HP 255 G6 Notebook vs. Lenovo ThinkPad X1 Extreme Gen 5 (21DE)

Laptop Comparison, Reviews and Tests

Detailed comparison and review of HP 255 G6 Notebook and Lenovo ThinkPad X1 Extreme Gen 5 (21DE). 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.

Lenovo ThinkPad X1 Extreme Gen 5 (21DE) Review

Advantages and disadvantages of Lenovo ThinkPad X1 Extreme Gen 5 (21DE) based on its technical characteristics, features, user experience, expert reviews and price level.

powerful intel processors

robust build quality

excellent 4k display

advanced security features

wide connectivity options

high price point

heavier than competitors

average battery life

loud under load

Laptop Comparison and Tests

Difference between HP 255 G6 Notebook and Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
82 % - Design
85 % - Display
92 % - Performance
86 % - Connectivity
82 % - Battery

Laptop Specifications Comparison

HP 255 G6 Notebook vs. Lenovo ThinkPad X1 Extreme Gen 5 (21DE) Comparison Chart
DESIGN AND DIMENSIONS HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Product Type Notebook Notebook
Dimensions (WxDxH) 38 cm x 25.38 cm x 2.38 cm 35.95 cm x 25.38 cm x 1.79 cm
Weight 1.86 kg 1.88 kg
Case Material - Aluminium (bottom), carbon fibre (top)
Colour Jet black Black paint
DISPLAY HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Screen Size (Type) 15.6" - TN 16" - IPS
LCD Backlight Technology WLED backlight LED backlight
Screen Resolution 1366 x 768 (HD) 2560 x 1600 (WQXGA)
Pixel Density (ppi) 100 -
V-Sync Rate at Max Res. - 165 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:10
Image Brightness 220 cd/m² 500 cd/m²
Colour Gamut - 100% sRGB
Features Slim Design, HD standard-viewing angle (SVA) eDP anti-glare Anti-glare, 178° viewing angle, Low Blue Light technology, X-Rite Pantone factory color calibration
PROCESSOR HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
CPU AMD A6 9220 / 2.5 GHz Intel Core i7 (12th Gen) 12700H / 2.3 GHz
Max Turbo Speed 2.9 GHz 4.7 GHz
Number of Cores Dual-Core 14-core
Cache L2 - 1 MB 24 MB
64-bit Computing Yes -
Features - Integrated memory controller
MEMORY HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
RAM 4 GB (1 x 4 GB (non customer accessible / upgradeable)) 16 GB (1 x 16 GB)
Max RAM Supported 8 GB 64 GB
RAM Type DDR4 SDRAM DDR5 SDRAM
Speed 2133 MHz / PC4-19200 4800 MHz
Rated Speed 2400 MHz 4800 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 262-pin
Slots Qty 1 2
Empty Slots 0 1
STORAGE HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 SATA 6Gb/s - HP Value 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance
Optical Drive DVD-Writer -
AUDIO & VIDEO HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Multi-GPU Configuration - 1 single GPU card / integrated GPU
Graphics Processor (GPU) AMD Radeon R4 NVIDIA GeForce RTX 3050 Ti / Intel Iris Xe Graphics
Max Monitors Supported - 4 external monitor(s)
Video Memory - 4 GB GDDR6 SDRAM
Camera - Yes - 1080p
Camera Features - Privacy shutter, IR camera, Windows Hello, fixed focus
Sound Stereo speakers, microphone Stereo speakers, dual array microphone
Codec - Realtek ALC3306
Compliant Standards - High Definition Audio, Dolby Audio Premium, Dolby Voice
COMMUNICATIONS HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 NFC, Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller Intel Dual Band Wireless-AC 3168 - PCI Express Mini Card (M.2) Intel Wi-Fi 6E AX 211
Network Interface Gigabit Ethernet -
Compliant Standards IEEE 802.3ab, IEEE 802.1x, IEEE 802.11i, Wi-Fi CERTIFIED -
Features Single stream (1x1) Dual stream (2x2)
BATTERY HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Technology 3-cell Lithium Ion Lithium polymer
Battery Capacity (Size) 31 Wh 90 Wh
AC ADAPTER HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 45 Watt 170 Watt
INPUT HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Type Keyboard, touchpad Keyboard, TrackPoint, UltraNav
Numeric Keypad Yes -
Keyboard Backlight - Yes
Features Multi-touch touchpad, touchpad with gesture support Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad
CONNECTIONS & EXPANSIONS HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Slots - 2 x M.2 (PCI Express 4.0 x4) (1 free)
Interfaces 2 x USB 3.1 Gen 1
USB 2.0
VGA
HDMI
Headphone/microphone combo jack
LAN
USB 3.2 Gen 1
USB 3.2 Gen 1 (Always On)
2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
HDMI
Headphone/microphone combo jack
Memory Card Reader Yes (SD Card, SDHC Card, SDXC Card) Yes (SD Express Card)
SOFTWARE HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Operating System (OS) Windows 10 Home 64-bit Edition - English Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - German
Software Included HP Support Assistant, Bing Toolbar, HP ePrint, HP PC Hardware Diagnostics UEFI, Recovery Manager Installer, Microsoft Push Button Recovery, CyberLink Power Media Player, HP Touchpoint Manager, HP System Event Utility, HP JumpStart Glance by Mirametrix
MISCELLANEOUS HP 255 G6 Notebook Lenovo ThinkPad X1 Extreme Gen 5 (21DE)
Included Accessories Power adapter Power adapter
Security Firmware Trusted Platform Module (TPM 2.0) Security Chip Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader
Security Slot Type Kensington security slot Kensington nano security slot
Theft/Intrusion Protection Security lock slot (cable lock sold separately) Security lock slot (cable lock sold separately)
Features - Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0, certificate based BIOS authentication
Compliant Standards - RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TÜV Rheinland Low Blue Light Method 2
ENERGY STAR Certified Yes Yes
EPEAT Compliant - EPEAT Gold
TCO Certified - TCO Certified Notebooks 9
Max Operating Temperature - 35 °C
Min Operating Temperature - 5 °C
Humidity Range Operating - 8 - 95%
Manufacturer Warranty Limited warranty - 1 year
Limited warranty - battery - 1 year
Base warranty - 3 years - pick-up and return
Base warranty - battery - 1 year
Extended warranty - 3 years - on-site
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