Discussing the performance of the Tegra 3 SoC

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Ipad 3's gpu, about twice the performance of the One X, but in OFFSCREEN 720p mode:

Check it out, http://glbenchmark.com/result.jsp?be...nd=all&gpu=all

Would that mean there are no worries for game's performance? Since we have much lower resolution?

What i was thinking is that game makers who optimize their games for the new ipad, wouldn't make them run at native resolution, but something around 720p, and that would mean our One X is simply incapable of running ipad's optimized games, with less than half the performance of the ipad.

What do you think?

Originally Posted by eeeeeee

Check it out, http://glbenchmark.com/result.jsp

Would that mean there are no worries for game's performance? Since we have much lower resolution?

What i was thinking is that game makers who optimize their games for the new ipad, wouldn't make them run at native resolution, but something around 720p, and that would mean our One X is simply incapable of running ipad's optimized games, with less than half the performance of the ipad.

What do you think?

so why not post this in the mega thread mate

Originally Posted by hamdir

so why not post this in the mega thread mate

The mega thread is already pointless, as there is a forum for the One X,
and some subjects there are being neglected or not getting as much attention as they deserve.

http://glbenchmark.com/phonedetails....chmark=glpro21









720p offscreen

Egypt iPad3 140.9
Egypt iPad2 88.8
Egypt Prime 68
Egypt One X 64
Egypt One S 50

Pro iPad3 252.1
Pro iPad2 148.8
Pro Prime 81
Pro One X 82
Pro One S 76

Standard (native resolution)

Egypt iPad3 59.9 @2048x1536
Egypt iPad2 59.6 @1024×768
Egypt Prime 46.8 @1280x800
Egypt One X 51 @1280x720
Egypt One S 57 @540×960

Pro iPad3 60 @2048x1536
Pro iPad2 60 @1024×768
Pro Prime 54 @1280x800
Pro One X 54 @1280x720
Pro One S 60 @540×960

so we are talking between 2x and 3x the T3 and not 4x like Apple claimed

iPad3 CPU same as iPad2

http://www.engadget.com/2012/03/13/n...ost-in-cpu-sp/

Originally Posted by hamdir

720p offscreen

Egypt Ipad3 140.9
Egypt Ipad2 88.8
Egypt Prime 68
Egypt One X 64
Egypt One S 50

Pro Ipad3 252.1
Pro Ipad2 148.8
Pro Prime 81
Pro One X 82
Pro One S 76

so we are talking between 2x and 3x the T3 and not 4x like Apple claimed

Thanks, indeed a little more than 2x on some benchmarks, although never 3x.
Now the big question here is whether the ipad will be upscaling games or rendering in native resolution.

Another question would be, is how does upscaling look (1:4) versus native low resolution (1:1).

These details will really affect my decision whether to get the One X, since I'm not planning to buy an outclassed gpu, as upscaled games will be able to run 2x on the ipad 3, and the One X already incapable of keeping up before being released.

Originally Posted by eeeeeee

Thanks, indeed a little more than 2x on some benchmarks, although never 3x.
Now the big question here is whether the ipad will be upscaling games or rendering in native resolution.

Another question would be, is how does upscaling look (1:4) versus native low resolution (1:1).

These details will really affect my decision whether to get the One X, since I'm not planning to buy an outclassed gpu, as upscaled games will be able to run 2x on the ipad 3, and the One X already incapable of keeping up before being released.

most game developers on twitter said the iPad3 GPU is not enough to feed the massive pixel count, so yes anticipate a lot of upscaling, Anandtech is making the same assumption

you keep forgetting that most Tegrazone T3 enhanced games used the quad cores for graphics....so the T3 standalone GPU will not keep up but the Quads will make up for it

its really not Apple to Apple comparison, the T3 is designed as a complete mobile graphics solution, Shadowgun THD and Glowball demos are real world examples

Originally Posted by hamdir

most game developers on twitter said the GPU will not be enough to feed the massive pixel count, so yes anticipate a lot of upscaling, Anandtech is making the same assumption

you keep forgetting that most Tegrazone T3 enhanced games used the quad cores for graphics....so the T3 standalone GPU will not keep up but the Quads will make up for it

its really not Apple to Apple comparison, the T3 is designed as a complete mobile graphics solution, Shadowgun THD and Glowball demos are real world examples

But to compete with the new ipad one must optimize the game for the T3 in the code level, which is never gonna happen outside of Nvidia's Tegra Zone.

