HP 255 G8 Laptop 39.6 cm (15.6") AMD Ryzen™ 5 5500U 8 GB DDR4 SDRAM 256 GB SSD Wi Fi 6 Windows 11 Home Silver Blue Trace 3 W Energy efficiency scale 3 W Energy efficiency scale A to G Energy efficiency class (SDR) F Energy consumption (SDR) per 1000 hours 27 kWh Operational conditions Non operating altitude 0 12192 m Operating temperature (T T) 0 40 °C Storage temperature (T T) 20 60 °C Operating relative humidity (H H) 20 80% Operating altitude 0 3658 m Packaging content Stand included Yes Manual Yes Cables included DisplayPort horizontal 170° Maximum refresh rate 60 Hz Dynamic contrast ratio marketing name SmartContrast Contrast ratio (dynamic) 50000000:1 Contrast ratio (typical) 1000:1 Aspect ratio 16:9 Supported video modes 1080p Supported graphics resolutions 1920 x 1080 (HD 1080) Screen shape Flat Anti glare screen Yes Display surface Matt Response time 1 ms Display brightness (typical) 250 cd m² Backlight type W LED Panel type TN HD type Full HD Touchscreen No Display technology LED Native aspect ratio 16:9 Display resolution 1920 x 1080 pixels Display diagonal 54 SDXC Card reader integrated Yes Optical drive type No SSD interface PCI Express NVMe Yes SSD capacity 256 GB Number of SSDs installed 1 Total SSDs capacity 256 GB Storage media SSD Total storage capacity 256 GB Graphics On board graphics card model AMD Radeon Graphics On board graphics card family AMD Radeon Graphics On board GPU manufacturer AMD Discrete graphics card model Not available Discrete graphics card No On board graphics card Yes Audio Number of microphones 1 Built in microphone Yes Number of built in speakers 2 Built in speaker(s) Yes Camera Front camera HD type HD Front camera Yes Network Bluetooth version 5 0 HP Smart AC Adapter Yes HP Support Assistant Yes HP JumpStart Yes Battery Battery weight 190 g Battery capacity 41 Wh Number of battery cells 3 Battery technology Lithium Ion (Li Ion) Power AC adapter input voltage 100 240 V AC adapter frequency 50 60 Hz AC adapter power 45 W Security Password protection type BIOS