ASUS Vivobook Pro 15 OLED K3500 vs ASUS Vivobook Pro 14 OLED M3401 Comparison

Laptop to replace

Change

ASUS Vivobook Pro 15 OLED K3500

15.6 inches | November 2021

CHECK PRICE

Change

ASUS Vivobook Pro 14 OLED M3401

14 inches | December 2021

CHECK PRICE

ASUS Vivobook Pro 15 OLED K3500 vs ASUS Vivobook Pro 14 OLED M3401 Comparison Overview

ASUS Vivobook Pro 15...

See at AMAZON

ASUS Vivobook Pro 14...

See at AMAZON

ASUS Vivobook Pro 15...

See at AMAZON

ASUS Vivobook Pro 14...

See at AMAZON

In this review, we will be comparing Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401, two laptops by ASUS. ASUS Vivobook Pro 15 OLED K3500 was introduced to market in November 2021 and ASUS Vivobook Pro 14 OLED M3401 was launched in December 2021. There is only 1 months difference between Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 so we are expecting this to be a fair comparison regarding age and technology level.

Click for Available Configurations of the Laptops

Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 are members of ASUS's VivoBook Pro series of laptops. Below you can find the latest models from this series.

ASUS VivoBook Pro Series History

	Release Date	Screen Size	Dimensions	Weight
Asus Vivobook Pro 15 OLED Q543	March 2024	15.6"	355.7 x 235.3 x 19.95 mm	1.9 kg (4.19 lbs)
Asus Vivobook Pro 15 OLED N6506	January 2024	15.6"	355.7 x 235.3 x 19.9 mm	1.8 kg (3.97 lbs)
ASUS VivoBook Pro 16X 3D OLED K6604, 2023	January 2023	16.0"	355 x 249 x 22.9 mm	2 kg (4.41 lbs)
Asus Vivobook Pro 15 OLED M6500	January 2023	15.6"	359.8 x 234.3 x 18.9-19.9 mm	1.8 kg (3.97 lbs)
Asus Vivobook Pro 16 K6602	August 2022	16.0"	355.3 x 252 x 19 mm	1.9 kg (4.19 lbs)
ASUS Vivobook Pro 14X OLED 12th Gen Intel	May 2022	14.5"	322.8 x 229.9 x 17.9 mm	1.68 kg (3.7 lbs)
ASUS Vivobook Pro 15X OLED 12th Gen Intel	May 2022	15.6"	355.4 x 239.8 x 20.9 mm	2.1 kg (4.63 lbs)
ASUS Vivobook Pro 16X OLED	May 2022	16.0"	354 x 248.5 x 19.9-21.9 mm	2.3 kg (5.07 lbs)

Here is a brief look at the main features of ASUS Vivobook Pro 15 OLED K3500 and ASUS Vivobook Pro 14 OLED M3401 before getting into our more detailed comparison.

ASUS Vivobook Pro 15 OLED K3500 Key Specs

Launched in November 2021
15.6" OLED, 16:9 Aspect Ratio Display
CPU: Intel Core i5 11300H
GPU: GeForce GTX 1650 Max-Q 4GB
8GB Ram
359.8 x 235.3 x 19.9 mm (14.17 x 9.26 x 0.78 inches)
Weight: 1.65 kg (3.64 lbs)

ASUS Vivobook Pro 14 OLED M3401 Key Specs

Launched in December 2021
14.0" OLED, 16:10 Aspect Ratio Display
CPU: AMD Ryzen 5 5600H
GPU: GeForce RTX 3050 Mobile 4GB
8GB Ram
317.4 x 228.5 x 18.9-19.2 mm (12.5 x 9 x 0.74-0.76 inches)
Weight: 1.4 kg (3.09 lbs)

Let's read on the following sections in order to better understand in detail how Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 compares and decide which one is better for you.

**This post contains affiliate links and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Reasons to choose ASUS Vivobook Pro 15 OLED K3500 over ASUS Vivobook Pro 14 OLED M3401

Screen-to-Body Ratio	~79.3% vs ~78.4%	Larger screen area ratio
Side Bezel Thickness	7.2 mm vs 7.9 mm	0.7 mm thinner bezels
Display Size	15.6 inches vs 14 inches	Larger Screen Estate
Noise Level	48.3 dB vs 56 dB	Less fan noise
Contrast Rate	427720:1 vs 5486:1	more pleasing colors
DCI-P3 Color Gamut	99.9% vs 99.4%	Wider DCI-P3 Color Gamut
Adobe RGB Profile	95.8% vs 94.7%	Wider Adobe RGB Coverage
USB Power Delivery	Yes vs No	Charges via USB-C type cable
Speaker Loudness	79.3 dB vs 75.3 dB	Generates higher sound levels
USB-C Port Type	v4.0 vs v3.2	Faster USB-C connection
Thunderbolt	v4 vs No	Support audio, data, power and video all through one single port
Numeric Pad	Yes vs No	Fast way to input numbers

Reasons to choose ASUS Vivobook Pro 14 OLED M3401 over ASUS Vivobook Pro 15 OLED K3500

Weight	1.40 kg vs 1.65 kg	0.25 kg lighter
Refresh Rate	90 Hz vs 60 Hz	Smoother media experience
Screen PPI	243 ppi vs 141 ppi	More pixels per inch
Screen Resolution	2880 x 1800 pixels vs 1920 x 1080 pixels	Higher pixel count screen
Screen Type	Matte vs Glossy	potentially less reflections on screen
CPU Fabrication Process	7 nm vs 10 nm	Newer Generation CPU
GPU Fabrication Process	8 nm vs 12 nm	Newer Generation GPU
GPU FLOPS	4.32 TFLOPS vs 2.365 TFLOPS	Better typing feel
Key Travel	1.35 mm vs 1.3 mm	Lower Price (*may change depending on config, seller, location, and time)
Avg. MSRP Price	$800-1200 vs $1200-1600