Originally Posted by eeeeeee

But to compete with the new ipad one must optimize the game for the T3 in the code level, which is never gonna happen outside of Nvidia's Tegra Zone.

why? most games are optimised for their platforms, i didnt even think the DHD with Adreno205 can run shadowgun and it did when optimised for it

Unity developers documents reveal they optimize for every main GPU in the market

and regarding Tegrazone! its one of the best reasons to buy a T3, you have a powerhourse like Nvidia pushing devs to optimize for ti

same case with the iPad, devs have to optimize for the tile based GPU believe me keeping all those pixel inside a tile based buffer will be a major headache for iPad3 games

i really have doubts the iPhone5 will carry the 543MP4 if they want to keep parity with the iPad3 they will simply bump the speed iPhone4s CPU from 800 to 1000 and leave the old GPU

---------- Post added at 12:41 PM ---------- Previous post was at 12:39 PM ----------

if you make GPU benchmarks between Xbox 360 and Ps3 the Xbox will mope the floor withe PS3 GPU

but in real world there are many PS3 games the Xbox360 can not even make, while 90% of the time they match

Ps3 has the cores to assist its inferior GPU and Xbox360 has the GPU assisting its inferior CPU, very similar scenario here mate

in Desktop PC development they already moving to unify CPU/GPU cores

Finally

we already don't have a games match between android and apple, so whats your best choice for GPU if you skip T3? non my friend there is non, T3 is the best SOC for graphics right now on Android

Originally Posted by hamdir

why? most games are optimised for their platforms, i didnt even think the DHD with Adreno205 can run shadowgun and it did when optimised for it

Unity developers documents reveal they optimize for every main GPU in the market

and regarding Tegrazone! its one of the best reasons to buy a T3, you have a powerhourse like Nvidia pushing devs to optimize for ti

same case with the iPad, devs have to optimize for the tile based GPU believe me keeping all those pixel inside a tile based buffer will be a major headache for iPad3 games

i really have doubts the iPhone5 will carry the 543MP4 if they want to keep parity with the iPad3 they will simply bump the speed iPhone4s CPU from 800 to 1000 and leave the old GPU

Offloading graphics to cpu cores is very unnatural, and requires hard modifications to your code.
Again I'm not a graphic expert, but it really depends on one's coding style, becuase if you code your game well enough, it will not be hard to port it over to tegra 3, however, if there's no sign of threads or any seperation of processes in your game, you will have to literally re-develope the game for the tegra 3.

Now we all know the fact that developers favor ios over android almost in any case, especially for gaming, we can expect really bad performance in my opinion in less than a year of holding the One X.

By the way the fact that tegra 3 is the best soc out there for android, kind of depresses me.
I wanted to see android smartphone manufactoreres as htc and samsung adopt the powervr solution, since it's sadly much much better than any other mobile gpu in the market.

yes but i am a graphics expert

We don't have a parity in iOS games vs Android, thanks to Tegrazone we have a lot more games

in fact Tegra3 already runs most games a lot better than on iPad2 with much higher resolution

i don't get your point

the competition is T3 vs iPad2 and not iPad3 since the extra cores will simply serve to feed more pixels (even if slightly upscaled the massive pixel count is beyond 4x) the T3 has 1.5 to 2x competition at most

if you have time read the unity development document to get a better idea

you still didn't answer me what is your alternative? buying an iOS device?