List of Apple TVs

There are four iterations of the Apple TV.

Apple TV
This is the very first Apple TV.
 * Colors: Silver/White
 * Battery Specs:
 * Current: 7.2 Amps
 * Power: 48 Wh
 * Voltage: 5 V
 * CPU Specs:
 * Core Design: Intel “Crofton” Pentium M x 1
 * CPU Speed: 1 GHz
 * RAM: 256 MiB 400 MHz DDR2 SDRAM
 * Storage: 40/160
 * Firmware:
 * Initial firmware: Modified build of Mac OS X 10.4 "Tiger"
 * Latest publicly available firmware: Modified build of Mac OS X 10.4 "Tiger" (3.0.2)
 * Latest firmware: Modified build of Mac OS X 10.4 "Tiger" (3.0.2)
 * Internal Name: AppleTV1,1

Apple TV 2G

 * Colors: Black
 * Battery Specs:
 * Current: 1.75 Amps
 * Power: 5.95 Wh
 * Voltage: 3.4 V
 * CPU Specs:
 * Core Design: S5L8930 "A4" x1
 * CPU Speed: 1 GHz
 * RAM: 256 MiB DRAM MB
 * Storage: 8 GB
 * Firmware:
 * Initial firmware: 4.0/4.1 (8M89)
 * Latest publicly available firmware: 6.2.1/7.1.2 (11D258)
 * Latest firmware: 6.2.1/7.1.2 (11D258)
 * Internal Name: AppleTV2,1

Apple TV 3G
A5 Rev B (28 nm) x1)
 * Colors: Black
 * Battery Specs:
 * Current: 1.75 Amps
 * Power: 5.95 Wh
 * Voltage: 3.4 V
 * CPU Specs:
 * Core Design: S5L8942 "A5 Rev A" (32 nm) x 2 (one disabled) (AppleTV3,2 - S5L8947
 * CPU Speed: 1 GHz
 * RAM: 512 MiB DRAM
 * Storage: 8 GB
 * Firmware:
 * Initial firmware: 5.0/5.1 (9B179b), 5.2/6.1 (10B144b)
 * Latest publicly available firmware: ,
 * Latest firmware: ,
 * Internal Name: AppleTV3,1, AppleTV3,1

Apple TV 4G

 * Colors: Black
 * Battery Specs:
 * Current: ? Amps
 * Power: ? Wh
 * Voltage: ? V
 * CPU Specs:
 * Core Design: T7000 "A8"
 * CPU Speed: ?
 * RAM: ?
 * Storage: 32/64 GB
 * Firmware:
 * Initial firmware: ?
 * Latest publicly available firmware: ?
 * Latest firmware: ?
 * Internal Name: AppleTV5,3