PsyX Games

Lepton87

Platinum Member
Jul 28, 2009
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I'm looking for games that use a dedicated graphics card as PSYx accelerator (or that original PPU but I think it is obsolete at the moment and probably not even supported). Besides that I'd like to start up a discation about what those PsyX features bring to the game that is in terms of game-play and graphics. Sadly as far as I know those effects are only used for visual eye candy and not genuine improvement in the games physics. I'm asking those question because I have a dedicated water cooled Titan used solely as PsyX accelerator but from what I heard I might actually have a chance to use it as an ancillary* rendering cards in some DX 12 games. I doubt there will be more than half a dozen of games utilizing this features but if they turn out to be good games it gives more sens to keeping that Titan as a PSY-X accelerator. Even though kepler is not particularly good at PsyX but the Titan's still a high-end card that can be decently overclocked due to water-cooling I have on it right now. I keep it at stock, it should never be a bottleneck paired up with a single overclocked 980Ti. At least not with the complexity of PsyX in contemporary games.

BTW. Overclocking this card makes it perform in a league of its own, easily making it as big of a jump in performance as going from a 980 to a 980Ti. A 980Ti clocked at 1300MHz/2000MHz performs abour 25% faster than a stock 980Ti. So the difference in performance is about the same as going from 980 to 980ti and easily more than 970 to 980.

perf_oc.gif

On this chart an
overclocked 980Ti is a whooping 31% faster than a stock 980.
980Ti is 29% faster than a stock 980, so that's even less of a difference. NV could release a premium card with cherry picked dies at name it as Titan X Ultra clocked at 1300(boosting to 1500)/2000. Such a card would practically match a 295X2 such things didn't even happen with new generation that had the advantage of a new process node and now NV could in theory match the previous generation dual card in raw power and offer tremendously better gaming experience.

This is what I meant
Slide%208%20-%20DX12%20Asymmetric%20Rendering.png


That is pretty cool. I have a readon 6970 laying around somewhere so adding it would be fun even if it only improved the performance by 5-10%. I hate selling my hardware and I end up with a lot of deprecated hardware :( I know I should sell my parts as soon as I can and that is sometimes sooner then the replacement arrives. The release of the 5870 tanked the value of GTX285 yet there were still people arguing that the NV card is better. Just before that release was the time to sell any 55nm card. Sometimes it is a very wise idea to buy old parts when new parts arrive for example briefly you could buy GTX480 for half the price of GTX580 because there was this stigma around that card and the fact is it was only 5% slower clock for clock and didn't overclock a lot worse. But somehow it is hard for me. I still have Asus Maximus IV Extreme laying around because nobody offered me more money than for a simple mobo so I sold only the CPU. I bought them for the same price and all I could get for the mobo was 1/3 of what I got for the CPU so I decided to keep it. I'm a fan of ASUS premium products especially ROG parts, it's a shame there's no 980TI ROG or Matrix. 7970 Matrix was awesome.
Once again I'm very impressed with what NV has done with 28nm refresh they achieved practically the same results* as they have in the past and that is without the luxury of a new finer process, the only thing helping them was the ability to focus entirely on FP32 performance because they already had the FP64 chip that is GK210 released a bit before GM200. Also the maturity and familirity with the TSMC 28nm helped. My GM200 reaches almost 1500MHz under gaming and my Titan only 1200MHz and that is on water with massive over-voltage. With the same cooling it would reach about 1100MHz so that's quite a gain in the clock-speed alone.
Clarification: The same results as with the release of a new series. Like 580>680. Well, 780Ti>980Ti that's a bigger jump but they sold middle-range chip for high-end prices, I've been telling this from the beggining but people didn't listen that we were being ripped off. The Titans very particularly big rip-offs. They should have never been advertised as gaming cards only as FP64 CUDA cards.
I compared the jumps in performance in different generations.

