Hi, I'm trying to decided between these two cards. One is an overclocked 3850 and the other is a 3870. The 3870 is $10 more. Which card is better for overclocking? Is the $10 for the 3870 worth it? Look these cards up on newegg (its not letting me post the links):

HIS Hightech H385QX512NP Radeon HD 3850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported IceQ3 TurboX Video Card
Original Price: $199.99
You Save: $30.00
$169.99


GIGABYTE GV-RX387512H Radeon HD 3870 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card
$179.99

Any help is greatly appreciated