Hack gets PhysX and Radeon working again

[brinox]

im going to swap in my 9800 gt EE tomorrow after getting my new heatsinks for the 9600GSO's that will be shuffling around in my systems.

i downloaded the 1.02 mod files so we shall just have to wait and see what goes down tomorrow. thanks for the pointer to the 1.02 mod files

[dook43]

I've been running PhysX/ATI 5850 for some time now on a 620W (Corsair HX) + 4ghz i7 + 3 disks. As long as that Seventeam is legit you should be good to go.

[CraptacularOne]

A card running just for PhysX isn't really loaded at all compared to when it's asked to render 3D images. My GTS250 barely goes above idle temps while running 800/2000/2500 during PhysX apps while running the fan on auto which never goes over 30%.

[brinox]

A card running just for PhysX isn't really loaded at all compared to when it's asked to render 3D images. My GTS250 barely goes above idle temps while running 800/2000/2500 during PhysX apps while running the fan on auto which never goes over 30%.

lol if you are referring to my swapping of heatsinks, its because all of the computers in my bedroom are running nearly full-tilt with BOINC stuff.

so in effect, it is most certainly not sitting idle anyway, one of these 9600GSO's never even runs quiet at all, despite being controlled by PWM, and the other 9600GSO's fan bearing is waaaay past its time, and it rattles pretty aggrivatingly.

its all good though, im definitely a sticker for silently running pc's, and given that there are three in my bedroom, its a necessity for my sleep

[CraptacularOne]

lol if you are referring to my swapping of heatsinks, its because all of the computers in my bedroom are running nearly full-tilt with BOINC stuff.

so in effect, it is most certainly not sitting idle anyway, one of these 9600GSO's never even runs quiet at all, despite being controlled by PWM, and the other 9600GSO's fan bearing is waaaay past its time, and it rattles pretty aggrivatingly.

its all good though, im definitely a sticker for silently running pc's, and given that there are three in my bedroom, its a necessity for my sleep

I like silence too, but I'm no stickler for it. I'm a gamer, and most of the time when my PC is on any sounds of the PC are drowned out by the sounds of gun fire, tires screeching or explosions going off....lol.

[Bobsama]

How would an 8800GT-256 compare to a 8800GT-512 if it's only being used for PhysX? I have an old 256 card laying around.......

[CraptacularOne]

How would an 8800GT-256 compare to a 8800GT-512 if it's only being used for PhysX? I have an old 256 card laying around.......

It wouldn't perform any differently than the 512MB model. PhysX only requires 256MB to run. THe specs of the 256MB and 512MB model 8800GT are other wise the same. Toss the 8800GT in there and take it for a spin

[liquor711]

Alright, I have a newbish question. I am very familiar with pc's, but this I have no clue about and have found nothing except this forum in my searches. People talk of running games with 2 cards and one of them is dedicated to physx. how is this accomplished. I am looking at getting a lower end nvidia card for physx to run with my ati card. I guess the part I am really confused about is having two output sources to one input source. split cable? is it that simple? just want to make sure i have an idea how to do this before i make the purchase.

[D749]

Alright, I have a newbish question. I am very familiar with pc's, but this I have no clue about and have found nothing except this forum in my searches. People talk of running games with 2 cards and one of them is dedicated to physx. how is this accomplished. I am looking at getting a lower end nvidia card for physx to run with my ati card. I guess the part I am really confused about is having two output sources to one input source. split cable? is it that simple? just want to make sure i have an idea how to do this before i make the purchase.

If you have an ATI and NV card installed on the same system you can hook up one of the DVI/DSUB ports the NV card to a spare input on your monitor, if you have a spare input on your monitor, or hook it up to a different monitor. I have a monitor that has both a DVI and DSUB input. I hooked up the ATI to the monitor via DVI and the NV to the same monitor via DSUB.

[liquor711]

I dont see how that would work. I have a single input source (monitor). If I connect it with separate cables. They will not produce images on the same input channel. Different and separate output sources. (2 different cards 2 different cables means they are not assisting each other in producing an image at the same time). If I hook up one card with DVI and the other HDMI. The DVI shows when monitor is set on "digital" input and HDMI shows up when on "HDMI" input. Such as Video 1, Video 2 on tv's. Hence, why it would seem that I would need a split cable to do this. My monitor has DVI, HDMI and VGA inputs.

[viccan]

I dont see how that would work. I have a single input source (monitor). If I connect it with separate cables. They will not produce images on the same input channel. Different and separate output sources. (2 different cards 2 different cables means they are not assisting each other in producing an image at the same time). If I hook up one card with DVI and the other HDMI. The DVI shows when monitor is set on "digital" input and HDMI shows up when on "HDMI" input. Such as Video 1, Video 2 on tv's. Hence, why it would seem that I would need a split cable to do this. My monitor has DVI, HDMI and VGA inputs.

the physX does not need to be attached to the monitor it's handles by the cpu / system os... So 1 cable going from the ATI card for Rendering and the PhysX is delivered much like the Ageia cards processing (there was no output on the cards)

[viccan]

Just an update of some noticeable performance increases via the combination of the 4870x2 and the 285 gtx cards...

