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Indepth PhysX review at Hardware Asylum

T

Terra

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Hardware Asylum: On the Verge of Enhanced Physics Acceleration: Ageia PhysX

Besides from being very indedepth page 9, shows that his guy actually knows that is not a GPU he is reviewing, but a PPU:

Testing Ageia’s PPU has frustrated many benchmarkers around the web as they did not see any “improved performance”, when benching with the PPU card installed in their systems. Especially concerning among the enthusiasts in forums were that they did not see any “performance boost” when running 3DMark06. Surprising as it may seem the PPU hardware is not supported by 3DMark06. As stated by Nick Renqvist from Futuremark in this interview, 3DMark06 does not have any “dedicated physics feature tests.” Nor does it “take advantage of physics hardware that might be present in the system.” That is so even if the PhysX physics library is used in the CPU tests (the Red Valley ones). Look for future(mark) benchmark programs to show off the effect of adding a PPU card.
Apart from benchmark programs not utilizing the PPU, I also found that most “Ageia PhysX ready” demos and games didn’t take (full) advantage of the PPU – at least not yet. Examples are Bet on Soldiers: Blood Sport (love that reality show concept!) and Stoked Rider: featuring Tommy Brunner. Both games will be patched to take advantage of the PPU sometime soon though.

As I stated above it is important to get the criteria of evaluation sorted out. I suggested that CPU load, frames per second (FPS), realism and gameplay consequences be selected as criteria. CPU load and FPS are of cause interconnected as when FPS drops due to CPU overload. The reason that I choose to look at them separately is that adding a PPU card is supposed to both offload and reload the CPU. The PPU offloads the CPU by doing the physics computations. And, the PPU reloads it by adding more AI and over-all game management computations for the CPU to handle. The interesting thing being, what the net effect of this off- and reloading of the CPU is.

Adding the PPU card is connected to FPS performance in two ways. One goes through the above mentioned net effect on CPU load. The other goes through increasing the GPU load on the graphics subsystem. That is, as the virtual environments of 3D games become more sophisticated, with tens of thousands of small particles, fluids and large amounts of dynamically interacting physical objects the rendering load of the GPU(s) will increase as compared to the more static non-dynamic environments we know from today’s 3D games. The extra load on the GPU(s) will tend to reduce FPS.

Realism relates to how well the physics of 3D environments reflect “real world” physics. That is, if the physical objects of 3D games “act” and look as you would expect them to do in “real life,” consequently enhancing the level of immersion associated with playing 3D games.
Even if - strictly speaking – gameplay consequences are part of what makes a gaming experience realistic I still think it useful to single out the gameplay consequences by focusing on the so called “collateral damage”-effects and how they affect the way we play 3D games. Physics in games may look realistic without having any gameplay relevance. In my opinion enhancing physics acceleration should bring us toward a new level of interactivity that changes the way we play games.
Click to expand...

This guy got it right! :D
GPU's should be jugded by IQ + FPS
PPU's should be jugded by CPU load+ FPS + realism + gameplay consequences.

Terra - it's the most informative review I have seen so far :)
 
That's what every reviewer must know after doing there homework on this new produkt and educate the people about it.
So putting a PPU in a budged system would n't be wise
 
SuperGee said:
That's what every reviewer must know after doing there homework on this new produkt and educate the people about it.
Click to expand...

Sadly, this not always the case...the "review" at Tom's showed us this...
But we can always hope that reviewers realize that i's not a GPU but a PPU they evluate in the future :)

So putting a PPU in a budged system would n't be wise
Click to expand...

That would depend on how physcis was impleted in a specific games, so making a bombastic statement like that at this time is not wise...only time will tell.
Because so far we don't have enoguh data to say either way.

Terra...
 
Still does not change the fact that there is no reason to currently purchase one.
 
Terra said:
That would depend on how physcis was impleted in a specific games, so making a bombastic statement like that at this time is not wise...only time will tell.
Because so far we don't have enoguh data to say either way.
Click to expand...

This is exactly the POINT and why most people on this forum can't understand how you can be so, how do I say it, !!!!!!ish about a PPU. Lets wait until we see a measurable impact in an actual GAME and not a demo coded for one purpose.
 
R1ckCa1n said:
This is exactly the POINT and why most people on this forum can't understand how you can be so, how do I say it, !!!!!!ish about a PPU. Lets wait until we see a measurable impact in an actual GAME and not a demo coded for one purpose.
Click to expand...

So you want to wait untill CellFactor goes retail? :p

Terra - BTW...Pot, kettle, black...you know what I mean :cool:
 
Terra said:
Eye of the beholder I would say...some of us like to fiddle with new tech...just for the fun of it ;)
But I havn't said to anyone thay they should but it know...just giving out info ;)

Terra - I was also adressing the "I don't get higher FPS'" issue...it's a PPU...not a GPU ;)
Click to expand...

Still no reason to buy it for one demo.

X-fi Fatal1ty soundcard with onboard sound memory anyone? *cough* games where?

(And I own a Fatal1ty card)
 
I buy 2 for Graw and the CF demo.
Sinds I have take my experience with CF I notice
You can mod CF, so now also for modding.

But CF is a heavy game and the reality Builder is heavy to. So I need to Upgrade.
System mem 2GB and a 512MB card.

Yes I'am a early adopter to fidle with new tech.
 
Netrat33 said:
Still no reason to buy it for one demo.

X-fi Fatal1ty soundcard with onboard sound memory anyone? *cough* games where?

(And I own a Fatal1ty card)
Click to expand...

All game buildt on the Doom3 engine:

Doom3
Doom3:ROE
Quake 4
(Quake Wars - Enemy territory)
(Prey)

And BF2 and BF2:SF

There might be more, this was just on the top of my head.
Do your homework, please...

Terra - X-Fi Elite Pro here :p
 
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