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Forums - Gaming - How powerfull is the Wii U? Not that it matters.

 

Compared to the PS360, how powerful do you consider the Wii U?

Crazy powerfull, it will ... 23 4.91%
 
Super powerful, like 4 to 6 times PS360. 23 4.91%
 
Far more powerful, about 2 to 4 times PS360. 53 11.32%
 
Pretty powerful, around 2 times PS360. 113 24.15%
 
Marginally more powerful,... 123 26.28%
 
About the same as the PS360. 38 8.12%
 
A little less powerful, b... 40 8.55%
 
Far less powerfull than P... 13 2.78%
 
I will not dignify this q... 28 5.98%
 
I confused 13 2.78%
 
Total:467

HappySqurriel said:

I remember seeing a demo of PhysX running entirely on the GPU (with the Geforce 8800 IIRC) that took up (something like) 20% of the GPU and was able to do far more than was possible with the CPU on that PC. Of course that would reduce what can be done on the GPU but, being that the GPU's AMD makes that are 40nm, have 480 stream processors, and are based on the TURKS core (the rumours about the Wii U GPU) are about 2.5 to 4 times the power of the XBox 360 GPU it should be able to run physics, display graphics to both screens, and probably have some moderate graphical enhancements over the XBox 360.

There are a lot of articles with comparison about that subject... physics in GPU or CPU? You know if you translate a PhysX code to run on CPU using the SSE intruction the perfomance is near the code running in GPU? NVidia just hide this and put the code on CPU to run over x87 that is about 2x less performance than SSE... so with that nVidia can show the PhysX on GPU is way better.

That a good article to read: http://www.realworldtech.com/physx87/

The article is dated (2010) the PhysX on GPU is better today but the CPU is better too... how is better for physics? I don't know and there are cons and pros in both cases.

Another issue with nVidia PhysX is when the GPU can't do the work it uses the CPU... so the physics not run exclusive in the GPU, the code uses the CPU at least 20% of the CPU is used to help the physics in GPU.

Anyway the best phisics API in the market is the Havok yet... they tried to create the Havok FX to run on GPU but the project is cancelled for unknown reason.



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ethomaz said:

Anyway the best phisics API in the market is the Havok yet... they tried to create the Havok FX to run on GPU but the project is cancelled for unknown reason.

Well, maybe this - not really the same thing, but I liked Charlie's thoughts on the matter - though it's totally different topic (why he thinks Xeon Phi will destroy GPGPU market):

"The talent pools that can write decent GPGPU code is both small and shallow, plus the people that can do it well are few and far between. Worse yet, they are expensive, very very expensive, and they know it. The normal GPGPU coding process involves hiring people for way more than you want to spend, then paying them copious amounts to climb a steep and always changing learning curve. The end result usually ends up with mediocre code that more often than not misses the vendor’s promises by an order of magnitude. More often than not, the projects don’t come close to their goals if they don’t outright fail. This is why the software stack is of deadly importance. If a top GPGPU coder makes $150K or so, lets just round up to $200K with benefits, toys, and incentives, that is a lot of money. To develop a code base with a team of ten coders over a year will cost lots and lots of money, usually dwarfing the cost of the hardware. The safe route is to use vanilla x86 servers, coders that are familiar with them, and proven tools to do the job."

http://semiaccurate.com/2012/11/13/what-will-intel-xeon-phi-do-to-the-gpgpu-market/

Honestly, I would love to see Intel coming back with another Larrabee in high end GPU market - than, it would be quite possible to take things like "we'll run that on GPU" with ease.



More about the Wii U's CPU...

- "we suspect a cross between the 750CL and the 750FX but it's unclear. The SMP is new anyway."
- "no VMX, Just paired singles, like the Broadway. It's a 750 (perhaps close to 750FX?) with SMP, no more, no less."

Well the SMP is new because there is no dual or tri-core version of the 750 before... of course the IBM implemented that SMP just for the Wii U... and the core is like the Broadway.



ethomaz said:

HappySqurriel said:

...

nVidia PhysX

AMD doesn't have an equivalent and will not license PhysX so not really worth discussing. Nintendo or major third party would have to redo the physics work themselves and since nothing's announced that would take a while.

Anyway the best phisics API in the market is the Havok yet... they tried to create the Havok FX to run on GPU but the project is cancelled for unknown reason.

Because Intel bought it and they want you to run it on their CPUs or Xeon Phi.





Soleron said:
nVidia PhysX

AMD doesn't have an equivalent and will not license PhysX so not really worth discussing.

Anyway the best phisics API in the market is the Havok yet... they tried to create the Havok FX to run on GPU but the project is cancelled for unknown reason.

Because Intel bought it and they want you to run it on their CPUs or Xeon Phi.

I give just a example... there is a API for physics in AMD GPU but it's too used or knewn like PhysX... that's put the things worst to Nintendo use GPGPU because it's expensive and there is no knowledge on the market (remeber Cell talk now).

I forgot Intel bought the Havok... makes sense now.

Anyway if you is not to use the GPGPU for phisics for what will you use??? I want to see what Nintendo is planning but I don't expect the MIRACLE the guys here expecting from GPGPU.



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ethomaz said:
...

Anyway if you is not to use the GPGPU for phisics for what will you use??? I want to see what Nintendo is planning but I don't expect the MIRACLE the guys here expecting from GPGPU.

I think it'll be a miracle if any Wii U game uses GPGPU at all.

