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Black 16 inch ThinkPad laptop closed matte finish

Lenovo

Lenovo ThinkPad E16 Gen 3 21SR0033US laptop Core Ultra 7 255H 16GB 512GB

SKU CH-2439-SDSPX MPN 21SR0033US

16-inch WUXGA notebook with Intel Core Ultra 7 255H, 16GB DDR5, 512GB SSD and Intel Arc 140T graphics

  • AI FeaturesAI Boost
  • Operating SystemWindows 11 Pro
  • CPU TypeIntel Core Ultra 7
  • Processor NameIntel Core Ultra 7 255H
  • Turbo Frequency5.10 GHz
  • Screen Size16.0"
  • Sharp visuals from 16.0" WUXGA 1920 x 1200 display
  • Fast multitasking with 16GB DDR5 5600 memory
  • Responsive storage via 512GB SSD
  • High turbo speed up to 5.10 GHz on Core Ultra 7 255H
  • Modern wireless using 802.11ax standard

16-inch WUXGA notebook with Core Ultra 7 255H

The ThinkPad E16 Gen 3 pairs a 16.0 inch 1920 x 1200 display at 60 Hz with an Intel Core Ultra 7 255H processor reaching 5.10 GHz turbo. Sixteen gigabytes of DDR5 5600 memory and a 512 GB SSD support multitasking and fast boot times. The integrated Intel Arc 140T GPU handles everyday graphics workloads. Windows 11 Pro is pre-installed for business environments.

Thermals and power in daily use

The CPU E-cores run up to 4.40 GHz with 24 MB of cache, balancing throughput and heat output for office applications. Fan activity stays low during typical document and browser workloads, keeping acoustic levels suited to shared workspaces. Power draw scales with the 140T graphics load, remaining moderate for a 16 inch chassis under normal productivity scenarios.

Build quality and connectivity implications

The non-touch WUXGA panel offers a matte finish that reduces glare under office lighting. An 802.11ax wireless radio provides modern Wi-Fi performance for cloud-based workflows. The English keyboard layout and black chassis match standard ThinkPad ergonomics. Buyers who want more storage or a discrete graphics option should consider other configurations.

Highlights

  • Sharp visuals from 16.0" WUXGA 1920 x 1200 display
  • Fast multitasking with 16GB DDR5 5600 memory
  • Responsive storage via 512GB SSD
  • High turbo speed up to 5.10 GHz on Core Ultra 7 255H
  • Modern wireless using 802.11ax standard

Specifications

BrandLenovo
SeriesThinkPad
ModelThinkPad E16 Gen 3
Part Number21SR0033US
AI FeaturesAI Boost
Operating SystemWindows 11 Pro
CPU TypeIntel Core Ultra 7
Processor NameIntel Core Ultra 7 255H
Turbo Frequency5.10 GHz
Screen Size16.0"
TouchscreenNon-Touch Screen
Display TypeWUXGA
Resolution1920 x 1200
Refresh Rate60 Hz
GPU/VPUIntel Arc 140T GPU
Graphic TypeIntegrated Card
SSD512GB
Memory16GB DDR5
Memory SpeedDDR5 5600
WLAN802.11ax Wireless LAN
BluetoothYes
HDMI1 x HDMI
EthernetGigabit Ethernet
Webcam5 Megapixel
TypeHome / Personal
Dimensions (W x D x H)Height:
0.83"
Width:
14"
Depth:
9.8"
Weight3.59 lb
Package ContentThinkPad E16 Gen 3 (Intel) 21SR0033US
Standard Battery
AC Adapter
Shipping weight2.77 kg
Package size495 × 325 × 79 mm

Questions about this item

How do I install the DDR5 5600 memory in the ThinkPad E16 Gen 3, and what step do people get wrong?

Power off and unplug the laptop, remove the base screws, lift the cover, align the DDR5 5600 module notch with the slot key, press firmly until the side clips click, then reassemble; the step often missed is pressing evenly on both ends until both clips engage.

What maintenance or replacement will the 512 GB SSD need later?

The 512 GB SSD has no moving parts and requires no scheduled maintenance; replacement is only needed if capacity runs out or a drive health tool reports media wear, at which point a compatible M.2 module can be swapped in.

What limit appears first on the Intel Arc 140T GPU during sustained workloads?

Under continuous load the Intel Arc 140T GPU hits its thermal ceiling first; the shared cooling system throttles clock speeds to keep temperatures safe, which reduces 3D performance before the 5.10 GHz CPU turbo limit is reached.

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