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Model-specific guide
HP · EliteBook

HP EliteBook 840 G8

Everything you need to understand this laptop — core hardware, graphics, display, connectivity and practical upgrade options.

Full specificationsRAM compatibilitySSD upgrade guide
Processor

11th-gen Intel Core i5-1135G7 or Core i7-1165G7, depending on configuration

Graphics

Integrated Intel Iris Xe Graphics; full Iris Xe capability requires dual-channel memory

RAM ceiling

Up to 64 GB listed

Storage

M.2 PCIe NVMe (Gen 3)

The complete picture

Hardware specifications

Options can vary by product number, country and factory configuration. Unknown details are labelled rather than guessed.

12 specification entries

Performance

Processor, graphics and acceleration

Processor options
  • 11th-gen Intel Core i5-1135G7 or Core i7-1165G7, depending on configuration
GPU
  • Integrated Intel Iris Xe Graphics
  • full Iris Xe capability requires dual-channel memory
Chipset / NPU
  • Chipset integrated with processor
  • no dedicated NPU listed

Display & media

Screen, camera and sound

Panel
  • 14-inch FHD (1920 × 1080) options from 250 nits/45% NTSC to 400 nits/100% sRGB
  • optional 1000-nit Sure View privacy panel
Camera
  • HD webcam
  • selected configurations include IR camera for Windows Hello
Audio
  • Stereo speakers, dual-array microphones and combo headphone/microphone jack

Connectivity & security

Ports, wireless and protection

Ports
  • USB-C Thunderbolt 4 ×2, USB-A 3.2 Gen 1 ×2 (one charging), HDMI 2.0, AC power, audio combo jack
  • nano-SIM slot only on WWAN configurations
Wireless
  • Wi-Fi 6 and Bluetooth 5 combo card options
  • optional WWAN on selected configurations
Security
  • Optional fingerprint reader, IR camera and HP security features

Power & design

Battery, operating system and build

Battery
  • Internal 56 Wh battery
  • HP Fast Charge support with a suitable 65 W adapter
Weight / dimensions
  • Non-touch starts around 1.35 kg
  • 32.33 × 21.46 × 1.78 cm
  • configuration changes weight
Operating system
  • Originally offered with Windows 10 and FreeDOS options
  • current OS depends on installation and updates

Plan your upgrade

Possible upgrades

See the listed RAM ceiling, storage options and what each upgrade is useful for. Maximums are only shown when supported by the model information available here.

RAM upgrade

Up to 64 GB

Listed model capacity; confirm your exact configuration before buying.

SSD upgrade

Max listed capacity: 2 TB

Capacity shown is based on documented manufacturer options, not necessarily a hard limit. Confirm the exact configuration and connector before buying.

RAM upgrade

Increase memory for smoother multitasking

Everyday multitasking

Option 1

Useful for: Schoolwork, browsing and productivity apps

Suggested upgrade

If currently at 8 GB, consider 16 GB using a compatible two-module setup where possible.

Compatibility to check

DDR4-3200 SO-DIMM. HP lists configurations up to 64 GB (2 × 32 GB).

Heavy multitasking

Option 2

Useful for: Development, creative apps and virtual machines

Suggested upgrade

Consider 32 GB (2 × 16 GB) or, if needed, the listed 64 GB maximum.

Compatibility to check

Two matched modules help enable dual-channel memory; confirm exact module compatibility.

Storage upgrade

Replace or add storage where supported

Expand the main drive

Option 1

Useful for: More room for apps and files

Suggested upgrade

Replace the existing M.2 PCIe NVMe SSD with a higher-capacity compatible drive; HP listed options up to 2 TB.

Compatibility to check

Confirm the SSD length and exact product configuration before purchasing.

Intel Iris Xe graphics benefits from dual-channel memory. Confirm the exact unit before choosing modules.

Check before you buy

Upgrade compatibility

RAM specifications

Memory type, slots and listed capacity

Memory type
  • DDR4 SO-DIMM, dual-channel
Speed
  • 3200 MT/s
Slots
  • Not verified

HP lists 2-module configurations

Maximum
  • 64 GB

Listed configurations

1 × 4 GB2 × 4 GB1 × 8 GB2 × 8 GB1 × 16 GB2 × 16 GB2 × 32 GB (64 GB)
  • Mixed memory speeds run at the slower speed.
  • HP recommends HP-branded memory; some third-party modules may not work.
  • Intel Iris Xe graphics needs dual-channel memory (two modules).

SSD & storage specifications

Drive format, connection and limits

Primary SSD
  • M.2 PCIe NVMe (Gen 3)
Max listed capacity
  • 2 TB

Largest drive HP offered

SSD length
  • Not verified
Second drive slot
  • Not verified

No additional restrictions listed.

Before you order parts

  • Open the bottom cover or check your product number on HP Support to confirm the SSD length before buying.
  • For best graphics performance, use two matched RAM modules.

Official specifications & sources

Manufacturer pages are the reference for exact configurations.