I'd love to see them prove that wrong.



ethomaz said:
snowdog said:
On paper it's around 3 times more powerful than the 360 - 3MB CPU cache compared to 1MB CPU cache, a modern architecture for the CPU, 4 times as much RAM, slightly more than 3 times more eDRAM on the GPU (32MB compared to 10MB) which also has the advantage of being on-die, a GPU that has a DX11 equivalent feature set rather than the DX9 feature set that Xenos has.

In real-world performance it should be around 4 times more powerful given that the CPU doesn't have to deal with sound and IO thanks to having dedicated silicon to do the job as well as the CPU having Out-Of-Order Execution, which means less wasted clock cycles and more effeciency.

We'll probably see the PS4 and 720 being 2-3x more powerful than the U, meaning we'll have the 8th gen being similar to the 6th gen with all 3 consoles being in the same sort of ballpark in terms of power.

In the paper the Wii U is not 3 times better... what we have in the paper.

CPU (Espresso x Xenon): You can say the Expresso have a better IPC than Xenon... that's true but the Xenon have almost three time the speed of the Expresso and can run 2 threads per core... yeap the Xenon takes that easily.

Xenon won by a good margin.

Memory: Wii U have more memory but it's ways slow... sorry but it's harder to say what is better... for GPU it's better to have a faster memory than a lot of memory... I think both have the pros and cons... and Wii U have just 2x the memory of 360... not 4x like everyone here things (just 1GB is for games).

Tie.

GPU (Espresso x Xenos): The Wii U takes the leap here... the GPU is better and more advanced but it's a high-end GPU... it's a mid to low-end GPU (PC comparision). The clock is almost the same... so what will define how much the GPU is better is the other specs like SPs, ROPs, TMUs, etc... so what I read until now (and the size comparision) the GPU is at max 2x better than the 360's CPU.

Espresso won by a good margin (2x)

CONCLUSION

In the paper the Wii hardware is not even 2x better than the 360 hardware... it have better and worst components... overall I believe the Wii U is 1.5x better than X360 but just for you not says I'm biased...

Wii U is 1.7-1.8x better than X360 in the paper.

3x or over that is just delusional.

PS. The Wii's CPU is not modern... it's a 10 years old (or more) architecture... the same architecture used in X360's CPU.

The funny thing is that the Broadway, with one core without multithreading and clocked at 729MHz, beats the Xenon at general processing thanks to the Wii having dedicated silicon to deal with sound and IO. The only thing that Xenon has over the Broadway and the Expresso is being great at floating point operations...but that's what the GPU is for. The DSP (Digital Signal Processor) alone makes a huge difference. Developers have to have one thread entirely dedicated to sound, and games with extensive use of sound such as racers for example often have two threads out of six, a third of the Xenon's processing power, dedicated to sound. The Wii U also has a dual-core ARM co-processor but we don't know what sort of work that's doing yet. And you're also not taking into account that Expresso has 3 times more cache than Xenon, which is quite a big deal.

As for the memory, Nintendo have sacrificed high bandwidth for low latency, despite the difference in bus size the U's memory has a lower latency compared to the previous gen consoles. And it is 4 times the amount of memory, not all of the 360's 512MB is used for games either, you can't move the goalposts. The 360 has a total of 512MB and the U has a total of 2GB.

Just to finish, here's what Shin’en’s Manfred Linzner had to say about the hardware:

Wii U Hardware/Tech
- Hardware avoids “typical bottlenecks”, such as RAM latency.
- GPU “quite open”.
- Hardware has good optimisation potential, and components well balanced.
- Have had no problems with the CPU/GPU combination. Feels they’re a “good match”.
- GamePad streaming and camera capture do not put a burden on the CPU/GPU.
- Nano Assault Neo using a few tricks that are not possible on current generation hardware. States the modern Wii U GPU is capable of effects that can make Wii U games look better than any game on current generation hardware.
- Audio DPS used for 3D audio and lowpass filtering.
- Excited to see what developers do with the hardware over the years.

Source

What everyone seems to be forgetting is that Nintendo always release balanced hardware. They're not going to bung in a GPU with plenty of grunt with a CPU and RAM that will give bottlenecking issues. There's a lot more going on under the hood that we don't have a clue about.



I would generously put the figure at 1.5* though I suspect that the Wii U may even be slower overall than the Xbox 360/PS3. Everything we have found out about the Wii U has been a downward revision on expectations.

PowerPC A2? No just 3 very old barely out of order CPU cores.

1.6Ghz? No 1.25Ghz.

1GB of RAM? Yes but 12GB/S bandwidth.

GPGPU? If the Cell processor gave developers fits... then trying to run critical high performance code on the GPU would probably make them slit their wrists. If the rumours hold about the GPU being an RV7xx derivative this is even more so.

The system only consumes 33W at the wall. Physics dictates that the system is slow.



Tease.

the WiiU is not a powerhouse, but if used properly, it should easily bring us grafix that arent possible in current gen, for a reasonable price, with the enhanced gaming experience the pad brings



ethomaz said:

Vertigo-X said:

Is there a link to Nintendo officially announcing Wii U's CPU as being an up-clocked+up-cored Wii CPU?

Core per core comparison is easy because It's PowerPC 750 based (same than Broadway and Gekko) with larger and faster cache running at 1.25Ghz... just it.

Of course there are three cores this time.

...

 

In other words there's no link? Where are you guys getting this "insider" info? o_0



The BuShA owns all!