HP EliteBook 840 Aero G8 Notebook vs. HP 255 G9 Notebook

Laptop Comparison, Reviews and Tests

Detailed comparison and review of HP EliteBook 840 Aero G8 Notebook and HP 255 G9 Notebook. With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.

HP EliteBook 840 Aero G8 Notebook Review

Advantages and disadvantages of HP EliteBook 840 Aero G8 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.

lightweight design

powerful intel processor

bright display

good battery life

robust security features

expensive price point

limited graphics performance

no HDMI port

average speaker quality

HP 255 G9 Notebook Review

Advantages and disadvantages of HP 255 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price

solid build quality

decent battery life

adequate port selection

includes numeric keypad

average display quality

modest processor performance

limited graphics capabilities

no backlit keyboard

Laptop Comparison and Tests

Difference between HP EliteBook 840 Aero G8 Notebook and HP 255 G9 Notebook
85 % - Design
83 % - Display
85 % - Performance
85 % - Connectivity
85 % - Battery
74 % - Design
66 % - Display
75 % - Performance
75 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

HP EliteBook 840 Aero G8 Notebook vs. HP 255 G9 Notebook Comparison Chart
DESIGN AND DIMENSIONS HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Product Type Notebook Notebook
Dimensions (WxDxH) 32.3 cm x 21.5 cm x 1.79 cm 35.8 cm x 24.2 cm x 1.99 cm
Weight 1.13 kg 1.74 kg
Case Material Magnesium alloy -
DISPLAY HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Screen Size (Type) 14" - IPS 15.6" - IPS
LCD Backlight Technology WLED backlight WLED backlight
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1080 (Full HD)
V-Sync Rate at Max Res. 60 Hz 60 Hz
Widescreen Yes Yes
Image Brightness 250 cd/m² 250 cd/m²
Colour Gamut 45% NTSC 45% NTSC
Features Full HD ultra wide-viewing angle (UWVA) anti-glare Full HD ultra wide-viewing angle (UWVA) eDP anti-glare, Micro Edge, narrow-bezel design
PROCESSOR HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
CPU Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz AMD Ryzen 5 5625U / 2.3 GHz
Max Turbo Speed 4.2 GHz 4.3 GHz
Number of Cores Quad-Core 6-core
Cache L3 - 8 MB L3 - 16 MB
Features Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel Smart Cache -
MEMORY HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
RAM 8 GB (1 x 8 GB) 8 GB (1 x 8 GB (non customer accessible / upgradeable))
Max RAM Supported 64 GB 32 GB
RAM Type DDR4 SDRAM - non-ECC DDR4 SDRAM - non-ECC
Speed 3200 MHz 3200 MHz
Rated Speed 3200 MHz 3200 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 2 2
Empty Slots 1 1
STORAGE HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe) 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe), HP Value
AUDIO & VIDEO HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Graphics Processor (GPU) Intel Iris Xe Graphics AMD Radeon Graphics
Video System Features - AMD FreeSync
Camera Yes - HD Yes - HD
Camera Features Privacy shutter, IR camera Temporal Noise Reduction
Video Resolutions 720p 720p
Sound Dual stereo speakers, HP World Facing Microphone / dual-array digital microphone Dual stereo speakers, dual array microphone
Codec - Realtek ALC3247
Audio Features Bang & Olufsen Audio -
COMMUNICATIONS HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Wireless Bluetooth 5.0, 802.11a/b/g/n/ac/ax 802.11a/b/g/n/ac/ax, Bluetooth 5.2
Wireless Controller Intel Wi-Fi 6 AX 201 - PCI Express Mini Card (M.2) Realtek RTL8852BE - PCI Express Mini Card (M.2)
Network Interface - Gigabit Ethernet
Bluetooth Class - Class 2
Compliant Standards - IEEE 802.1x, IEEE 802.11i, Wi-Fi CERTIFIED
Remote Management Protocol - SNMP 2
