I'm a fairly computer literate person. System specs:
Lenovo Y510p
Intel i7 4700MQ @2.4GHz
12GB DDR3 RAM at 1600MHz (2GB allocated to Minecraft. HD texture packs crash with just 1GB)
1920x1080 resolution
Windows 8 64-bit
Two Nvidia GT750m GPUs in SLI
Without shaders, I get 80-150fps (usually around 130). HD texture packs and increasing render distance do not effect my frame rate at all.
Using shaders, I get 20-30fps.
In both cases, my 2nd GPU is not under any load. Can I enable SLI and will it help? Thanks.
No. The shaders mods are garbage which is why they run poorly.
But they'll run better with SLI enabled.
@OP Try Sildurs shaders pack or Chocapic13's shader pack. Should run better. I'm not sure if you can force SLI for games or not that don't support it natively.
Minecraft doesn't support SLI so all it'll do is drain battery life (if it even turns on)
I realize this. What I meant was if you can force Minecraft to use SLI somehow, then it would help. You can use a program called RadeonPro force a game to use CrossfireX even if it isn't supported by the drivers. But I'm not sure if there is a similar program for nVidia.
I realize this. What I meant was if you can force Minecraft to use SLI somehow, then it would help. You can use a program called RadeonPro force a game to use CrossfireX even if it isn't supported by the drivers. But I'm not sure if there is a similar program for nVidia.
You can't just "force" a game to use SLI/xfire, that is not how it works.
You can't just "force" a game to use SLI/xfire, that is not how it works.
Do you know how it does work? From my understanding, the GPU drivers will have the GPU's render alternate frames on games that it recognizes. So then theoretically you could force a game to use SLI/Crossfire. I could be wrong. But atleast explain yourself, don't just say "It doesn't work that way", tell me how it does work.
Do you know how it does work? From my understanding, the GPU drivers will have the GPU's render alternate frames on games that it recognizes. So then theoretically you could force a game to use SLI/Crossfire. I could be wrong. But atleast explain yourself, don't just say "It doesn't work that way", tell me how it does work.
You can't just "force" a game to use both GPUs because it will cause issues with the game itself. This is why a game needs to specifically take advantage of the feature to use it.
It is the same thing as "more cores = more power" that is not how it works if a program is only programmed to take advantage of only one core/thread.
I am lazy. If you want more in-depth detail there is google.
You can't just "force" a game to use both GPUs because it will cause issues with the game itself. This is why a game needs to specifically take advantage of the feature to use it.
Alternate Frame Rendering and Split Frame Rendering with either technology requires no Application-side support. Ideally the Pixel Format request would include PDF_SWAP_EXCHANGE so that the Driver implementation knows the backbuffer contents will not be needed by the game after it calls SwapBuffers(). Games will need to be written with SLI and Crossfire in mind to take full advantage of them, since there are some caveats particularly with regard to Video Memory. However you can force SLI using the NVidia Control Panel, and likely CrossFire can be enabled with Catalyst. Normally I'd say that this would be a waste of time for Minecraft, since it's far more CPU bound than it would be GPU bound, but if shaders are being used it might benefit from a dual GPU configuration.
It is the same thing as "more cores = more power" that is not how it works if a program is only programmed to take advantage of only one core/thread.
In this case however, it's not quite the same. GPU stuff can be parallelized easier. The question is usually how much of a boost you will get. And that depends entirely on how they access and use particular methods and video memory and whatnot.
Alternate Frame Rendering and Split Frame Rendering with either technology requires no Application-side support. Ideally the Pixel Format request would include PDF_SWAP_EXCHANGE so that the Driver implementation knows the backbuffer contents will not be needed by the game after it calls SwapBuffers(). Games will need to be written with SLI and Crossfire in mind to take full advantage of them, since there are some caveats particularly with regard to Video Memory. However you can force SLI using the NVidia Control Panel, and likely CrossFire can be enabled with Catalyst. Normally I'd say that this would be a waste of time for Minecraft, since it's far more CPU bound than it would be GPU bound, but if shaders are being used it might benefit from a dual GPU configuration.
You can force straight through the driver? I was under the impression you'd need a wrapper of some sort, or a hacked driver.
In this case however, it's not quite the same. GPU stuff can be parallelized easier. The question is usually how much of a boost you will get. And that depends entirely on how they access and use particular methods and video memory and whatnot.
Wouldn't it be more difficult since you are dealing with the driver? Or does the driver do all of the work with this?
Under "Manage 3D settings", there should be an option called "SLI performance mode". You want to change that to "Force Alternate Frame Rendering 2" instead of "Use Global/Application settings".
The option is missing if the installed Graphics cards are not SLI compatible, the Motherboard doesn't support SLI, or the two cards are not connected with the SLI Bridge.
