665079-001 - HP Z1 Nvidia Quadro 4000M MXM 2GB GDDR5 SDRAM 256-Bit Mobile Video Graphic Card
Amazon.com: Original 2GB Graphics Video Card Replacement, for HP EliteBook 8770W 8760W 8740W Mobile Workstation Laptop, NVIDIA Quadro 4000M Q4000M GDDR5 N12E-Q3-A1, MXM 3.0B VGA Board Repair Parts : Electronics
NVIDIA Quadro 4000M | Graphic card Benchmarks | PC Builds
677910-001 - HP Nvidia Quadro 4000M PCI-Express x16 2GB GDDR5 256-Bit Video Graphics Card