Does anyone here have a laptop with a GTX series gpu ? Does the gpu throttle heavily when on battery? My gtx660m throttles oddly according to gpu-z, one second it's at 400mhz, the next second at 135mhz, and it causes major stuttering. It's basically unusable. lower midrange mobile gpu's don't seem to have this issue. I would rather have it run stable at 400mhz. I don't see why it can't do that. look at the absurd graph....
It's because when the laptop is not connected to the mains, it's not receiving the power it needs to run a game at maximum performance. This is why your getting stutter and throttling, the laptop is receiving insufficient power to properly run the game. What your experiencing is perfectly normal. Unfortunately this is a problem for laptops, they NEED to be plugged into the mains otherwise forget heavy gaming, it will lag & stutter. Also the battery will last an hour or less when gaming...
but 400mhz is less than half the maximum clock. memory runs at 800mhz when on battery. When plugged in, it runs at 950/2500. I would expect battery to be able to handle 400/800 fine. I just ran Nvidia Inspector, and I was able to lock the pstate at 400mhz. The battery seemed to be able to handle it. The throttling to 135mhz is overdone.
Is this with all games or just one? On battery power, as kanej2007 says, the battery has to power not only the GPU but the CPU, display, system board, peripherals, RAM etc so it can't provide the oomph needed power 3D intensive games. Plugging it into the mains and it's a different story, the necessary power is now available and intense 3D gaming is now not a problem.
i only tested Furmark benchmark. It uses one core and loads the gpu. but others have said battlefield 3 does the same thing- stutters to a crawl
My GTX 260M throttles down from 500/800 to 383/300 on battery. And the CPU doesn't turbo boost, stays on max 1.6 GHz instead of 2.7 GHz. But the GPU can probably be forced to constant performance level via registry - haven't tried with recent drivers, no need.
Hey Guys I have a Dell M6700 with a slice battery and a 770M I want to play borderlands 2 on the go. It throlles to 135MHZ and 400Memory how do I change the Pstate in nvidia inspector to say 500MHZ and 1000MHZ memory? Cheers Josh
Not sure that you can actually get it not to throttle since the battery doesn't actually provide enough power to effectively run 3d clocks.
Like everyone else said, the battery doesn't provide enough power for everything to run at full blast. But I've found that as long as you can keep the CPU from throttling, the GPU + CPU power is enough to play most games. I actually had to install a custom BIOS to allow me to turn off speed step.
Go to power options, and click on high performance mode ( it may be hidden ). And like Kane said you might get an hours gaming.