3d mark vantage with just the 4870x2 = score: 16822
Same test w/ 285gtx installed = score: 19524

Thats nearly a 3000 point increase just by having physX ?
Just thought I'd post and see if others have received similar results...

Happy benching

[askimo]

What would be the ideal nVidia card to be paired with one 4870x2?

[RaZz!]

A card running just for PhysX isn't really loaded at all compared to when it's asked to render 3D images. My GTS250 barely goes above idle temps while running 800/2000/2500 during PhysX apps while running the fan on auto which never goes over 30%.

if that's the case, why do the fps drop that much when activating physx with a dedicated card just for physx? doesn't look that efficient to me...

[gamervivek]

if that's the case, why do the fps drop that much when activating physx with a dedicated card just for physx? doesn't look that efficient to me...

because CUDA kernels and directx shaders cannot be run simultaneously on the shader multiprocessors and the context switch isn't that fast in current nvidia gpu.

What would be the ideal nVidia card to be paired with one 4870x2?

how many oranges can you eat with two apples?

[purecain]

so would the people who have bought nvidia cards for physx say it was worth the investment...?
were you impressed?

if so i might buy a Palit GeForce GTS 250 Green 1024MB.... just spotted one for £86

[ElSel10]

because CUDA kernels and directx shaders cannot be run simultaneously on the shader multiprocessors and the context switch isn't that fast in current nvidia gpu.

That is supposed to be one of the big things nvidia has addressed with Fermi.

[viccan]

What would be the ideal nVidia card to be paired with one 4870x2?

Well 1st I got an 8800 gts and I got a lotta lag and stuttering then a 9800 gt same results..... then i got the 285 gtx and it ran flawlessly with no drops in frames at all over the 4870x2 stand alone.. The 285 was a massive improvement..

so would the people who have bought nvidia cards for physx say it was worth the investment...?
were you impressed?

For the $200 I pd for the 285gtx , I'd say it was worth the investment (mostly knowing I could sell the card in a second and turn a buck but for $300 I wouldnt have done it just not that much of an improvement ( i got it for 1 game ..batman..)

if so i might buy a Palit GeForce GTS 250 Green 1024MB.... just spotted one for £86

do it.. Think youll get simular results to the 285 anything less and your throwin money out the window

[purecain]

i see, i'll need the best card i can get my hands on... hmm i might wait for a fermi based product if thats the case... or pick up a 285 when there price drops...

thanks for the advice viccan...

[viccan]

i see, i'll need the best card i can get my hands on... hmm i might wait for a fermi based product if thats the case... or pick up a 285 when there price drops...

thanks for the advice viccan...

No prob ..
The 285's a great card but it should not be demanding the $300+ its currently asking when you can pick up a 4890 for under $200...
But obviously hans the physX.. Question is what fermi card will compete with the 285, their flagship GPU at this point... and what will the cost of something similar/ comparable or better retail for??
The drop is coming.. Fermi looms

[CraptacularOne]

I'm playing all PhysX games with my GTS250 just fine. No lag, no slow downs at all. In fact I had an 8800GS before this card and it too ran all my PhysX games just fine. I actually regret buying the GTS250 because my 8800GS was doing the job just as well. You don't need a GTX285 just for PhysX man. That's way overkill for that.

[D749]

Well 1st I got an 8800 gts and I got a lotta lag and stuttering then a 9800 gt same results.....

Using a 9800GTEE with a 4870X2 at 1920x1200 and it's smooth sailing gaming wise.

[viccan]

My 8800 gts would play Batman AA but as soon as I cranked up my settings to 2560x1600 w// full aa and af maxed all the physx effects seemed laggy, I never tried it with any other game like I said only used it for batman so..... But there was a huge improvement going from the 8800 and 9800 to the 285...... there was no more stuttering...

[SamHughe]

I'm playing all PhysX games with my GTS250 just fine. No lag, no slow downs at all. In fact I had an 8800GS before this card and it too ran all my PhysX games just fine. I actually regret buying the GTS250 because my 8800GS was doing the job just as well. You don't need a GTX285 just for PhysX man. That's way overkill for that.

In fact a recent review in this thread confirms what you are saying.
Having a separate gtx280 made no difference in framerates in PhysX enabled games.

[CraptacularOne]

That only confirms my findings. PhysX calculations alone just do not require a huge amount of GPU power to be processed efficiently. In my own tests between a 8800GS and my GTS250 used as a dedicated PhysX card the difference 1 - 2 fps at most in games that use PhysX. The most significant thing the GTS250 did over the 8800GS was boost my Vantage score by 500 points.