$552.00

Apple 661-5315 - 661-5315 Video Card, ATI Radeon HD, 4850 512MB - 27 inch Core2D...
$98.68

ASUS EAH4850/HTDI/512MD3/A ATI Radeon HD 4850 512MB 256-bit GDDR3 HDCP Dual-Link CrossFireX PCI-Express 2.0 x16 Video Card w/2DVI, HDTV...
$118.68

HIS Radeon HD 4850 512MB GDDR3 PCIe, DVI/HDMI/VGA...
$249.99

Original Graphics Video Card for Apple iMac Core i7 2.8 27-Inch Late 2009 A1412 MC507LL/A MC507 Desktop Computer, AMD ATI Mobility Radeon HD 4850 GDDR3 512MB 109-B91157-00, GPU Upgrade Replacement...
$99.99

Gigabyte Radeon HD 4850 PCIE2.0 512MB GDDR3 Dvi-i Tv Out...
$249.99

Genuine Graphics Video Card GPU Replacement for Apple iMac Late 2009 27 Inch Core i5 2.66 MB953LL/A A1312 All-in-One Desktop PC, AMD ATI Mobility Radeon HD 4850 GDDR3 512MB, MXM VGA Board Repair Parts...
$128.86

ASUS EAH4850 Graphics Card (ATI Radeon HD 4850 Chipset, Directx 10, 2nd Generation 55NM GPU Solution, 512MB)...
$89.86

VisionTek Radeon 5450 512MB DDR3 3M (2x DVI-I, miniDP) - 900530...
$36.00

ATI Radeon HD 3450 256MB DDR2 PCI Express (PCI-E) DMS-59 Low Profile Video Card w/TV-Out & DMS-59 Cable...
$144.99

VisionTek Radeon 7750 2GB GDDR5 SFF Graphics Card, 4k 2 DisplayPort 1.2, PCIe, 7.1 Surround Sound, Included Full-Height Bracket (900942)...