CPU Performance

The original Note I played with was based on Qualcomm’s APQ8060 platform with MDM9200 baseband (the so-called Fusion 2 platform) and was for its time a pretty awesome piece of kit, combining LTE and a dual core SoC. The Note 2 I played with next was based on Samsung’s own Exynos 4412 SoC with quad core Cortex A9 at 1.6 GHz and Mali–400MP4 GPU. For the Note 3, I’m looking at a T-Mobile variant (SM-N900T if you want to be exact about it) which means it includes a Snapdragon 800 SoC, and Samsung has gone for the 2.3 GHz bin (really 2.265 GHz rounded up). Inside are 4 Krait 400 CPUs running at up to 2.3 GHz, and Adreno 330 graphics at up to 450 MHz, all built on TSMC’s 28nm HPM HK-MG process.

I should note that this is MSM8974 and not MSM8974AB which oddly enough one of Qualcomm’s customers already announced (Xiaomi for the Mi3) which boosts GPU clocks up to 550 MHz and the LPDDR3 memory interface up to 933 MHz, among a few other changes. I’ve confirmed that GPU clocks on the Note 3 are indeed maxing out at 450 MHz, and quite honestly it’s a bit early for 8974AB in the first place, though it wouldn’t surprise me to see Samsung eventually get that faster bin at some point and put it in something.

 

I should mention that the Note 3 (like many other Android devices - SGS4, HTC One) detects certain benchmarks and ensures CPU frequencies are running at max while running them, rather than relying on the benchmark workload to organically drive DVFS to those frequencies. Max supported CPU frequency is never exceeded in this process, the platform simply primes itself for running those tests as soon as they're detected. The impact is likely small since most of these tests should drive CPU frequencies to their max state regardless (at least on the CPU side), but I'm going to make it a point to call out this behavior whenever I see it from now on. Make no mistake, this is cheating plain and simple. It's a stupid cheat that most Android OEMs seem to be ok with and honestly isn't worth the effort. Update: Of our CPU tests only AndEBench is affected exclusively by Samsung's optimizations, the performance gain appears to be around 4%. Vellamo is gamed by all of the Snapdragon 800 platforms we have here (ASUS, LG and Samsung). None of this is ok and we want it to stop, but I'm assuming it's not going to. In light of that we're working with all of the benchmark vendors we use to detect and disable any cheats as we find them. We have renamed versions of nearly all of our benchmarks and will have uniquely named versions of all future benchmarks we use. We'll be repopulating our Bench data where appropriate.

CPU performance is honestly excellent. The Galaxy Note 3 is more or less the fastest Android smartphone we've tested up to this point. In the situations where we can do cross platform (OS/browser) comparisons, it isn't quite as fast as the iPhone 5s but in some cases it comes close.

AndEBench - Java

AndEBench - Native

SunSpider Javascript Benchmark 1.0 - Stock Browser

Google Octane Benchmark v1

Mozilla Kraken Benchmark - 1.1

Browsermark 2.0

Vellamo Benchmark - 2.0

Vellamo Benchmark - 2.0

GPU Performance

Samsung definitely likes to win, and the Galaxy Note 3 walks away with the GPU performance crown in literally every single offscreen test we've got here. The onscreen tests are obviously governed by display resolution, but all things being equal the Note 3 manages to get the edge over the PowerVR G6430 in Apple's iPhone 5s. It's also interesting to note that the Galaxy Note 3 appears to outperform all other Snapdragon 800 smartphones we've tested thus far. There's a couple of potential explanations here. First, the Galaxy Note 3 is using newer drivers than any of the other S800 platforms we've tested:

Note 3: 04.03.00.125.077
Padfone: 04.02.02.050.116
G2: 4.02.02.050.141

Secondly, it's unclear how much the manual CPU DVFS setting upon benchmark launch is influencing things - although I suspect it's significant in the case of something like 3DMark. 

