Our Kintrex IRT0421 laser-targeting thermometer lets us measure surface temperature, but we can do even better with an infrared camera, which detects infrared energy and converts it into an electronic signal.
On the previous page, we created each heat map by taking nine samples on the front and back of the tablets. But those samples only represent individual pin points. The Flir i7 lets us visualize the entire device at 140x140 resolution, and with plus or minus two-degree accuracy.
We probably won't be using the i7 much moving forward, since its focus is fixed. However, the images themselves tell the story here. Apple's A5X is responsible for the hotspot observed during gaming sessions. (Link to view full thermal camera image gallery of the iPad 3.)

Look what happens when brightness is increased, below. The whole tablet's temperature (measured at the front and back) jumps by a significant margin. Though it's a worst-case scenario, this situation illustrates that concerns about heat are largely limited to 3D workloads with the screen's brightness cranked up as high as it'll go. On it's own, the Retina display is about as hot as human skin, whereas the iPad 2 is comparatively cool.

- The New iPad Is Heavier, But Features A Dazzling Display
- Wide-Gamut Color Performance
- Driving Higher Resolutions Requires More Power
- Battery Life: What To Expect
- Is There A Problem With Heat? We Profile Power
- Mapping Out iPad 3's Heat: Surface Temperature
- Taking An Infrared Camera To The iPad 3
- 4G LTE Performance: Verizon Versus AT&T
- HDMI Output Disappoints; Camera Quality Impresses
- The New iPad: Making Life Hard For The Competition, Again
+1 to the keyboard thing. But remember that most tablets (all?) don't have full size HDMI so you probably need a dongle 99% of the time anyway.
Really?
100 degrees is damn hot but I think the results are justified.
+1 to the keyboard thing. But remember that most tablets (all?) don't have full size HDMI so you probably need a dongle 99% of the time anyway.
The port isn't all that's needed. There's also a bit of hardware around it for the socket that makes it a tad thicker and a stretch to fit in the chasis of tablets.
Really?
Yeah I thought that comment was bunk too. Typically I use my tablet 1-2 feet away as less that 1 foot away would have the thing shoved up in my face too much and not give me any arm reach to operate the device properly.
As for the display in the iPad3 I went to the apple store and looked at it side by side with the iPad2. The colors look great but the super high pixel density was not as big of a difference as these reviews made it out to be.
The biggest things I noticed when comparing iPad2 and 3 side by side was the increased thickness and weight. Those 2 factors were enough for me to want to choose the iPad2, especially if I could get it a little cheaper than the iPad 3.
I also am curious about who will get the gaming win (more depends on where the devs go):
android tegra3, ipad3, vita, 3ds, or maybe microsoft will pull a rabbit out of their hat with win8.
I'm just saying if we are supposed to be a technology site we should be sure the facts are correct.
If I am going to pay $830 for a limited use tablet with 64GB storage and 4G, then I think I would rather spend that money on a notebook or ultrabook. I can still get a touch screen, I still get good graphics, I get a real keyboard/mouse, can still get a 4G option, and I get real x86 programs, removable storage, better connectivity options (USB3, thunderbolt), and (most importantly) real storage space.
Also, I would prefer win8 over iOS, but iOS is not a deal breaker if they would come out with something that would fit my use.
My fault. Corrected.
Cheers,
Andrew Ku