System Performance Cont'd

Continuing on with our more game-like benchmarks, tests like 3DMark and GFXBench are supposed to replicate gaming workloads to help determine relative performance in most common 3D games. In the case of the iPad Pro, the GPU is a 12 cluster variant of the PowerVR Series7XT GPU architecture. This is double the number of clusters relative to the A9’s GPU, which should prove to be quite impressive judging by the GPU performance that we saw in the iPhone 6s.

3DMark Ice Storm Unlimited - Physics

3DMark Ice Storm Unlimited - Graphics

3DMark Ice Storm Unlimited - Overall

The iPad Pro manages to maintain superiority in 3DMark, but we're really starting to see the limitations of this test. The physics test generates non-sequential data structures with memory dependencies, which can penalize devices with lower core count and clock speed, but the workload is able to be spread across multiple cores to exploit TLP, which benefits devices with more real cores, or virtual ones (hyperthreading). We also see that the graphics test isn't really scaling well at this point as it's just too light to take advantage of the full potential of the A9X GPU. This likely also explains why the iPad Pro isn't closer to the Surface Pro 4 in performance on this benchmark, given what we know about A9X's GPU.

GFXBench 3.0 T-Rex HD (Onscreen)

GFXBench 3.0 Manhattan (Onscreen)

GFXBench 3.0 T-Rex HD (Offscreen)

GFXBench 3.0 Manhattan (Offscreen)

In GFXBench we can see the major benefits that really come with the larger GPU. It's pretty obvious here that clock speeds are basically identical when comparing the A9 GPU and A9X GPU as the scaling is almost perfectly double. In this benchmark the iPad Pro quite handily beats the Surface Pro 4, but it's important to keep in mind that the Surface Pro 4 is running a higher level of precision and that the iPad Pro is running OpenGL ES rather than OpenGL in this test, so it isn't strictly apples-to-apples (nor is such a thing truly possible at this time). Overall though the GPU of the iPad Pro is incredibly impressive, and I doubt that anyone will really have issues with gaming performance on this device.

NAND Performance

At this point it’s pretty well understood that storage performance can often be a gating factor in performance. Although caching is an amazingly effective method of hiding memory latency, for the first hit it’s mandatory to miss the cache unless you’ve managed to prefetch the data in question. The other issue where storage performance becomes obvious are cases where it’s necessary to commit data to storage first. Some cases where this is going to be obvious is app installation or iCloud restores, especially when network performance is at the point where installation can actually be gated by writing to disk rather than downloading from the network.

In the case of the iPad Pro, Apple claims that they’ve implemented a storage controller comparable to some desktop SSDs. It turns out that this controller is a familiar one, as the storage controller identifies itself as the APPLE SSD AP0128K in the case of this review unit. It turns out that everything about this SSD is identical to what we saw in the iPhone 6s as well, down the use of Hynix for at least one of the NAND vendors and the hybrid SLC/TLC architecture discussed in previous articles. In order to test how this storage solution performs we once again use Eric Patno’s StorageBench, which provides a rough analogue to AndroBench 3.6.

Internal NAND - Random Read

Internal NAND - Random Write

Internal NAND - Sequential Read

Internal NAND - Sequential Write

It turns out that in this test, performance is basically identical to the iPhone 6s. This isn’t quite the equal of something like the Surface Pro 4’s PM951 SSD, which has the advantage of more NAND dies working in parallel, but given that the iPad Pro PCB size isn’t going to be anywhere near that of the Surface Pro 4 it’s likely that this is a concession to gain better battery life. I definitely wonder what performance would be like relative to a Surface Pro 4 if the iPad Pro had a 512GB SKU, but given that the iPad Pro tops out at 128GB this isn’t really a question with a relevant answer.