Finally each manufacturer has the ability to define their own thermal limits/governor behavior, it could simply be that Samsung is a bit more aggressive on this front. We honestly haven't had enough time to dig into finding out exactly what's going on here (Samsung gave us less than a week to review 3 devices), but the end result are some incredibly quick scores for the Note 3. If I had to guess I'd assume it's actually a combination of all three vectors: drivers, high CPU frequencies and being more lenient with thermals.

Update: GFXBench 2.7 isn't affected by any optimizations here, but Basemark X and 3DMark are. We expect the Note 3's performance is inflated by somewhere in the 3 - 10% range. We're working on neutralizing this optimization across our entire suite.

GLBenchmark 2.7 - T-Rex HD

GLBenchmark 2.7 - T-Rex HD (Offscreen 1080p)

GLBenchmark 2.7 - Egypt HD

GLBenchmark 2.7 - Egypt HD (Offscreen 1080p)

3DMark Unlimited - Ice Storm

Basemark X - On Screen

Basemark X - Off Screen

Epic Citadel - Ultra High Quality, 100% Resolution

NAND & USB 3.0 Performance

Our Galaxy Note 3 review sample posted some incredible storage performance results, at least compared to all other Android smartphones we've tested. Sequential read and write performance are both class leading - the latter is nearly 2x better than the next fastest phone we've tested. Random read performance is decent, but it's random write performance that's surprising. Unlike the Moto X, the Galaxy Note 3 doesn't rely on a flash-friendly file system to get great random write performance - this is raw eMMC horsepower (if you can call ~600 IOPS that). The result isn't quite as good as what you get out of the Moto X, but it comes very close. Android 4.3 should bring FSTRIM support to the Galaxy Note 3, so as long as you remember to leave around 20% of your storage as free space you should enjoy relatively speedy IO regardless of what you do to the phone.

Sequential Read (256KB) Performance

Sequential Write (256KB) Performance

 

Random Read (4KB) Performance

Random Write (4KB) Performance

The Galaxy Note 3 ships with USB 3.0, unfortunately at least in its current state it doesn't seem to get any benefit from the interface. Although the internal eMMC is capable of being read from at ~100MB/s, sustained transfers from the device over adb averaged around 30MB/s regardless of whether or not I connected the Note 3 to a USB 2.0 or 3.0 host.

Update: USB 3.0 does work on the Note 3, but only when connected to a Windows PC with USB 3.0. Doing so brings up a new option in the "USB Computer Connection" picker with USB 3.0 as an option. Ticking this alerts you that using USB 3.0 might interfere with calls and data, but then switches over. Connection transfer speed is indeed faster in this mode as well, like you'd expect.

 

It only appears on Windows as well, my earlier attempts were on OS X where this popup option never appears. 

Battery Life & Charge Time Display
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  • doobydoo - Saturday, October 19, 2013 - link

    'The chipset IS in fact performing as the benchmark indicates'

    No, it isn't. The chipset CAN'T reach the same speeds for any non-benchmark application, for reasons such as battery life and heat.

    Your argument that bickering about performance is redundant is also stupid, because if it was, Samsung wouldn't feel the need to cheat them.
  • esterhasz - Wednesday, October 2, 2013 - link

    I would be much in favor of standardized qualitative testing. Have a set five people panel use the phone for a day in their normal workflow and use a questionnaire for performance rating. Sure it's subjective, but users are subjects last time I looked.
  • Demigod79 - Thursday, October 3, 2013 - link

    Although I too would like to a cheat vs non-cheat result in benchmarks (perhaps mark out cheat results in a different color or something), Anand did state clearly that this was cheating. There was no glossing over this fact, he laid it out explicitly and said that he wanted this practice to stop (for all OEMs that do it).