That's also why I don't have the option.
I used powerGREP to search for SLI in the NVidia driver files, and I found some possibly relevant registry paths:
The option is missing if the installed Graphics cards are not SLI compatible, the Motherboard doesn't support SLI, or the two cards are not connected with the SLI Bridge.
That's also why I don't have the option.
Unfortuantely that is not my scenario. Both are SLI compatible (and the same make/brand, serial numbers are only 6 places from each other), the mobo supports SLI and they are connected via a bridge.
However I do still get the "SLI" thing on the top left of the screen when a game running supports it (just like the "PhysX" label you get up there) and both get activity, meaning games are certianly using it.
Updating the drivers did not give me the options, but outside of not having that option everything else is fine.
I used powerGREP to search for SLI in the NVidia driver files, and I found some possibly relevant registry paths:
Hey, i have Lenovo y510p same specs as yours but nvidia 755m SLI and 8 GB ram.... and i am trying to find a way to force SLi.
Anyways, many people said that we have to use nvidia control panel and add javaw.exe and there is an SLI option which we have to change it it is called "SLI rendering mode" and choosing the option "force alternate frame rendering" they claim that it works
Lenovo Y510p
Intel i7 4700MQ @2.4GHz
12GB DDR3 RAM at 1600MHz (2GB allocated to Minecraft. HD texture packs crash with just 1GB)
1920x1080 resolution
Windows 8 64-bit
Two Nvidia GT750m GPUs in SLI
Without shaders, I get 80-150fps (usually around 130). HD texture packs and increasing render distance do not effect my frame rate at all.
Using shaders, I get 20-30fps.
In both cases, my 2nd GPU is not under any load. Can I enable SLI and will it help? Thanks.
But they'll run better with SLI enabled.
@OP Try Sildurs shaders pack or Chocapic13's shader pack. Should run better. I'm not sure if you can force SLI for games or not that don't support it natively.
Minecraft doesn't support SLI so all it'll do is drain battery life (if it even turns on)
I realize this. What I meant was if you can force Minecraft to use SLI somehow, then it would help. You can use a program called RadeonPro force a game to use CrossfireX even if it isn't supported by the drivers. But I'm not sure if there is a similar program for nVidia.
Do you know how it does work? From my understanding, the GPU drivers will have the GPU's render alternate frames on games that it recognizes. So then theoretically you could force a game to use SLI/Crossfire. I could be wrong. But atleast explain yourself, don't just say "It doesn't work that way", tell me how it does work.
https://en.wikipedia...i/AMD_CrossFire
You can't just "force" a game to use both GPUs because it will cause issues with the game itself. This is why a game needs to specifically take advantage of the feature to use it.
It is the same thing as "more cores = more power" that is not how it works if a program is only programmed to take advantage of only one core/thread.
I am lazy. If you want more in-depth detail there is google.
Alternate Frame Rendering and Split Frame Rendering with either technology requires no Application-side support. Ideally the Pixel Format request would include PDF_SWAP_EXCHANGE so that the Driver implementation knows the backbuffer contents will not be needed by the game after it calls SwapBuffers(). Games will need to be written with SLI and Crossfire in mind to take full advantage of them, since there are some caveats particularly with regard to Video Memory. However you can force SLI using the NVidia Control Panel, and likely CrossFire can be enabled with Catalyst. Normally I'd say that this would be a waste of time for Minecraft, since it's far more CPU bound than it would be GPU bound, but if shaders are being used it might benefit from a dual GPU configuration.
In this case however, it's not quite the same. GPU stuff can be parallelized easier. The question is usually how much of a boost you will get. And that depends entirely on how they access and use particular methods and video memory and whatnot.
Wouldn't it be more difficult since you are dealing with the driver? Or does the driver do all of the work with this?
314.07
2x 560Ti
That's also why I don't have the option.
I used powerGREP to search for SLI in the NVidia driver files, and I found some possibly relevant registry paths:
HKLM\SOFTWARE\NVIDIA Corporation\Global\NVTweak\Defaults" valueName="NvCplSLIConfig"
I wasn't able to force it to show for me though. the Control Panel tool knows about that setting though because it deleted it, though.
However I do still get the "SLI" thing on the top left of the screen when a game running supports it (just like the "PhysX" label you get up there) and both get activity, meaning games are certianly using it.
Updating the drivers did not give me the options, but outside of not having that option everything else is fine.
Hmm.... It shows but the setting is reverted to what it was before and the entry is deleted once I apply and exit the control panel.
Anyways, many people said that we have to use nvidia control panel and add javaw.exe and there is an SLI option which we have to change it it is called "SLI rendering mode" and choosing the option "force alternate frame rendering" they claim that it works