Compaq 320, 321, 420, 421, 620 and 621 Notebook PC and HP 420 and 620 Notebook PC

Category Description UMA
graphics,
GL40 chipset
UMA
graphics,
GM45 chipset
Discrete
graphics,
PM45
chipset
T5870, 2.00-GHz, 800-MHz FSB, 2-MB
cache
√√
P7570, 2.26-GHz, 1066-MHz FSB, 3-MB
cache
√√
P7370, 2.00-GHz, 1066-MHz FSB, 3-MB
cache
√√
T6670, 2.20-GHz, 800-MHz FSB, 2-MB
cache
√√
T6570, 2.10-GHz, 800-MHz FSB, 2-MB
cache
√√
Chipsets Intel GL40 with 667-MH FSB √
Intel GM45 with up to 1066-MHz FSB √
Intel PM45 with up to 1066-MHz FSB √
ICH-9M Southbridge √√ √
Graphics Intel GMA 4500M Universal Memory
Architecture (UMA) graphics subsystem
integrated with shared video memory
(dynamically allocated)
√
Intel GMA 4500MHD Universal Memory
Architecture (UMA) graphics subsystem
integrated with shared video memory
(dynamically allocated)
√
ATI Mobility Radeon HD 530v with 512-MB
memory
√
ATI Mobility Radeon HD 5470v with 512-MB
memory
√
Panels All display assemblies support privacy filter √√ √
33.8-cm (13.3-in) HD LED backlight panel:
●
1366×768 AntiGlare
●
1366×768 AntiGlare for webcam
●
1366×768 BrightView
●
1366×768 BrightView for Webcam
√√ √
2 Chapter 1 Product description