580>680 --- 34%
Some might say that is the direct replacement and I tentatively agree
**** 580>780 --- 72% but bear in mind we had to wait another year for that to happen

680>780 ---- 27.7%

780>980 --- 32%

780ti>980Ti -- 43%
Actually 980Ti was the biggest jump in performance in recent history as far as dirrect sucessor are concerned. I used BF4 as a proxy for performance it may favor one architecture slighltly over another but it is a good estimate. Obviousely It doesn't include the sudden drop in perfomance of kepler cards in a few of new games like the witcher 3. I had Titan SLI at 1.2GHz watercooled and after burning one card I bought an OC edition 980Ti as a replacement. The 980Ti offers tremendously better performance than those TITANS. I'd go as far as say that OCed 980Ti performs way better in ultra preset than Titans SLI in HIGH preset.
 
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ShintaiDK

Lifer
Apr 22, 2012
20,378
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I dont get the point of dedictated physx card.

Your 6970 doesnt support DX12.

Also multiadapter will give you extra lag.

microsoft-dx12-build15-ue4frame.png
 
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Lepton87

Platinum Member
Jul 28, 2009
2,544
9
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I dont get the point of dedictated physx card.

Your 6970 doesnt support DX12.

Also multiadapter will give you extra lag.

microsoft-dx12-build15-ue4frame.png

I don't know if that pertains for my set-up. The rendering card is 980Ti and that's the card that displays the image. There's no copying frames as in Optimus or your example unless I understand it wrong.

As for the utility of a dedicated psyX

Batman-PxDed-1280.png


old but still shows the point
 
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Deders

Platinum Member
Oct 14, 2012
2,401
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The Arkham games have the best use of PhysX imho, it was pretty good in Cryostasis too, meant you could use additional weapons.

Borderlands 2 was supposedly pretty intensive, but I think that had a lot to do with the draw calls required to create the additional polygons.

The metro games have good implementation, the non remake version of the original has more going on in that dept from what I've seen.

the Assassins creed pirate version has smoke that can really drop the framerate on anything less than a 780, but it's probably the most superfluous use of PhysX I've seen.

I'll post back if I can think of more.
 
Feb 6, 2007
16,432
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A PhysX card is nice in theory. In practice, I can't think of a single game that exists that you can't max PhysX on a 980ti and clear 60 FPS anyway. Assassin's Creed Black Flag, I guess, but the PhysX effects in that game don't actually look very good. I mean, look at the list of games that support hardware accelerated PhysX; what isn't a 980ti maxing even without a dedicated PhysX card? Using a Titan as a PhysX card is silly; you'd see vastly more improvement if you sold it (and the Radeon 6970) and picked up another 980ti for SLI, and that improvement wouldn't be limited to a handful of titles that support PhysX.
 

Lepton87

Platinum Member
Jul 28, 2009
2,544
9
81
A PhysX card is nice in theory. In practice, I can't think of a single game that exists that you can't max PhysX on a 980ti and clear 60 FPS anyway. Assassin's Creed Black Flag, I guess, but the PhysX effects in that game don't actually look very good. I mean, look at the list of games that support hardware accelerated PhysX; what isn't a 980ti maxing even without a dedicated PhysX card? Using a Titan as a PhysX card is silly; you'd see vastly more improvement if you sold it (and the Radeon 6970) and picked up another 980ti for SLI, and that improvement wouldn't be limited to a handful of titles that support PhysX.

It would be hard to sell that Titan with a Waterblock already on it but I may try. Also the card don't have warranty. It's hard to sell such niche cards over here. Especially for decent prices, sadly right now it performs around R290 which costs less than 1/3 more like 1/4 of a 980TI and that's probably how much I'd get for it which makes it not worth the hassle of selling I may make some use of it in the future either as PsyX or asymmetric rendering. so in that case I'd rather keep it as psyX. Maybe I'll get some use out of it with Assymetric rendering I mentioned earlier. It's still a potent card at 1.2GHz it should easily provide more than 25% uplift in the games supporting asymmetric rendering. I took inefficiency of such a technique into equation. Clearly the Titan at 1.2GHz is not 1/4 the speed of Maxwell at 1.47GHz

BTW.

That single 980Ti overclocked matches my previous Titans in SLI at 1.2GHz in the most favorable conditions for the Titans. And that is in raw fps and not smoothness which should easily be better on the single card. Such things didn't even happen with node changes lately. Last time I remember a better uplift was 5870 and 480.
http://www.3dmark.com/fs/5396318

Those Radeons R290s are crazy cheap I could literally buy 4 of them for the price of my single 980Ti. Or 3x290X with aftermarket coolers.
 
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