    He also mentioned that it's unlikely that OEMs will stop doing this. It's easy for the OEMs to do and makes their products look better (and frankly, it's only technical geeks who care about things like this, and we only represent a tiny segment of smartphone buyers). If it sells more products, then they will do it (although I find it about as frivolous as the Nvidia and then-ATI battle to have the fastest GPU, simply for the sake of wearing the performance crown for a couple of months).

    That being said though, this is benchmarks we're talking about here. Benchmarks do not represent real-world usage, and never have. All you have to do is look at 3DMark, which was criticized for some time as being too artificial (CPU speeds hardly mattered, whereas in real life CPU speed matters greatly). Benchmarks are, by nature, highly artificial tests meant to measure performance in a specific area. Although you can complain that cheating in benchmarks give a false impression of performance compared to other devices, you cannot say that such cheating misrepresents real-world usage since it doesn't represent real-world usage in the first place.
  • DanNeely - Tuesday, October 1, 2013 - link

    "The impact is likely small since most of these tests should drive CPU frequencies to their max state regardless (at least on the CPU side), but I'm going to make it a point to call out this behavior whenever I see it from now on."

    Unfortunately this isn't the case. By decompiling benchmarks and changing package names to disable the cheat function Ars Technica discovered that the GN3 is inflating benchmark scores by 20-50%. Most got a 20% boost; Linpack was an outlier at 50%.

    http://arstechnica.com/gadgets/2013/10/galaxy-note...
  • Anand Lal Shimpi - Tuesday, October 1, 2013 - link

    This is unfortunately something we've seen on a lot of devices, not just Samsung. Google Experience devices aren't affected, but we've seen it on the SGS4 and HTC One among others.

    Linpack isn't a very consistent test and it's too short to drive frequencies up consistently, which is why I'm guessing it's an outlier. The 20% end is higher than expected, it's entirely possible that Samsung is lifting a thermal limit as well as driving CPU frequencies up.

    I don't like any of it and I do want to see companies stop doing it. I was hoping we would see an end to it with the Note 3 but it looks like that was wishful thinking.

    Take care,
    Anand
  • Wojciech - Tuesday, October 1, 2013 - link

    Have you thought about doing an article about 'fixing' benchmark scores by other OEM's?
    If you're saying that HTC is doing the same with One then maybe LG is doing something similar and maybe even Sony.
    Normal behavior by Google experience devices would explain often lower scores than customized devices running on the same hardware platform.

    Don't you think that would be an interesting topic to examine?
    Right now I fear that more and more OEM's are going to start doing the same thing and the whole 'benchmark to determine real life performance' will be completely lost.
  • xype - Wednesday, October 2, 2013 - link

    You don't like any of it? But you still put up the graphs and numbers with an "Oh my."? People come here because AnandTech has a reputation of providing in-depth, honest reviews. Most people scan the text and go right to the graphs. Their takeaway will be a marketing lie that you didn't bother to correct because "A lot of companies do that."? Seriously?
  • Spunjji - Tuesday, October 8, 2013 - link

    If you skim the text and go to the graphs you will never, EVER get a representative review of anything. People come to Anandtech for analysis and they got that with this review. If they missed that then they might as well have gone to any of the other sites.
  • doobydoo - Saturday, October 19, 2013 - link

    Na, most people come to Anandtech because they know the graphics will have been performed in an objective and logical way. I would bet that the vast majority of readers don't read the text associated with such images.

    And that doesn't mean that they should go to other sites.
  • Squuiid - Tuesday, October 1, 2013 - link

    "It's also interesting to note that the Galaxy Note 3 appears to outperform all other Snapdragon 800 smartphones we've tested thus far. There's a couple of potential explanations here."
    You missed an explanation: Samsung cheat.
    From Ars:
    "The two functions applied to this list seem to be "PACKAGES_FOR_BOOST_ALL_ADJUSTMENT" which is no doubt the CPU booster, and "PACKAGES_FOR_LCD_FRAME_RATE_ADJUSTMENT" which makes it sound like they are also changing the display frame rate."

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