2nd card still needed with 480 for Physx ? - Page 2

turdhat · 04-15-10, 09:00 PM

Very here is what I found.

I only used Fluid Mark, Batman and the rocketsled demo because I dont have time for much else.

No numbers just observations. Sorry.

Batman for me has a slower minimum FPS that with my 280/8800gt combo. Dont know why and not really worried. I think it is a driver issue because Fluidmark runs twice as fast with the 480 doing all the work. Switching to the 8800gt cuts the Fluidmark score in half.

Rocketsled demo ran about the same but has some stutters. I will try Cryostasis when I have more time.

CaptNKILL · 04-15-10, 09:02 PM

There is a patch for Batman for use with the 480\470.

http://www.nzone.com/object/nzone_ba...downloads.html

newparad1gm · 04-16-10, 12:08 AM

I'm glad that currently it seems that the 480 isn't really benefiting from a PhysX GPU offload, as I'm not really sure that my 1050W could handle both my GTX 480s and a 9600 GT as well.

jlippo · 04-16-10, 12:21 AM

One of the reason for 480 to do so good in comparison is better state change handling between graphics and gpgpu.
280 most likely twidled it's thumbs for a while every time this happened, so physics had quite big impact in performance.

brunner · 04-16-10, 12:56 AM

Quote:

Originally Posted by jlippo

One of the reason for 480 to do so good in comparison is better state change handling between graphics and gpgpu.
280 most likely twidled it's thumbs for a while every time this happened, so physics had quite big impact in performance.

How are you guys drawing this conclusion? I'm getting much better results with a single 5870 + a 9800GT than the guy with the 480 +240.

Max @ 1920x1200, Physx-Max, 4XAA

Keep in mind 4X AA has much bigger impact on performance for ATI cards in this game.

I think the 240 is just so slow at Physx that it doesn't make much of a difference for the 480 GTX.

brunner · 04-16-10, 01:16 AM

Crossfire results, in case anyone is interested. Scaling is not too impressive in this game but it can be seen that Physx isn't the bottleneck in this game.

Bah! · 04-16-10, 02:57 AM

Quote:

Originally Posted by CaptNKILL

There is a patch for Batman for use with the 480\470.

http://www.nzone.com/object/nzone_ba...downloads.html

Maybe that is why this guys Batman numbers with the 240 are so bad?

turdhat · 04-16-10, 08:04 AM

Quote:

Originally Posted by Bah!

Maybe that is why this guys Batman numbers with the 240 are so bad?

No, I patched it. Minimum fps is lower. Used to be 60 fps 98% of the time with all maxed, 4xaa and physx on high at 1080p with my old combo of 280/8800gt. I think the drivers need to mature. Someone posted Dirt 2 stuff but Dirt 2 is not a physx game.

edit: 240 ? Oh thats not me. Still my batman number went south a bit.

brunner · 04-16-10, 10:30 AM

Turns out that I was right. Off-loading to a 240 for Physx doesn't do much for a 480 because the 240 is just too slow.

Otoh, a 275 + 8800 GT makes the 275 faster than a 480 by itself. Without the 8800 for Physx, the 275 is significantly slower than a 480, as expected. So the results are pretty much in line with what I expected, which is that even a 480 can benefit substantially from offloading Physx to another card.

http://www.overclock.net/nvidia/7116...ml#post9058698

jlippo · 04-16-10, 12:57 PM

Quote:

Originally Posted by brunner

How are you guys drawing this conclusion? I'm getting much better results with a single 5870 + a 9800GT than the guy with the 480 +240.

I'm pretty sure that the state change doesn't happen when using one card just for a physx.

Also things like AA and resolution shouldn't affect that much either.

04-15-10, 09:00 PM	#13
turdhat Registered User Join Date: Jul 2005 Posts: 379	Re: 2nd card still needed with 480 for Physx ? Very here is what I found. I only used Fluid Mark, Batman and the rocketsled demo because I dont have time for much else. No numbers just observations. Sorry. Batman for me has a slower minimum FPS that with my 280/8800gt combo. Dont know why and not really worried. I think it is a driver issue because Fluidmark runs twice as fast with the 480 doing all the work. Switching to the 8800gt cuts the Fluidmark score in half. Rocketsled demo ran about the same but has some stutters. I will try Cryostasis when I have more time. __________________ MSI P67GD55 Intel i7 2600k @ 4.8ghz 1.35v, 1.40v full load Cooler Master Hyper 212 Gigabyte 580 @945/2232 4 Gigs Ripjaw @ 1600 Antec (a good one) 650w A Partridge in a pear tree.

