Review Lenovo ThinkPad X13 Gen 4
Lenovo ThinkPad X13 Gen 4 · Ryzen 7 PRO 7840U · Radeon 780M
AMD Ryzen 7 PRO 7840U · AMD Radeon 780M · 32GB LPDDR5X-6400 (onboard) · 512GB SSD (Samsung PM9B1) · 13.3″ 1920×1200 IPS 60Hz · 1.25 kg
Compact, thin and light – many connectivity options,
WWAN upgradeable, matte touchscreen,
ThinkPad input devices, better GPU performance than Intel competition,
fan mostly stays off.
Battery life worse than predecessor,
below average performance of Ryzen 7 PRO 7840U,
limited repairability and upgradeability,
no 64 GB RAM, no resolution > WUXGA.
CPU throttled – far below average for this processor
Display – 13.3″ WUXGA IPS · 60 Hz · 96.1% sRGB · no PWM
Panel: R133NW4K R0 – 13.3″ 1920×1200, IPS, matte, touch, 60 Hz.
| Specification | Value |
|---|---|
| Brightness (centre) | ~373 cd/m² |
| Brightness (average) | ~354 cd/m² |
| sRGB coverage | 96.1% |
| Display P3 coverage | 65.3% |
| AdobeRGB coverage | 66.8% |
| Response time (B/W) | 28.6 ms |
| Response time (grey) | 48.9 ms |
| PWM | Not detected |
| Finish | Matte (anti-glare) |
- Matte IPS panel – good for office use
- No PWM flickering – eye-friendly
- Good sRGB coverage (~96%)
- Slow response times – ghosting visible
- Limited to WUXGA – no higher resolution option
Panel FRU: R133NW4K R0 (13.3″ WUXGA IPS, 60Hz, matte, touch)
Processor – AMD Ryzen 7 PRO 7840U · 8c/16t · Phoenix (Zen 4)
- Model: AMD Ryzen 7 PRO 7840U – 8× Zen 4 cores
- Boost: 5.1 GHz
- TDP: 30 W PL2 / 20 W PL1 (sustained)
- Cinebench R23 Multi: ~10,576 pts
- Below average performance – throttled by low TDP
CPU throttled – far below average for Ryzen 7 PRO 7840U
CPU FRU: AMD Ryzen 7 PRO 7840U (Phoenix, soldered BGA)
Graphics – AMD Radeon 780M · integrated · RDNA 3
- Model: AMD Radeon 780M (RDNA 3)
- 3DMark Time Spy: ~2,472 pts
- Cyberpunk 2077 (1080p Ultra): ~18.9 fps
- Better GPU performance than Intel competitors
| Benchmark | Score |
|---|---|
| 3DMark Time Spy | 2,472 |
| 3DMark Fire Strike | 7,197 |
| Cyberpunk 2077 (1080p Ultra) | ~18.9 fps |
GPU FRU: AMD Radeon 780M (integrated, soldered)
Memory – 32GB LPDDR5X-6400 · onboard · not upgradeable
- Capacity: 32 GB LPDDR5X-6400 (onboard, quad-channel)
- Soldered – not upgradeable
- No 64 GB option
RAM is soldered – no upgrade options.
RAM FRU: LPDDR5X-6400 32GB (onboard) – not replaceable
Storage – 512GB Samsung PM9B1 · PCIe 4.0 · 1× M.2 2280 slot
- Drive: Samsung PM9B1 512GB MZVL4512HBLU – 512 GB, PCIe 4.0
- Seq. read: ~2,800 MB/s
- Seq. write: ~2,373 MB/s
- M.2 2280 slot – replaceable
SSD FRU: Samsung PM9B1 MZVL4512HBLU (512 GB, M.2 2280, PCIe 4.0)
Battery – ~10.1 hours · 54.7 Wh
- Capacity: 54.7 Wh
- WiFi surfing (150 nits): ~10.1 hours
- Battery life worse than predecessor (12.5 hours)
Battery FRU: 54.7 Wh (internal) – replaceable
AC Adapter FRU: 65W USB-C (Lenovo)
Chassis & Connectivity – Magnesium/Aluminum · 2× USB4 · Wi-Fi 6E · HDMI · SmartCard
- Materials: Magnesium/Aluminum
- Weight: 1.25 kg (2.76 lbs)
- Dimensions: 301.7 × 214.8 × 18.5 mm
- Left: 2× USB4, USB-A 3.2 Gen1, 3.5mm audio, SmartCard reader
- Right: nanoSIM slot, USB-A 3.2 Gen1, HDMI, Kensington lock
- 2× USB4
- Wi-Fi 6E (Qualcomm WCN685x)
- HDMI, SmartCard, WWAN upgradeable
WLAN FRU: Qualcomm WCN685x – soldered
Serviceability – RAM soldered · 1× M.2 · WLAN soldered
| Component | Replaceable? | Notes |
|---|---|---|
| SSD | ✅ Yes | 1× M.2 2280 slot – replaceable |
| RAM | ❌ No | Soldered LPDDR5X – not upgradeable |
| Wi-Fi | ❌ No | Soldered – not replaceable |
| Battery | ⚠️ Limited | 54.7 Wh – replaceable |
| Keyboard | ⚠️ Difficult | Not easily replaceable like older models |
| CPU/GPU | ❌ No | Soldered BGA |
RAM and WLAN are soldered – limited upgradability.
SSD is replaceable – but RAM and WLAN are not.
Components FRU / Model Numbers
| Component | FRU / Model |
|---|---|
| CPU | AMD Ryzen 7 PRO 7840U (Phoenix, soldered) |
| GPU | AMD Radeon 780M (integrated, soldered) |
| RAM | LPDDR5X-6400 32GB (onboard) – not upgradeable |
| SSD | Samsung PM9B1 MZVL4512HBLU (512 GB, M.2 2280, PCIe 4.0) |
| Display Panel | R133NW4K R0 (13.3″ WUXGA IPS, 60Hz, matte, touch) |
| WLAN | Qualcomm WCN685x – soldered |
| Battery | 54.7 Wh (internal) |
| AC Adapter | 65W USB-C (Lenovo) |
Procurement & Reseller Recommendations
CPURyzen 7 PRO 7840U – throttled below average
RAMSoldered – no upgrade
GPURadeon 780M – good iGPU for a business laptop
DisplayWUXGA IPS – slow response times
FansQuiet – max 40.9 dB(A)
Value~$1,575 – expensive for the performance
Key Selling Points vs. Competitors
Strengths
- Compact, thin and light
- Many connectivity options
- WWAN upgradeable
- Matte touchscreen
- ThinkPad input devices
- Better GPU performance than Intel competition
- Fan mostly stays off
Weaknesses
- Battery life worse than predecessor
- Below average performance of Ryzen 7 PRO 7840U
- Limited repairability and upgradeability
- No 64 GB RAM, no resolution > WUXGA
Pro tip for resellers & repair professionals:
• Highlight the compact size and ThinkPad input devices – key selling points.
• CPU is throttled – far below average for this processor – set expectations clearly.
• RAM and WLAN are soldered – limited upgradability.
• WWAN is upgradeable – great for business users.
• Battery life is worse than predecessor – recommend carrying the charger.
• Highlight the compact size and ThinkPad input devices – key selling points.
• CPU is throttled – far below average for this processor – set expectations clearly.
• RAM and WLAN are soldered – limited upgradability.
• WWAN is upgradeable – great for business users.
• Battery life is worse than predecessor – recommend carrying the charger.