ATi vs Nvidia 2008

[runawayprisoner]

They could just buy one from their own budgets if they really wanted one. Then he could either sell it as the first PhysX enabled 4800 series card, or keep it, because the 4800 series are nice cards!

Seems fishy from the looks of it. He's even saying that nVidia is supporting this, as if making nVidia looking like the good guy, while making ATI look like the bad guy. What they don't say, though, is that... if AMD gives in to this, then they may have to build their next GPUs based on PhysX specs, and that means... nVidia gets to push ATI around the next round. But if AMD doesn't give in, then they would ultimately look bad. This is not a win-win situation for AMD.

...but seriously, I don't really care, as I am a consumer, and this is a win situation for me. ;p

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[Squall-Leonhart]

I was thinking the same thing, however i did a bit of digging and it looks like regeneration really is on the nvidia developer program now O.o

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[runawayprisoner]

Exactly! nVidia wouldn't want to lose this chance of making ATI build cards to their own specifications! Then it's always nVidia who'll get the upper hands in PhysX performance.

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[Chaos_Blader]

Can anyone provide any Physx benchmarks? Physx was bull before nVidia bought it.

CUDA I can understand, Ive seen it in action, but Physx only performed like 3fps better (with a separate card) in UT3.

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[skoreanime]

I don't think Physx cards are meant to increase FPS, but give you the benefit of those fancy flying shrapnels, enemy bodies blasting into the air and off walls etc...

[runawayprisoner]

Yeah... there was actually quite a cool game for PhysX called CelFactor. That thing was pretty wicked if you had the hardware for it. Good physics in game should be the way to go for next-gen gaming, and not super realistic graphics or anything.

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[fivefeet8]

Originally Posted by runawayprisoner

Seems fishy from the looks of it. He's even saying that nVidia is supporting this, as if making nVidia looking like the good guy, while making ATI look like the bad guy. What they don't say, though, is that... if AMD gives in to this, then they may have to build their next GPUs based on PhysX specs, and that means... nVidia gets to push ATI around the next round. But if AMD doesn't give in, then they would ultimately look bad. This is not a win-win situation for AMD.

Nvidia has already come straight out in various interviews and articles around the web that they are more than happy to support PhysX on any video card. The PhysX api is simply a programming tool and doesn't contain a set specs per hardware because it's basically using ALU's to do math calculations for physics. It's also an open APi which could mean that an IHV can program extensions that better suits their specific hardware.

Originally Posted by skoreanime

I don't think Physx cards are meant to increase FPS, but give you the benefit of those fancy flying shrapnels, enemy bodies blasting into the air and off walls etc...

It increases FPS when comparing the same physics effects on hardware without PhysX. More physics effects will normally bring down performance, but with a physX enabled GPU, it's far less than without it doing the same effects because then it's the CPU computing all the math without the GPU assist.

Originally Posted by Chaos_Blader

Can anyone provide any Physx benchmarks? Physx was bull before nVidia bought it.

CUDA I can understand, Ive seen it in action, but Physx only performed like 3fps better (with a separate card) in UT3.

I posted a link to a site that did just that several posts up. Here are a few more(plus the previous link).

nVidia PhysX Starring the Zotac 9800 GTX+ - Introduction - DriverHeaven.net
PhysX Performance with GeForce
NVIDIA GPU PhysX Pack Preview - HotHardware
A first look at Nvidia's GPU physics - The Tech Report - Page 1
Elite Bastards - GPU physics for the masses - NVIDIA's PhysX Pack 1

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Last edited by fivefeet8; August 9th, 2008 at 08:49.. Reason: Automerged Doublepost

[skoreanime]

Ah. I thought that computers without a PhysX GPU didn't even have the option of enabling PhysX. /scratches head

Man, I really have fallen behind the times

[Phil]

You have certainly have. Maybe I shouldnt tell you that Intel is doing away with the front side bus on some nehalem chips and that they will implement rudimentary gpu characteristics.


BWHAHAHAHAHAH!! LOOK AT MY POST BUS SPEED!!!

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[skoreanime]

Oh, I've already known for over a year Intel was scrapping the FSB with Nehalem I believe I was one of the first to mention it on our holy forums

[fivefeet8]

Originally Posted by skoreanime

Ah. I thought that computers without a PhysX GPU didn't even have the option of enabling PhysX. /scratches head

Some applications don't, but with the recent PhysX software and drivers for Nvidia cards, they have the option of enabling GPU assisted PhysX, add in card PhysX, or CPU only PhysX. The combination also gives you the option of running 1 GPU to assist in PHysX while the other does all graphics processing in multi GPU systems. Even mixxed cards work. Those articles I linked to above does tests with mixxed cards for GPU + GPU(physX) combinations.

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Last edited by fivefeet8; August 9th, 2008 at 09:15..

[runawayprisoner]

Thanks for enlightening. Now... to wait for PhysX on ATI...

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[skoreanime]

Originally Posted by fivefeet8

Some applications don't, but with the recent PhysX software and drivers for Nvidia cards, they have the option of enabling GPU assisted PhysX, add in card PhysX, or CPU only PhysX. The combination also gives you the option of running 1 GPU to assist in PHysX while the other does all graphics processing in multi GPU systems. Even mixxed cards work. Those articles I linked to above does tests with mixxed cards for GPU + GPU(physX) combinations.

Fascinating. I'll have to read through that article at work tomorrow

[godseeker]

Originally Posted by runawayprisoner

Thanks for enlightening. Now... to wait for PhysX on ATI...

PhysX on ATI 4870*2 2GB DDR5 that will be insane ...

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[ViperXtreme]

^let see those 800x2 cores do some PhysX hehe (well not all ofcourse...)

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[Squall-Leonhart]

1GiB GDDR3 and 5 are now available, this means memory modules now come in 128MB a piece and can increase the capacity of 256bit GFX cards to 1GB of memory.

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[guest.r]

Regardless of the flop power, the mainstream games are going to ignore the advanced possibilities unless the whole dev front front includes it in a compatible way. If there is something more complicated then a checkbox or a text field + button the coders are going to think..."does it pay to get paid for something i hate to do since my boss is a 'office user killer shark' "?

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[Yurihyuga]

physx does not increase fps. it is a dedicated area where certain games can take the strain of the GPU so there is no loss of fps during certain actions.

[Squall-Leonhart]

wow, thanks for that small bit of information that nobody knows about.

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[tuanming]

Waiting to see ATi 40nm GPUs R870 Lil Dragon *RawR* (Could be my next GPU upgrade...lol)

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