Qualcomm Snapdragon S4 (Krait) Performance Preview - 1.5 GHz MSM8960 MDP and Adreno 225 Benchmarksby Brian Klug & Anand Lal Shimpi on February 21, 2012 3:01 AM EST
- Posted in
If you've been following our SoC and smartphone related coverage over the past couple of years, you'll probably remember how Qualcomm let us take home an MDP8660 from MWC 2011 and thoroughly benchmark it. Qualcomm has done essentially the same thing this year, this time sending their latest and greatest MSM8960 SoC inside the aptly named MSM8960 Mobile Development Platform (MDP) just before MWC 2012. The timing is impeccable as we're fully expecting to start seeing MSM8960 based phones next week at MWC, and we've been telling you to hold off on any smartphone purchases until the 8960's arrival. Today we're finally able to give you an indication of just how fast Qualcomm's next-generation Snapdragon S4 will be.
We've already been teased MSM8960 and Krait a few times, and have talked about the architecture and what to expect from the SoC itself. The super short recap is this: Krait is the name of Qualcomm's new out of order ARMv7-A compatible CPU architecture (previous generations of Snapdragon used Scorpion) which is designed for TSMC's 28nm process. Inside MSM8960 are two Krait cores running at up to 1.5 GHz, Adreno 225 graphics, improved ISP and Qualcomm's new baseband with support for nearly every air interface out there.
The MDP we were sampled is clearly a descendant of the MDP MSM8660 we were given last year, sharing the same black utilitarian look and purpose-built design, though it's notable that the new device is markedly thinner. MDP MSM8960 is running Android 4.0.3 at 1.5 GHz, and includes 1 GB of LPDDR2, and a 4" 1024x600 display. It's an interesting note to make that both Intel and Qualcomm have somehow settled on 1024x600 for their reference designs.
We also asked Qualcomm for a copy of the old MDP8660 for comparison purposes, just to see how far we've come since the first dual core Snapdragon SoC.
|Qualcomm Mobile Development Platform (MDPs)|
|MDP MSM8660||MDP MSM8960|
|SoC||1.5 GHz 45nm MSM8660||1.5 GHz 28nm MSM8960|
|CPU||Dual Core Scorpion||Dual Core Krait|
|GPU||Adreno 220||Adreno 225|
|RAM||1 GB LPDDR2||1 GB LPDDR2|
|NAND||8 GB integrated, microSD slot||16 GB integrated, microSD slot|
|Cameras||13 MP Rear Facing with Autofocus and LED Flash, Front Facing (? MP)||13 MP Rear Facing with Autofocus and LED Flash, Front Facing (? MP)|
|Display||3.8" WVGA LCD-TFT||4.03" SWVGA (1024x600) LCD-TFT|
|Battery||3.3 Whr removable||5.6 Whr removable|
|OS||Android 2.3.2 (Gingerbread)||Android 4.0.3 (ICS)|
We're taking a look at just CPU, GPU, and power performance today on MSM8960, as cellular baseband is disabled on the MDP just like it was when we looked at the previous MSM8660 MDP. We'll get a chance to investigate that further in the future, again right now the key areas are CPU, GPU, and power.
As we talked about in the previous MDP piece, the purpose of the MDP is just to serve as a reference design for both Qualcomm to get its Android port running on, and also for individual developers to profile and test their applications against. It's analogous to TI's OMAP Blaze platforms - you won't ever likely see one out in the wild, but it's a reference target that the silicon vendor leverages to port Android, and a piece of hardware that OEMs can use as a reference when they start customizing and building handsets.
Just like last time the MDP also comes with a software build that lets us easily enable or disable vsync on the device, restart surfaceflinger, and then run benchmark tests. There's no such analog for shipping retail devices, only development builds contain this functionality. As there are parts of each benchmark that could instantaneously peak over vsync's 60 FPS on some of the shipping platforms we're comparing to, we're providing results with vsync on and off.
In addition, last time when we ran tests on the MDP MSM8660 I noted that the governor was set to "performance" mode, which means it doesn't adaptively change CPU frequency as a function of load - it was 1.5 GHz all the time. This time the MDP MSM8960 came running with the much more typical "ondemand" governor selected, which does scale CPU frequency as a function of load, so there's less of a concern about the lack of pauses while the CPU changes performance states making results non comparable.
Post Your CommentPlease log in or sign up to comment.
View All Comments
metafor - Tuesday, February 21, 2012 - linkIt's Sense. If you look at some of the phones with a less bloated version of Android (like the Xiaomi phone used in the Vellamo benchmark article that runs the same processor as the Rezound but with MIUI), they score pretty close to the MDP scores.
Wishmaster89 - Tuesday, February 21, 2012 - linkThat is why I will never buy device that bares the mark 'with HTC Sense'.
They went one step too far with their customisations when they impacted performance of the device.
monoik - Tuesday, February 21, 2012 - linkDid you make your tests on Gingerbread SGS2? I'm getting very different results on Ice Cream Sandwich Cyanogen Alpha:
Linpack single 47.257 MFLOPS
Linpack multi 71.987 MFLOPS
non-cached anandtech.com about 4,5 seconds from touching "go" to the progressbar disappearing.
cached anandtech.com less than 2 seconds.
Stock browser. No overclocking. GT-I9100 Exynos version.
Kaboose - Tuesday, February 21, 2012 - linkI am going to assume the latest OFFICIAL OS released by samsung Anandtech is not in the business of benchmarking every different ROM or OS on every phone. You would most probably be getting different results running ICS Cyanogen. As far as I know ICS is only official on the Nexus.
monoik - Tuesday, February 21, 2012 - linkI assume you're right, so we're comparing apples and oranges here. No real value there, don't you think?
rahvin - Tuesday, February 21, 2012 - linkCyanogen is typically crippled by the fact that they are restricted to the open source versions. Especially in early release they don't have access to many of the customizations and binary code in release versions let alone per-release.
It's my experience that Cyanogen doesn't even come close to release performance or power use until about a year later. This is because it takes the manufacturers about 6 months to post their kernel source then another 6 months to port and modify for the cyanogen system.
So comparing a cyanogen alpha mod to a developer preview isn't even relevant, as was said.
tomhoward - Tuesday, February 21, 2012 - linkThere original SGS2 results were incorrect in the S2 vs 4S post a while back. There was a pretty big flame war in the comments from people with stock phones getting around 2000ms in Sunspider but Anandtech just ignored them.
B3an - Tuesday, February 21, 2012 - link@Brain or Anand...
Do you think that Win 8 tablets using ARM SoC's will likely have a SoC based on many of the components inside Krait? I know there will have be certain changes for WOA but the CPU and possibly the GPU (now that it supports Direct3D 9_3) will be used for these tablets?
And the same goes for ARM's A15, will WOA likely be running on SoC's based on that too?
kyuu - Tuesday, February 21, 2012 - linkIf I can get this SoC in a Lumia-ish Windows 8 phone with a decent screen and removable micro-SD storage, whoever makes that phone will have my money.
kyuu - Tuesday, February 21, 2012 - linkI mean Windows *Phone* 8 phone, of course.