AnandTech did some digging around and found some interesting things regarding the new Apple TV (model A1469). They found that the new Apple TV will use the same WLAN+Bluetooth antenna/chip combo that the iPhone 5 uses as well as an A5X processor rather than the A5.
“Inside however from what we can glean from the FCC documents there’s no longer a two antenna solution for the BCM4330 WiFi+BT combo, but rather a single antenna solution with different gain and utilizing a BCM4334 combo instead…
…Instead of the A5R2 SoC (S5L8942) inside the Apple TV 3,1, this new device contains an A5X SoC (S5L8947) as shown in the screenshots I’ve taken of the Restore.plist file, though there are numerous others. It’s entirely possible that Apple is again using different bins of the A5X, it’s not possible to tell whether CPU or GPU cores are fused off at this point from my digging through the IPSW.”