HP Pavilion Monitor

$457
21.5-inch (diagonal) LED-backlit display
2.3GHz dual-core Intel Core i5 processor Turbo Boost up to 3.6GHz
1TB 5400-rpm hard drive; 1TB Fusion Drive; or 256GB SSD2

LG LED-Lit Monitor

$557
21.5-inch (diagonal) LED-backlit display
3.0GHz or 3.4GHz quad-core Intel Core i5 or 3.6GHz quad-core Intel Core i7 processor Turbo Boost up to 4.2GHz
1TB 5400-rpm hard drive; 1TB Fusion Drive; or 256GB SSD2

AOC LED-Lit Monitor

$657
21.5-inch (diagonal) LED-backlit display
3.4GHz, 3.5GHz, or 3.8GHz quad-core Intel Core i5 or 4.2GHz quad-core Intel Core i7 processor Turbo Boost up to 4.5GHz
1TB 5400-rpm hard drive; 1TB Fusion Drive; or 256GB SSD2