Asus Vivobook Pro 15 OLED (K3500) vs ExpertBook B5 Flip OLED (11th Gen Intel)

You can select specific configurations for the laptops to get a more accurate comparative review
Display 1920 x 1080
GPU Intel UHD Graphics Xe G4


Evaluation of Asus Vivobook Pro 15 OLED (K3500) and ExpertBook B5 Flip OLED (11th Gen Intel) important characteristics
System and application performance
Performance in popular 3D games
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Ports, webcam and other interfaces
Design, materials, durability and usability

Key Differences

What are the key differences between the notebooks
Advantages of the Asus Vivobook Pro 15 OLED (K3500)
  • Includes an old-school USB-A port
  • Can run popular games at about 100-137% higher FPS
  • Around 2.2x better multi-core CPU performance in the Cinebench R23 test
  • Thinner bezels and 6% higher screen-to-body ratio
  • Provides 50% higher max. screen brightness: 600 vs 400 nits
Advantages of the Asus ExpertBook B5 Flip OLED (11th Gen Intel)
  • Easier to carry: weighs 350 grams less (around 0.77 lbs)
  • Higher number of cutting-edge USB Type-C ports: 2 versus 1
  • Display has support for touch input
  • User-upgradable RAM (up to 48GB)
  • Much smaller footprint: 23% more compact case (100.9 vs 131.3 square inches)
  • 18% sharper screen – 166 versus 141 pixels per inch (PPI)
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Tests and Specifications

Comparison table of test results and technical specs


Weight 1.65 kg (3.64 lbs) 1.3 kg (2.87 lbs)
Dimensions 359.8 x 235.3 x 19.9 mm
14.17 x 9.26 x 0.78 inches
309 x 210.6 x 16.9 mm
12.17 x 8.29 x 0.67 inches
Area 847 cm2 (131.2 inches2) 651 cm2 (100.9 inches2)
Screen-to-body ratio ~79.3% ~74.9%
Side bezels 7.2 mm 7.3 mm
Colors Silver, Blue Black
Transformer No Yes
Opening angle 135° 360°
Size comparison
Cooling solution
Cooling system Active Active
Vapor chamber No No
Number of fans 2 1
Noise level 48.3 dB 45 dB


Size 15.6 inches 13.3 inches
Refresh rate 60 Hz 60 Hz
PPI 141 ppi 166 ppi
Aspect ratio 16:9 16:9
Resolution 1920 x 1080 pixels 1920 x 1080 pixels
HDR support Yes, HDR10 Yes, HDR10
Touchscreen No Yes
Coating Glossy Matte
Display tests
Contrast 1000000:1 1661:1
sRGB color space 99.9% 98.9%
Adobe RGB profile 95.8% 68.5%
DCI-P3 color gamut 99.9% 66.3%
Response time 3 ms 29 ms


Full charging time 2:00 hr -
Battery type Li-Ion Li-Po
Replaceable No No
Fast charging Yes Yes
USB Power Delivery Yes Yes
Charging port position Right Left
Charge power 65 / 120 W 65 W
Weigh of AC adapter 446 gramm 331 gramm


CPU name
Base frequency 2.6-3.1 GHz 1.7-3.0 GHz
Turbo frequency 4.4 GHz 4.1 GHz
Cores 4 2
Threads 8 4
L3 Cache 8 MB 6 MB
Integrated GPU Intel Iris Xe Graphics 80EU Intel Iris Xe Graphics G4
Fabrication process 10 nm 10 nm


Graphics Card

GPU name
TGP - 15 W
Nvidia Optimus Yes -
Type Dedicated Integrated
Fabrication process 12 nm 10 nm
GPU base clock 990 MHz 300 MHz
GPU boost clock 1155 MHz 1100 MHz
Memory size 4 GB System Shared
Memory type GDDR6 DDR4
Memory bus 128 bit -
Memory speed ~10 Gbps 3.2 Gbps
Shading units 1024 384
DirectX support 12 12
GPU performance


RAM size
Channels 2x4 GB 1x4 GB
Clock 3200 MHz 3200 MHz
Type DDR4 DDR4
Upgradable No Yes
Total slots - 2
Max. ram size - 48 GB


Storage size
Bus PCI-E Gen 3.0 (4x) PCI-E Gen 3.0 (4x)
Storage type SSD (M2) SSD (M2)
Channels 1x256 GB 1x256 GB
Upgradable Yes Yes
Total slots 1 2
NVMe Yes Yes


Speakers 2.0 2.0
Dolby Atmos No No
Loudness 79.3 dB 81.9 dB
Microphones 2 2


Wi-Fi standard v6 v6
Bluetooth v5 v5
Fingerprint Optional Yes
Optical drive No No
Webcam Above the display Above the display
Webcam resolution 1280 x 720 1280 x 720
USB-A 3x USB 3.2 1x USB 3.2
USB Type-C 1x USB 4.0 2x USB 4.0
Thunderbolt Thunderbolt 4 Thunderbolt 4
HDMI 1x HDMI 1.4 1x HDMI 2.0
DisplayPort No No
Audio jack (3.5 mm) Yes Yes
Ethernet (RJ45) No No
SD card reader Yes Yes
Proprietary charging port Yes No


Keyboard type Island Island
Numpad Yes No
Backlight Yes Yes
Key travel 1.3 mm 1.5 mm
Size - 10.0 x 6.0 cm
Surface Plastic -
Windows Precision Yes Yes
*Disclaimer! Ports, speakers, display, and other specifications can be different depending on the laptop’s particular configuration or region.

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