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Posts: 124 | Thanked: 336 times | Joined on Mar 2013 @ Guatemala
#2571
SONY XPERIA-XA2 is more elegant than X, also more similary to beloved NOKIA-N9
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#2572
Hello sailors
someone here could connect the sd with ext4 for the sony X. I am reusing to use vfat on my X.
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#2573
Originally Posted by Fuzzillogic View Post
That's not what the spec sheet says. big.LITTLE is not just about clock speeds, it's about mixing low-powered and high-powered cores, using them when needed. The 650 does have a big.LITTLE set-up, the 630 hasn't.

My claim is that for most intents and purposes the XA2 isn't (much) faster than the JP1, despite the much newer tech.

From Wikipedia: Cortex A53 scores 2.24 DMIPS/MHz; Krait 300 scores 3.39 DMIPS/MHz. Converted to their maximum frequency on these devices: A53: 4928 DMIPS. Krait 300: 4746 DMIPS. Based on this, the A53 at 2.2GHz is barely 4% faster than a Krait 300 at 1.4GHz.

Sure there are other factors, and yeah the 630 has four times the cores, but I'll kinda doubt you'll notice that when doing some browsing.

Given my experience with a A53-powered device, I'm not too compelled to buy another one.

The 630 is big.LITTLE, two discrete sets of cores, they're just all A53's. Remember, the 650 spec sheet doesn't indicate it's big.LITTLE, either, it just denotes two obviously separate groups - 2x A72 + 4x A53.

"The Snapdragon 630 SoC uses a familiar octa-core Cortex-A53 CPU configuration. Unlike the Snapdragon 625/626 that it replaces, the Snapdragon 630 has a more distinct big.LITTLE arrangement with four A53s running at up to 2.2GHz (the same as the S626) sharing a 1MB L2 cache and four more A53s only reaching up to 1.8GHz and sharing a smaller 512KB L2 cache. While there should not be much difference in CPU performance and power compared to the Snapdragon 626, the Snapdragon 630’s Adreno 508 GPU performs 30% better on average than the S626’s Adreno 506 GPU. It also supports Vulkan and all of the latest 3D graphics APIs at resolutions up to 1920x1200. The Hexagon 642 DSP still supports Qualcomm’s Snapdragon Neural Processing Engine SDK for machine learning and TensorFlow, but does not share the Hexagon Vector eXtensions (HVX) microarchitecture of the more powerful Hexagon 680 and 682 DSPs."


That said though, the A72 cores on my Xperia X rarely ever cycle up under most load conditions and use cases. That indicates that, more often than not, the A53's are doing the bulk of the heavy lifting.

The A53's on the Xperia X are the same clock as the JP1. The Xperia X just has double the cores, much wider bus, much faster RAM.

The 630 is the same comparison. Yeah, you won't notice it just browsing, but you will notice the reduced power consumption, newer technologies (like Vulkan support in the 630), bigger battery and reduced heat. That's the point. I'm not saying it'll be like going from an AMD Duron to a Threadripper. I'm saying the power consumption reduction granted by the newer fab, the newer technology potential (faster eMMC, etc.) makes it attractive.

snapdragon 400 = 533MHz RAM
snapdragon 650 = 933MHz RAM, big.LITTLE
snapdragon 630 = 1333MHz RAM, big.LITTLE, hugely better GPU and better LTE modem, 14nm fab

I mean, I get it, on paper it looks like the same tech. It isn't. There are many more factors than just A53 cores.

Edit: some synthetics:

geekbench 4.1/4.2, 64-bit multicore:

snapdragon 650: 2869
snapdragon 630: 4170


kraken 1.1:

snapdragon 650: 3555
snapdragon 630: 9584
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Last edited by deprecated; Today at 21:17.
 

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#2574
Originally Posted by karlos devel View Post
SONY XPERIA-XA2 is more elegant than X, also more similary to beloved NOKIA-N9
Yeah I thought so too! I feel like the XA2 was chosen specifically for that appearance... kind of a nod to times of old.
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#2575
Originally Posted by deprecated View Post
geekbench 4.1/4.2, 64-bit multicore:
kraken 1.1:
These are not the tests. Give me a linux kernel compilation time on both, then we'll talk (I'm not asking for SPEC ).
Also XA2 is 1mm wider than X (and X is already too big) - speaking of N9 resemblance...

PS Sony and Jolla: xz2 compact, please?
 

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#2576
Thanks, I stand corrected.

I do find those benchmarks indicative for the actual problem: the A53-cores. The Kraken benchmark runs about 3 times slower on the 630 than on the 650, indicating that web browsing is severely hampered by these cores. And given that browsers still aren't all that multithreaded, more cores won't help.

I ran Kraken on my JP1. Obviously I don't have Chrome, so direct comparison to the numbers you provided is not really possible. (Although, on my desktop, Chromium and Firefox are 1053ms and 908ms, so not that far apart)

Firefox 60.0.2 (Via AlienDalvik): 14553ms
SFOS Browser 2.2.0.29: 12464ms (a bit faster, I didn't expect that)

Could someone with a Xpera X or XA2 run these benchmarks on Firefox as well? Then that might be a better comparison.
 
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Posts: 124 | Thanked: 336 times | Joined on Mar 2013 @ Guatemala
#2577
I prefer wider but with good hardware, that slim with bad hardware. I am not fan of qualcomm, I wish to see sailfish running on a OMAP 6 device.
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