tygra for performance but and clearly it's aimed at the mainstream smartphone market and Tegra 4 is for the no superphone high-end hero smartphone and tablet markets a person with ridiculously high resolution right I was reading that apparently we're on the dawn of them having 4k 4k resolution display tennis is one factor you know it's not too far off there are they getting ready for it yeah but I mean take her for can actually support you know that resolution almost yeah the Tegra 4i think they have a demo downstair that shows Tegra 4 driving a 4k TVs can decode a 4k video flawless area you're very confident in saying that we can continue to increase performance but at the same time we can get more efficient devices right and this is technically possible you know yeah definitely because the process technologies you know continuously improving like you know a few years ago we were on 65 nanometer 40 nanometer 28 and they're going down and these processor technology improvements gives us you know more power efficiency and architecture is also getting more efficient like we went from single quote of dual core and sub well-known fact more course running in parallel you know can run at lower frequency and voltage and gives you better power efficiency so I think that trend will continue and as we provide more and more performance in these chips people will start you know using up this performance I mean if you recall a few years ago when nvidia introduced the first dual-core mobile processor people who are wondering do you really need a dual-core in a smart phones which three but they're pretty soon everyone moved to quad core because they realize you need this small performance and as they use these devices more often they want to use it like that own personal computing device and you know and that's what we're going at run speaking with our last night actually they were saying that within two years we'll have a proven performance to avoid used to experiencing a new pc could be yes in terms of android and whatnot i mean obviously I know anybody is a big supporter of Android but is it true really that Android can take full advantage of this mini-course is it you know the app developers have some flagging in a single core instruction set mentality not really I know Android as you know was based on linux and unix add support for multi-core and android today supports multi-core architectures like the operating system inherently is capable of scheduling threads across multiple cores through the web browser takes advantage of multiple cores exactly especially the chrome browser then supports multiple tabs can like scheduled threads on for each tab on different cores and demonstration that can perhaps show something to that effect this is a web browsing demo what we have set up here is this a Tegra 4 development platform and this is a nexus 10 that is powered by a dual-core a 15 and both these tablets are connected to a web server through you know wired Ethernet okay and the reason we are going wired and reason we are going to a local web server that is under this desk is to eliminate all the network latency the server load Layton sees and just purely benchmark the capability of the you know these two tablets so I'm going to launch this web page load test and what this test is doing is it's basically loading up 25 websites and these 25 websites are the top 25 sites that are most visited in the US and we rip those sites store them on this local server and I'm going to launch this test on the Tegra 4 and on the Nexus 10 and as you can see Tegra 4 is really like you knows loading this fast and the cash has been cleared the cache has been cleared everything is being loaded from the server and strike or a 15 the services quarry floating rate of things and so Tegra 4 will load these 25 pages in approximately 25 to 27 seconds and you'll see that soon so I gadget there yeah so there you go 27 seconds to load up 25 pages that's approximately a second and a half well the Nexus 10 takes anywhere between 45 to 50 seconds you know delivering a sixty to seventy percent performance benefit on the quad-core tegra for substantial program so really when do you think we're going to be able to see Tegra 4 devices in the wild earliest q2 of this year q2 yes yeah ziti and Toshiba already unknowns that you're working with us to bring the tablets and phones to the market and you'll see more devices show up early in 57 seconds for the nexus 10 the a-15 Joker versus the 27 seconds for the book almost two times faster and this is sort of the the fifth sort of ninja chorus yeah definitely yes so yeah tigra Flores has this 4+1 architecture with the fifth battery saver course right so the battery saver core itself is a you know cortex a15 goal but it has been optimized for ultra low power consumption so for example let's say right now the sitting idle doing nothing so we turn off all the four main course and just run it off the battery saver code and if the display is turned off and you're just doing you know social networks things in the background or playing musics all of that runs on the battery saver co nice and the fact that on Tegra 4 that battery saver code is cortex a15 it's much more powerful so it can handle more Orange yeah it can handle a lot more task in this low-power State San and are you know the four plus one technology is the second generation technology on tagged report which means we get even more power saving because we have optimized the algorithms further that's from nice thorough rundown I'm completely sold how much you guys are bringing to market thank you really one of this to say thank you very much for your time that's nice not congratulations thank you nice talk to you too all rights android authority we're going to sign off for today we pulled an all-nighter last night to try and get you some videos online we'll have lots more moves news on nvidia and lots more to come here from Mobile World Congress in Barcelona