System Performance Battery Life and Charge Time
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  • Relic74 - Saturday, February 27, 2016 - link

    Citrix support isn't very good on the iPad Pro, we have one on the office as a test bed. We've gone with ChromeBooks instead, a little cheaper, though not by much as we bought the Dell 13" ChromeBooks which are about 600 bucks. Works fantastic as a terminal machine. The iPad Pro is just to expensive for such a thing and it doesn't support a mouse, plus external display support absolutely sucks. Their was black bars, resolution looked bad, doesn't support extending the desktop (an absolute must have feature) and the DPI is so large it looks like a children's OS. Though are biggest complaints was the lack of multi-user support, horrible file management, no Open ID support and can't run apps in the background. The iPad Pro just isn't an Enterprise computer. They might use them as data entry and retrieval devices but as an Office computer, nope.
  • name99 - Friday, January 22, 2016 - link

    Your comment, like the use of the term "Productivity software", reveals the sort of white collar snobbery that is rampant in supposedly classless America.
    I agree that an iPad (and for that matter a Surface) are highly sub-optimal devices for the tasks of large amounts of writing, research, constructing spreadsheets, debugging code, etc.

    But those are not the only jobs in the world. Musicians are also professionals (in the colloquial, if not the legal) sense, as are designers/drawers/artists, as are those using these sorts of tablet devices to hold large numbers of technical papers [my particular use case] (ie scientists/researchers), or blueprints or CAD/CAM material or medical diagrams.
    To claim that those people are not doing "real" jobs, or that they don't "deserve" or "need" a device optimized to their usage models (which are much heavier on finger or pencil/stylus/brush style manipulation, much lighter on keyboard manipulation) is basically one more version of the usual "look at me, I'm the most important person in the world, and only my needs matter".
  • Constructor - Saturday, January 23, 2016 - link

    Perfectly said!
  • MaxIT - Saturday, February 13, 2016 - link

    Absolutely correct! To some people on this (and similar) forum if you aren't doing Photoshopping, 3D modeling , CAD or extensive data querying you don't deserve the term "Pro".
    I know of people making a lot of real money, real big money, using just a notepad and a word processor. Or a sketch device.
    In my organization we are managing $36 millions gear with an outdated iPad 4 and PROFESSIONAL APPS (the same apps someone here keep saying it doesn't exist). But we don't deserve the term "pro", do we ?
  • Wagobert - Saturday, January 23, 2016 - link

    regarding software, I have to agree with Ddriver. On the "SOC Analysis: CPU Performance" page, the authors used Apple XCode (running presumably on a Mac). Could Apple's own XCode run on this hardware? This is being discussed on multiple sites, and the consensus seems to be that memory and IOS are the problem - see here, for example: https://www.quora.com/Will-Apple-make-an-iPad-Pro-...
  • Constructor - Saturday, January 23, 2016 - link

    Sure it could. The performance is definitely there. Replicating the entire UI would just be a pretty big task, and larger screens are usually a big advantage in coding and debugging.

    There's also the matter that Apple is reluctant to allow binaray code generation directly on the device because it could be abused for attacks (because the code signing key would have to be on the device and might be exploitable through other vulnerabilities).
  • MaxIT - Saturday, February 13, 2016 - link

    Maybe in the future, but not yet. To do some serious developing you need multiple windows, a good workspace and maybe some virtual machines... That means a big screen, a lot of ram and a different UI.
  • Relic74 - Saturday, February 27, 2016 - link

    It can but Apple won't release it for this, it's not a laptop.
  • zeeBomb - Saturday, January 23, 2016 - link

