It's the RC512 and the zero power sleep to on is under 5 seconds. The model you noted might be 3 seconds.
Samsung also addressed battery LIFE (not to be confused with running time) by allowing a setting to hold the charge at 80% (or close to that) so that the battery will last far past the usual 2 years. Nice thinking.
The aluminum case helps with heat management and under normal use (not gaming) the laptop even with a core i7 is cool to the touch.
can someone please tell me which laptop is better? thanks!
http://www.bestbuy.com/site/Samsung+-+Series+7+Laptop+/+Intel%26%23174%3B+Core%26%23153%3B+i7+Processor+/+15.6%22+Display+/+6GB+Memory+/+750GB+Hard+Drive+-+Silver/3495331.p?id=1218406257887&skuId=3495331&st=samsung series 7&cp=1&lp=1