CPU Performance

Tegra 4 features the fastest ARM CPU configuration of any device we've ever tested. There are four Cortex A15 cores inside running at up to 1.9GHz. Note that 1.9GHz is the max CPU frequency even with all four cores active. Tegra 4 is an absolute beast. Do keep in mind that the Tegra 4 is actively cooled via a fan inside Shield, which does give it a bit more thermal flexibility than what we'd normally find in an Android tablet.


CPU-Z incorrectly identifies Tegra 4 as Tegra 2, the cores and frequencies are accurate though

Looking at even our limited CPU performance suite, the combination of ARM's first 3-issue out-of-order architecture, incredibly high clock speeds and a big chassis to dissipate heat is extremely evident. SunSpider performance is in downright low-frequency Core territory, and it just blows away anything else we've seen from any device running Android or iOS. The comparison in Google's Octane benchmark is still strong, although the Nexus 10 comes very close. Finally, we see great performance in Kraken as well. It's a shame we haven't seen Tegra 4 used in more places, because honestly this thing could make for a killer Windows RT device.

I threw in some of our early Snapdragon 800 performance data, and it looks like Tegra 4 still pulls away with a win in that comparison as well. ARM's Cortex A15 is just insanely quick. Again, there is a fan in Shield - that definitely helps make this possible.

For what it's worth, there's no funny CPU clock boosting going on upon launching any of these tests.

SunSpider 0.9.1 Benchmark

Google Octane v1

Mozilla Kraken Benchmark (Stock Browser)

Gaming on Shield - Android, PC, AR Drone 2.0 GPU Performance - 3DMark & Basemark X
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  • ChronoReverse - Wednesday, July 31, 2013 - link

    I won't comment on the Ouya but it's not really true that the Shield has the CPU power to go beyond existing Android platforms.

    The Shield still doesn't have sufficient power to emulate the PS2 so it's limited to PSP, DS and N64 class emulation.

    But the Snapdragon Pro already has sufficient power to emulate those at full speed (in fact, it's insufficient software optimization that holds back emulation performance). Actually even quad A9's can do it.

    So the Shield is stuck at a halfway point where it doesn't offer greater emulation capabilities despite being more powerful.
  • fr33h33l - Wednesday, July 31, 2013 - link

    Your comment seems contradictory to the CPU Performance section in the review, e.g. than not even Snapdragon 800 (itself significantly faster than Snapdragon Pro) can keep up with Tegra 4 in terms of CPU performance. Care to elaborate on your claims?
  • Arbee - Wednesday, July 31, 2013 - link

    Yes and no - it can do the existing platforms at a much higher degree of fidelity than the existing emulators, and it can run (ARM ports of) the best-of-breed PC emulators for those systems like bsnes and so on. It can run real current MAME instead of the gimpy circa-1999 "4All" version, it can run bsnes/higan instead of snes9x, and NEStopia instead of I don't know what. That in itself is a great upgrade for accuracy snobs like me, and then combine it with decent controls and it's great.

    I agree that a similar device with a Snapdragon Pro or Apple A6 wouldn't give away much in the performance department, but nobody's making one. Meanwhile, FedEx just showed up with my Shield :)
  • mamisano - Wednesday, July 31, 2013 - link

    Sorry if I missed it, what are the minimum hardware requirements for the gaming PC to stream to Shield? You used a pretty beefy system that is definitely not representative of the average rig out there.
  • PNN - Wednesday, July 31, 2013 - link

    Nvidia GTX 600 series or newer is required.
  • ssiu - Wednesday, July 31, 2013 - link

    Pretty beefy hardware required. From http://shield.nvidia.com/play-pc-games

    > GPU: GeForce GTX 650 or higher desktop GPU (Notebook GPUs are not supported at this time)
    > CPU: Intel Core i3-2100 3.1GHz or AMD Athlon II X4 630 2.8GHz or higher
    > System Memory: 4GB or higher
    > Software: GeForce Experience™ application and latest GeForce drivers
    > OS: Windows 8 or Windows 7
    > Routers: 802.11a/g router (minimum). 802.11n dual band router (recommended).
  • Roland00Address - Wednesday, July 31, 2013 - link

    Apple has trademark the term Retina Display. Thus nvidia can not use it
  • spigzone - Wednesday, July 31, 2013 - link

    Likely developed as in in house remote terminal for the Steam Box, where it would actually make sense, it's release into the wild indicates Nvidia ultimately lost to AMD to provide that hardware, likely due to publisher/developer pressure to go with a console compatible solution an AMD HSA APU that they could port to easily and cheaply.
  • chizow - Wednesday, July 31, 2013 - link

    Looks like an impressive first effort by Nvidia, especially since it's almost 100% home-grown. Not interested in it for my own user however, not yet anyways, for the reasons below:

    1) Android gaming market just isn't enough on it's own to justify this for me. Phone and tablet are enough atm for minor gaming on my mobile devices.
    2) I did not see any mention of this being used as a Windows Media Extender. If this were able to function as a streaming device, even for DLNA compatible devices, that would be a huge plus for SHIELD. It already has the mini-HDMI output and wireless capabilities, would just need the software.
    3) PC streaming to local network connection is nice, but if this could be expanded to remote locations with sufficient network connectivity, I'd be sold instantly.

    Overall I think Nvidia is building an impressive track record with their in-house hardware designs, I'm really hoping Shield does well enough that it warrants a 2nd iteration and improvements, but right now, I'm really not sure what it's future holds for many of the reasons cited in the article.
  • Arbee - Wednesday, July 31, 2013 - link

    There are DLNA applications for Android in the Play Store. I don't know how well they function, but perhaps one or more of them might work for you. Alternatively, if you run the Plex media server, their Android app *is* good.

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