    Well I'm late
  • akdj - Monday, January 25, 2016 - link

    Apparently you're oblivious to the amount of resources, time money and man hours being devoted specifically to the development of mobile, companion apps from the likes of MS, Adobe and AutoDesk.
    None want to be left in the rear view mirror!
    Also, to whoever was beating up on the 2 dozen MS apps, there's a 'Glass' app used specifically for Office suite, scanning and the like. Maybe even 'Office Glass' --- but v1 of the suite's 'drop' a year ago ---or has it been two now? Doesn't Matter, I was on board day one and have had nothing but luck and reliability with it. Both on iOS and OS X. Adobe's companion apps JUST underwent ground up re-writes to support 64bit, handoff amnd it's continuity with a home, studio, desk or one's 'main production' --- not necessarily "pro" rig, but possibly the machine with peripheral options, storage, more power with. 110v constantly, etc. I received mine November 6th, ordered around a week, maybe two post-launch. I've owned every iPad and deploy them now and since iPad 4 'in the field' for my business our family's run for three generations. As well as a dozen full and two dozen part time & temp employees, plenty of us pay our mortgages, car payment(s), daycare and taxes using the iPad as our primary, if not 'only' computer while 'making paper' (we own/operate a flight service and mobile A/V production company in Alaska - I've been flying myself nearly thirty years --- & the ½ pound replacement (Mini 4) or 1.5 pound long trip replacement, iPP is an incredible relief from my 45-60 pound flight bag. Faster, more reliable and up to date than anything 'printed' as well --- its ability to file my flight plan, calculate fuel, diversions for safety, real time traffic, weather, or airport 'issues'. Jeep charts, plates 'no fly areas' maybe -- or any diversion from routine T/O or landing cycle knowledge is paramount & the more details, the better when you're flying in & outta the same areas son long
    In the air, test/beta versions of NextGen (ADSB's successor and the update to America, if not the world's ATC system --- with 3D display or HUD showing traffic, terrain, and their headings, altitude and speeds - as well, and most importantly where they're going to, whether their path crosses mine @ a certain moment in the future ...& with the info, both (if equipped) planes will be instructed to change heading, decrease/increase speed or altitude. TCAS (collision avoidance) and 'always on' transponders w/GPS & better tracking then radar and the many blind spots on the planet to radar --- as travel increases, your idea of professional should be changing - as these guys are faster than anything we used on our desks in 2010, just six years ago. Solid state, blazing fast storage, always on and always fast LTE connectivity, wifi if you're in range. The horsepower (I've yet to notice frame drops other than in the App Store as its repopulating during an extensive swatch and I'm deep down) to run most anything developers can dream up now and will continue better their apps, integration and aggregation with the 'mainframe' of the business ...whether you're an engineer, architect, car salesman or waitress. Teachers, UPS & FedEx'll update their tabs so,easy and the garbage men can get rid of pen and pencil as well as the monstrous waste of paper generated daily to be thrown straight into the trash.
    iPad Pro, the Surface Pro --- they're 'words' but my definition of professional is the ability to help me make money. A tool, usually an invaluable one that's evolved enough in the capacity I need it for to be considered Revolutionary
    That's 2010, 2012 the original and the Retina display 'then 2015, with iPP.
    I'm with the author(s). I've owned and LOVE Pencil, don't need or want the KB cover after using it for a week. At all
    9one thing on the UI side of the equation is the very excellent OS X like software keyboard layout, the Pencil as a helper for typing and picking suggested/predicted words above the keyboard I've found. And with common punctuation including 'shift' 5 for the % -- shift keys on both sides, double shifting does rage cap lock thing and we've got tab/delete, larger emoji key w/numeric and keyboard switcher in both sides of the space bar. The clipboard, undo and redo are awesome as are the 'up down' form filler/maneuver buttons on the right top of the KB UI. Well enough laid out, I've found a very comfortable case in the lap, perfect angle typing with my left thumb and right hand using/holding the pencil as my second hand. Worlds a treat, hard to explain correctly but efficient, effective and my near new 15" 2015 rMBP has been lonely since Thanksgiving (I'm floored by what Adobe's accomplished with their creative cloud, my iPad Air 2 or Pro mad their aggregation with OS X on my iMac, the Mac Pro. Or earlier mentioned MacBook. They're ALL Over It! The software companies are done boxing DVDs up with 300 page instruction manuals and the packaging costs. Get used to it. Lap/desktops aren't going anywhere but iPads can certainly be the tool of choice, primary tool to get their job done, inventory counted or their record produced!
    Pro football today had a bunch of problems on the sidelines today with their Surface Pros, had to 'turn em off' for a few. Both teams ...til they 'rebooted the system' lol
    iPads man. They're for pros that want to look, sound and be prepared professionally with reliability and extensive functionality, support and longevity. 'Imstiimown kids still use and it's still working great, the original iPad. Also have the Xoom, predecessor to Nexus. Doesn't 'light up'. It's. Broked.

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