04-15-10, 09:02 PM	#14
CaptNKILL CUBE Join Date: Jan 2003 Location: PA, USA Posts: 18,844	Re: 2nd card still needed with 480 for Physx ? There is a patch for Batman for use with the 480\470. http://www.nzone.com/object/nzone_ba...downloads.html __________________ ---- Primary Rig ---- CoolerMaster 690 II Advance - Gigabyte GA-EP45-UD3P - Intel Core 2 Quad Q9550 @ 4.0Ghz + Thermalright Ultra 120 Extreme 6GB DDR2 @ 942Mhz 5-5-5-20 1.9v (2x1Gb Wintec AMPX PC2-8500 & 2x2Gb G.Skill PC2-6400) - EVGA Geforce GTX 470 @ 750/1500/1850 (1.050v) Sparkle Geforce GTS 250 1Gb Low-Profile (Physx) - Crucial RealSSD C300 64Gb SSD - Seagate 7200.12 500Gb SATA - Seagate 7200.10 320Gb SATA ASUS VW266H 25.5" LCD - OCZ GameXStream 700W PSU - ASUS Xonar DX - Logitech Z-5500 5.1 Surround - Windows 7 Professional x64 ---- HTPC ---- Asus M3A78-EM 780G - AMD Athlon X2 5050e 45W @ 2.6Ghz - 2x2GB Kingston PC2-6400 DDR2 - Sparkle 350W PSU Seagate 7200.10 320Gb SATA - Seagate 7200.10 250Gb SATA - Athenatech A100BB.350 MicroATX Desktop - Creative X-Fi XtremeMusic

04-16-10, 12:08 AM	#15
newparad1gm Registered User Join Date: Mar 2007 Posts: 690	Re: 2nd card still needed with 480 for Physx ? I'm glad that currently it seems that the 480 isn't really benefiting from a PhysX GPU offload, as I'm not really sure that my 1050W could handle both my GTX 480s and a 9600 GT as well. __________________ WAR MACHINE: Intel Core i7 3930K \| Asus X79 Sabertooth \| 4x4 GB G.Skill RipJaw PC3-12800 \| 2x EVGA NVIDIA GTX TITAN Signature 6GB SLI \| OCZ Vertex 3 240GB SSD \| 2x500 GB Seagate Barracuda RAID 0 \| Seagate FreeAgent 500GB External \| LG BD-ROM \| Cyber Acoustics CA3001WB 2.1 Speakers \| ABS SL 1050W PSU \| 3x Acer GD235HZ 23.6in 120Hz \| Silverstone Fortress FT02 \| Windows 8 Pro x64 \| NVIDIA 3DVision SURROUND CRIMSON DYNAMO: Intel Core i7 2600K \| Gigabyte Z68X-UD3H \| 2x4 GB G.Skill Ripjaw PC3-12800 \| XFX AMD HD7970 3GB \| Intel X-25M G2 160GB SSD \| 2x250GB RAID 0 \| Samsung BD-ROM \| Corsair TX 850W PSU \| Toshiba 42" REGZA 1080p HDTV \| Antec 900 ATX \| Windows 8 Pro x64 Sailor Jupiter (HTPC): Intel Pentium Dual-Core E5200 \| ZOTAC Geforce 9300 \| 2x2 GB OCZ Fatal1ty PC2-8500 \| WD 1TB \| Hitachi 2TB External \| MediaSonic HFR2-SU3S2 6x3TB Seagate Barracuda RAID 1+0 \| LG Blu-Ray/HD DVD-ROM \| FSP 150W PSU \| Toshiba 42" REGZA 1080p HDTV \| Foxconn RS233 mini-ITX \| Windows 7 Pro x86

04-16-10, 12:21 AM	#16
jlippo Registered User Join Date: Mar 2006 Posts: 532	Re: 2nd card still needed with 480 for Physx ? One of the reason for 480 to do so good in comparison is better state change handling between graphics and gpgpu. 280 most likely twidled it's thumbs for a while every time this happened, so physics had quite big impact in performance.

04-16-10, 01:16 AM	#18
brunner Registered User Join Date: Jan 2008 Posts: 101	Re: 2nd card still needed with 480 for Physx ? Crossfire results, in case anyone is interested. Scaling is not too impressive in this game but it can be seen that Physx isn't the bottleneck in this game.

04-16-10, 10:30 AM	#21
brunner Registered User Join Date: Jan 2008 Posts: 101	Re: 2nd card still needed with 480 for Physx ? Turns out that I was right. Off-loading to a 240 for Physx doesn't do much for a 480 because the 240 is just too slow. Otoh, a 275 + 8800 GT makes the 275 faster than a 480 by itself. Without the 8800 for Physx, the 275 is significantly slower than a 480, as expected. So the results are pretty much in line with what I expected, which is that even a 480 can benefit substantially from offloading Physx to another card. http://www.overclock.net/nvidia/7116...ml#post9058698