This is why the ipad has inferior hardware and game capabilities than iphone 4

Discussion in 'iPad' started by Stirolak123, Dec 19, 2010.

  1. Stirolak123 macrumors 6502

    Sep 12, 2010

    "Hey guys, I did a lot of number crunching.

    Theoretically, having 1.28x as many pixels as the iPhone 4, it the iPad should only run ~80% as fast in terms of FPS. And, in fact, that is how it works out.

    I've analyzed not only the overall tests but the low-level 3d tests such as shader usage and fill rate from Though the iPhone's CPU is indisputably down-clocked, the iPhone 4 and iPad both use the exact same GPU core with the same memory bandwidth and clock.

    This is why Infinity Blade can have shiny armor on the iPhone 4 but not on the iPad; 20% difference can be huge when we're talking about the difference of a "shininess shader." However, the iPad can keep up with the iPhone 4 in terms of triangle throughput, etc. Which is why iPad HD games are smaller, for ex. Shadow Guardian is only ~3/4 the size on the iPad.

    Hypothetically, SG uses extra textures for effects, such as specular highlights (shiny things) or bump mapping. These are areas that would slow down a scene by about less than or equal to about 20%. They don't need to be included on the iPad version because they can't be used and maintain the same framerate.

    This is why you see shiny metal in Infinity Blade on the iPhone 4 and not on the iPad.

    But do not lose heart, iPad owners! The hardware isn't anywhere near pushed to its limits. Unreal Engine 3 and Rage were adopted from console technology; the fundamental technologies are different when you come from a regular video card model to a deferred tile-based renderer like the ones used in iPads/Pods. If you look at the quality of Infinity Blade or Rage, and consider that they actually have a good amount of room for optimization, firstly the iPad won't be left behind much longer, and secondly the games we see actually are not the pinnacle of what is possible on the current hardware.

    And iTouch 3g and iphone 3gs users rejoice; you get between 2/3 and 3 times better performance than the iPhone 4 with the same scenes, though your processor is slower!

    Of course, there's a little bit more to the 20% extra performance the iPhone 4 has. It has a tiny little screen. In my opinion, though things "really shine" on the iPhone 4 Retina sometimes, mostly, having the huge screen and playing field makes up for some lost details. But that's just my opinion."
  2. Tom G. macrumors 68020

    Tom G.

    Jun 16, 2009
    Champaign/Urbana Illinois
    Ok you put in all that effort for what purpose? :confused:
  3. sammich macrumors 601


    Sep 26, 2006
    I cannot go backwards from the retina display, performance or not. Pre-4G devices look like barf in comparison.
  4. GoCubsGo macrumors Nehalem


    Feb 19, 2005
    This is all well and good but I don't see the point.
  5. Built macrumors 68020

    Oct 3, 2007
    Los Angeles
    All that to convince himself that he doesn't need/want an iPad. :rolleyes:
  6. bri1212 macrumors 6502

    Feb 1, 2008
    The cheesiest

    When are you people going to realize that "retina display" is not a real thing, it is a marketing term. It is like craft calling their macoroni and cheese "the cheesiest" anybody who uses this term, as anything more meaningful is caught up in marketing and not anything real.

    As for me, the iPad has a great screen, I have never once looked at it and been disappointed. I do have the iPhone 4 and it also has a great screen. But to call any "pre 4g" barf is just ridiculous.
  7. rgarjr macrumors 603


    Apr 2, 2009
    Southern California
    I think a lot of people just use that word instead of just saying high res.
  8. ciaran00 macrumors 6502

    Mar 11, 2010
    I enjoyed reading his conclusions. Maybe you didn't.
  9. sammich, Dec 19, 2010
    Last edited: Dec 20, 2010

    sammich macrumors 601


    Sep 26, 2006
    Wow, attack much? It just so happens I'm referring to my iPhone 4 and it's display. Guess what, if Apple calls it a 'retina' display then I'm entitled to call it such as well. Just because I didn't capitalise the 'r' doesn't mean I'm using it as an adjective either.

    Btw, I'm as against the usage of 'retina resolution' as you are. Just make sure you know what battles you're picking. My usage of 'retina' is the point where at normal usage distance, the individual pixels of the display can't be seen.

    Here's something I made to make my point in another thread.
  10. gatearray macrumors 65816

    Apr 24, 2010
    To the point of your chart, because the iPad shares the same PPI as the 17" MBP, I would guess that means the iPad screen looks great, even though it is a "pre-4G" device, yes?

  11. darngooddesign macrumors G3

    Jul 4, 2007
    Atlanta, GA
    Its actually quite easy to go from a 4 to a 3GS.
  12. wingsabr, Dec 20, 2010
    Last edited: Dec 20, 2010

    wingsabr macrumors 6502


    Dec 13, 2008
    I found the op's statement well written and supported with good information.
  13. Ace134blue macrumors 6502a


    Sep 17, 2009
    I think most people already knew this, i know i did.
  14. Surely Guest


    Oct 27, 2007
    Los Angeles, CA
    Wait, you mean that the display isn't made of retinas?:confused:

    Sure it's easy, but I wouldn't want to.
  15. UrbanerMezei macrumors member

    May 28, 2010
    Ottawa, Canada
    Well thanks for putting in the effort but anyone who has ever been subjected to the iPad apps store probably came to this conclusion on their own.
  16. Ciclismo macrumors 6502a


    Jun 15, 2010
    How close are people holding the iPad to their faces if, during normal use, they can see the pixels:confused: I usually hold mine around 40-50cm from my eyes, at which point it looks like the iPhone4 display, which I tend to hold at around 15-20cm frommy eyes during use.
  17. mikechan1234 macrumors 6502

    Apr 9, 2010
    LOL! Agreed
  18. darngooddesign macrumors G3

    Jul 4, 2007
    Atlanta, GA
    While I didn't want to initially, I certainly wasn't going to pay that much for a bad antenna design**. So I'm back to happily using my old jailbroken 3GS. Now I hardly notice the lower res screen.

    ** I'm not looking to get into that old argument. All I know is that I could choke the data stream on any 4 I held.
  19. Consultant macrumors G5


    Jun 27, 2007
    iPad does not have inferior hardware except ram, but nothing can be called inferior. Games work great on iPad.
  20. ReallyBigFeet macrumors 68030


    Apr 15, 2010
    You know, number crunching tech specs is a pretty boring game. Just sayin'
  21. GnillGnoll macrumors member

    Sep 16, 2009
    Frequently less than 30cm, e.g. when I'm lying in bed or on the sofa reading.
  22. MrWillie macrumors 65816


    Apr 29, 2010
    Starlite Starbrite Trailer Court

    But the iPhone 4 has a lower resolution screen than the iPad. So high res would be incorrect when comparing the iPhone 4 to the iPad.
  23. jonnymo5 macrumors 6502

    Jan 21, 2008
    iPhone 4 has a greater pixel density than iPad and more RAM but I still find games more enjoyable on the iPad due to the larger screen.

    There are certainly a lot of assumptions made in the analysis. Is there data to back up the claims?
  24. Surely Guest


    Oct 27, 2007
    Los Angeles, CA
    Well, my reception is just as good- if not better- than my 3GS.

    /just sayin'
  25. LadyHoneyBabe macrumors 6502

    Mar 22, 2010
    I thought SJ upgraded the iPhone/iPod display so developers would upgrade their apps to a higher resolution. That way, the iPhone/iPod apps would look better on the iPad on 2x.

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