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Slim silver-grey laptop with 15.3 inch screen, thin bezels, backlit keyboard and numeric keypad

Lenovo

Lenovo IdeaPad Slim 3 laptop AMD Ryzen 5 8540U 8GB 512GB 15.3" WUXGA Luna Grey

SKU CH-Z4EP-DEC0G

A 15.3 inch touch laptop with a Ryzen 5 8540U processor, 8 GB DDR5 RAM and a 512 GB NVMe SSD running Windows 11 Pro

  • ColorLuna Grey
  • Operating SystemWindows 11 Pro
  • CPU TypeAMD Ryzen 5 8000 Series
  • Processor NameAMD Ryzen 5 8540U
  • Screen Size15.3"
  • Display TypeWide UXGA

OperatingSystem Windows 11 Pro

Memory 8GB

SSD 512GB

  • Ryzen 5 8540U reaches 4.90 GHz for responsive multitasking
  • 3" WUXGA IPS touch display at 300 nits with anti-glare
  • 8 GB DDR5 and 512 GB PCIe NVMe SSD for fast load times
  • Wi-Fi 6 and Bluetooth 5.3 keep connections stable
  • 1080p IR camera with privacy shutter and Dolby Audio speakers

Product identity

The Lenovo IdeaPad Slim 3 is a 15.3-inch business laptop powered by an AMD Ryzen 5 8540U processor with AMD Radeon 740M graphics. It ships with 8 GB of DDR5 memory and a 512 GB PCIe NVMe SSD running Windows 11 Pro. The WUXGA touch display covers 45% NTSC at 300 nits. Buyers who want more storage or memory than the factory configuration provides should look elsewhere.

Sustained workloads

The 8540U operates at a 3.20 GHz base frequency and can reach 4.90 GHz under lighter loads. The 60 Wh battery and integrated Radeon 740M share a compact thermal envelope, so extended compile jobs or video exports will see clocks settle below the peak boost. Fan noise rises noticeably during long sessions. The 45% NTSC panel limits colour-critical work.

Installation experience

The laptop arrives ready to use with Windows 11 Pro pre-installed and a OneKey Recovery partition for system restore. Memory is not user-accessible, so the 8 GB configuration is fixed for the life of the device. The single Micro SD slot and two USB-A ports may require a hub for photographers or users with multiple peripherals. The IR camera supports Windows Hello face login out of the box.

Highlights

  • Ryzen 5 8540U reaches 4.90 GHz for responsive multitasking
  • 3" WUXGA IPS touch display at 300 nits with anti-glare
  • 8 GB DDR5 and 512 GB PCIe NVMe SSD for fast load times
  • Wi-Fi 6 and Bluetooth 5.3 keep connections stable
  • 1080p IR camera with privacy shutter and Dolby Audio speakers

Specifications

BrandLenovo
ColorLuna Grey
Operating SystemWindows 11 Pro
CPU TypeAMD Ryzen 5 8000 Series
Processor NameAMD Ryzen 5 8540U
Screen Size15.3"
Display TypeWide UXGA
Resolution1920 x 1200
GPU/VPUAMD Radeon 740M
SSD512GB
Memory8GB
WiFi GenerationWi-Fi 6
BluetoothYes
TouchpadYes
Backlit KeyboardBacklit
TypeWork / Business

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How loud or hot does the AMD Ryzen 5 8540U get during all-day workloads?

The 15.3-inch chassis uses a 60 Wh battery and low-power silicon, so typical office tasks stay cool and quiet; sustained loads spin the fan audibly but surface temperatures remain comfortable.

Which peripherals must I already own to use the USB-C port with power delivery and DisplayPort 1.2?

You need a USB-C charger that supports USB Power Delivery 3.0 and a monitor or dock with a DisplayPort 1.2 input or USB-C alt-mode; the laptop supplies up to 60 W through that port.

Will my older HDMI 1.4 monitor run at its native resolution alongside the internal 1920 x 1200 panel?

Yes, the HDMI 1.4 output drives external displays up to 4K at 30 Hz, so most legacy 1080p or 1440p screens work at their full resolution in extended or mirrored mode.

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