Checked performance difference on 540m. 525m is 6% weaker. The only difference is a 70mhz speed difference to the core clock, 144mhz on the shader clock speed and 1.5GB dedicated video RAM. Other than that it uses 96 unified pipelines which is the same as the 525m. The other ones are the 550m which is the same except a 740Mhz clock and 1480Mhz on the shader clock and 1.5GB video RAM. The 555m has a larger memory bus width at 192 and more shader pipelines, a 590Mhz core clock, 1180Mhz shader clock and 1.5GB of video RAM.
I checked the P750, which has a larger battery life and a re newer compared to the L755 series. It also has Optimus technology, which the L755 doesn't appear to have. It has the hardware for it, both 2410M and a 525m but it wasn't encorporated. That being said, the L755-154 still has a 4 hour battery life. Surely it still down clocks when idle?
Oh, P750 also has Harman Kardon speakers, as opposed to the others which have Onkyo.
I'll check out my options further still. Unfortunately the P750 series is far too expensive for me.
I checked the P750, which has a larger battery life and a re newer compared to the L755 series. It also has Optimus technology, which the L755 doesn't appear to have. It has the hardware for it, both 2410M and a 525m but it wasn't encorporated. That being said, the L755-154 still has a 4 hour battery life. Surely it still down clocks when idle?
Oh, P750 also has Harman Kardon speakers, as opposed to the others which have Onkyo.
I'll check out my options further still. Unfortunately the P750 series is far too expensive for me.