Features Miracast, dual stream (2x2) Miracast, Wake-on-LAN (WOL), dual stream (2x2), MU-MIMO
BATTERY HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Technology 3-cell lithium polymer 3-cell lithium polymer
Battery Capacity (Size) 53 Wh 41 Wh
Battery Life Up to 14.75 hours Up to 10.25 hours
AC ADAPTER HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Input AC 115/230 V (50/60 Hz) AC 115/230 V (50 - 60 Hz)
Output 65 Watt 45 Watt, 19.5 V, 8 A
INPUT HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Type Keyboard, ClickPad Keyboard, touchpad
Keyboard Name HP Premium Collaboration Keyboard -
Numeric Keypad - Yes
Keyboard Backlight Yes -
Features Precision touchpad, multi-gesture clickpad, glass clickpad, spill-resistant Multi-touch touchpad, gesture function, precision touchpad, PTP certified touchpad
CONNECTIONS & EXPANSIONS HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Interfaces Headphone/microphone combo jack
USB 3.2 Gen 1
USB 3.2 Gen 1 (charging)
HDMI
2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery)
Headphone/microphone combo jack
USB-C 3.2 Gen 1
HDMI
LAN
2 x USB 3.2 Gen 1
Memory Card Reader - Yes (SD Card, SDHC Card, SDXC Card)
SOFTWARE HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Operating System (OS) Windows 10 Pro + Windows 11 License (may come preloaded with Windows 11) - English Windows 11 Home - English
Software Included HP Support Assistant, HP Power Manager, HP Hotkey Support, Windows Defender, HP PC Hardware Diagnostics UEFI, HP Wireless Button Driver, HP Client Catalog, HP Driver Packs, HP BIOS Config Utility, HP Image Assistant, HP System Software Manager, HP Notifications, HP Connection Optimizer, HP Privacy Settings, HP QuickDrop, HP WorkWell, HP Client Management Script Library (free download), myHP, Touchpoint Customiser for Commercial, HP Noise Cancellation Software, Tile, HP Manageability Integration Kit Gen4, HP Easy Clean, HP Smart Support HP Support Assistant, Dropbox, McAfee (30 days trial), HP Audio Switch, HP PC Hardware Diagnostics, HP Connection Optimizer, HP Privacy Settings, ExpressVPN (30 days trial), HP QuickDrop, HP Smart App, myHP, Touchpoint Customiser for Commercial, LastPass password manager (30 days trial), HP Smart Health (free download)
MISCELLANEOUS HP EliteBook 840 Aero G8 Notebook HP 255 G9 Notebook
Included Accessories HP 65W Smart AC Adapter HP 45 Watt Smart nPFC AC Adapter
Bundled with HP Wolf Pro Security Edition (3 years) -
Integrated Options Ambient light sensor, hall sensor, tamper sensor -
Security Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Trusted Platform Module (TPM 2.0) Security Chip
Security Slot Type Kensington nano security slot -
Theft/Intrusion Protection Security lock slot (cable lock sold separately) -
Features Automatic DriveLock, BIOS Absolute Persistence, HP DriveLock, Power On Authentication, Pre-boot Authentication, BIOS Update via Network, HP Sure Click, HP Sure Sense, HP Secure Erase, HP Sure Start Gen 6, HP Pro Security Edition, Secured-core PC capable, HP Sure Run Gen 4, HP Client Security Manager Gen 7, HP BIOSphere Gen 6, HP Sure Recover Gen 4 HP Fast Charge
Compliant Standards CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FCC, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP, BNCI UL, VCCI, BSMI, SABS, CCC, FCC, A-Tick, ICES, KC, EAC, CU, ICCP
ENERGY STAR Certified Yes Yes
TCO Certified TCO Certified Notebooks 8 -
Max Operating Temperature 35 °C 35 °C
Min Operating Temperature 0 °C 5 °C
Humidity Range Operating 10 - 90% (non-condensing) 10 - 90%
Manufacturer Warranty Limited warranty - parts and labour - 3 years Limited warranty - parts and labour - 1 year
Limited warranty - battery - 1 year
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