When gaming on my new XPS 15 (L521X) | I7 3612QM | GT 640M - I noted that the frame rate was dropping significantly after about 1 minute. (note: running on A/C power - not battery)
After loading up EVGA Precision to monitor GPU FPS and CPU Z to monitor CPU - I noted that initially when the game starts up the CPU boosts to 2.9 GHZ, but after 1 minute it throttles to 1.2ghz and stays there.
Troubleshooting steps taken:
Updated NVIDIA drivers to 126.96.36.199 - no change
Downloaded A04 BIOS and installed (was already at A04) - no change
Changed power profile to "High Performance" - no change
I was expecting this laptop to outperform my E6530 but that is not the case with the CPU throttling - if a solution is not forthcoming in the next few days the laptop will be returned
Note: When running the same game on my Dell Lattitude E6530 | I5 | NVS 5200M - the CPU boosts to 3.3ghz and stays at that speed indefinitely.
Here's a thread I found on notebook review forum where another user posted the same issues:
Thanks for posting this in DCF. I know that you have spoken with Dell-Bill B and I have your information.
Laptops Liaison, look for me on Twitter and LinkedIn.Would you like to be a Dell Community Rockstar?
I sent you an e-mail with my order info per my discussion with Dell-Bill B
I'll be dropping off the unit with Bill on 7/10 (good to be in Austin) :)
I am also experiencing this issue with that same model. I'll see if I can contact a dell rep later today.
Well I confirmed with the rep that going from 2.9 GHz to 1.2 GHz while using processor-intensive applications is not normal. Waiting on further information from them...
Just noticed a reply here: