Consumer Reports has run some tests on Apple's new iPad using a thermal imaging camera following numerous claims online that the tablet gets uncomfortably hot after heavy usage. The popular review magazine has found that the third-gen iPad does indeed run much hotter than its predecessor, reaching temperatures as high as 116 degrees Fahrenheit while running processor-intensive games.
The hottest temperature of 116 degrees was reached while playing the game Infinity Blade II on the new iPad for 45 minutes while it was propped up by a Smart Cover with 4G LTE turned off and the power supply plugged in. This temperature is about 12 degrees hotter than the iPad 2 under the identical testing conditions. During the hottest, Consumer Reports said that the new iPad felt very warm but wasn't uncomfortable to hold if held for a brief time.
Consumer Reports also discovered that the new iPad's battery would not recharge while the game was running and the power supply was plugged in. It's believed that the new A5X processor may have been drawing too much power during heavy use for the USB charger connection to overcome.