Common Strengths of ASUS Vivobook Pro 14 OLED M3401 and ASUS Vivobook Pro 15 OLED K3500

Launch Dates	November 2021 vs December 2021	Both laptops are recent models
Screen Technology	OLED vs OLED	High Screen Quality
HDR Support	Yes, HDR10 vs Yes, HDR10	Watch HDR Clips
Fast Charging Support	Yes vs Yes	Charge the battery in a shorter time
RAM Type	PCI-E Gen 3.0 (4x) vs PCI-E Gen 3.0 (4x)	Fast RAM type
Upgradable Storage	Yes vs Yes	Option to increase the Storage size
SSD Type	NVMe vs NVMe	Faster Data Transfers
Wi-Fi Standard	v6 vs v6	Fast and Reliable Wi-Fi Connections
HDMI Output	1x HDMI 1.4 vs 1x HDMI 1.4	Connect to External Displays via HDMI cable
VGA Output	No vs No	Connect to External Displays via VGA cable
Built-in SD Card Reader	Yes vs Yes	Read & Write SD Cards
Keyboard Backlight	Yes vs Yes	Easily see the keys under low light

Common Weaknesses of ASUS Vivobook Pro 14 OLED M3401 and ASUS Vivobook Pro 15 OLED K3500

Touchscreen Capability	No vs No	No Touchscreen Capability
Upgradable RAM	No vs No	No Option to increase the RAM size

ASUS Vivobook Pro 15 OLED K3500 vs ASUS Vivobook Pro 14 OLED M3401: Physical Specs Comparison

In this section, we will be comparing the physical specifications and body features of the ASUS Vivobook Pro 15 OLED K3500 and the ASUS Vivobook Pro 14 OLED M3401.

Physical Specs
Weight	1.65 kg (3.64 lbs)	1.4 kg (3.09 lbs)
Surface Area	847 cm2 (131.2 inches2)	725 cm2 (112.5 inches2)
Screen to Surface Ratio	~79.3%	~78.4%
Side Bezel Thickness	~7.2 mm	~7.9 mm
Weight per Inch of Screen	0.11 kg/inch	0.10 kg/inch
	0.242 lbs/inch	0.22 lbs/inch
Colors	Silver, Blue	Silver, Blue
Cover Opening Angle	135Â°	130Â°

Comparison of the ASUS Vivobook Pro 15 OLED K3500 and the ASUS Vivobook Pro 14 OLED M3401 External Dimensions

Weight

Vivobook Pro 15 OLED K3500 weighs 1.65 kg (3.64 lbs), whereas the Vivobook Pro 14 OLED M3401 weighs 1.4 kg (3.09 lbs). There is a notable difference in weight between these two laptops. However, it's important to consider that comparing their weights directly may not provide a complete picture since they also have different display sizes.

Weight Comparison

ASUS Vivobook Pro 15 OLED K3500

Avg: 15.0-15.9"

ASUS Vivobook Pro 14 OLED M3401

Avg: 14.0-14.9"

Thickness Comparison

ASUS Vivobook Pro 15 OLED K3500

Avg: 15.0-15.9"

ASUS Vivobook Pro 14 OLED M3401

Avg: 14.0-14.9"

Another value that we use for comparing the weights of the laptops is the Weight per Inch of Screen, which is calculated by dividing the total weight of the model with its usable diagonal screen size. This value for the ASUS Vivobook Pro 15 OLED K3500 is 0.11 kg/inch.In comparison, this value for the ASUS Vivobook Pro 14 OLED M3401 is 0.10 kg/inch.Here are some of the best performing laptops in this area:

Microsoft Surface Go 4: 0.05 kg/inch
LG Gram SuperSlim 15.6 2023: 0.06 kg/inch
Asus ProArt PZ13 HT5306: 0.06 kg/inch
Asus Zenbook A14 UX3407: 0.06 kg/inch
Microsoft Surface Pro 12: 0.06 kg/inch
Dell Latitude 7330: 0.07 kg/inch
Lenovo ThinkPad X1 Nano Gen 2: 0.07 kg/inch
LG Gram 14 2022: 0.07 kg/inch

ASUS Vivobook Pro 15 OLED K3500 vs ASUS Vivobook Pro 14 OLED M3401: Internals (CPU, GPU, RAM, Battery, SSD, etc.) Comparison

CPU Comparison

CPU Model	Intel Core i5 11300H Intel Core i7 11370H	AMD Ryzen 5 5600H AMD Ryzen 7 5800H AMD Ryzen 9 5900HX
Base Frequency	2.6-3.1 GHz	3.3 GHz
Turbo Frequency	4.4 GHz	4.2 GHz
Number of Cores	4	6
Number of Threads	8	12
L3 Cache	8 MB	16 MB
Integrated GPU	Intel Iris Xe Graphics 80EU	Radeon RX Vega 7
CPU Fabrication Process	10 nm	7 nm
Geekbench 5 (Single)	1416	1426
Geekbench 5 (Multi)	4620	6579
Cinebench 23 (Single)	1399	1371
Cinebench 23 (Multi)	5381	9758

Above you can see the CPU options and the CineBench and GeekBench test scores for both laptops, which gives an idea about what kind of performance difference you may experience between the ASUS Vivobook Pro 15 OLED K3500 and ASUS Vivobook Pro 14 OLED M3401.

You may also read reviews of latest laptops with the same CPUs and compare them:

Laptops with: Intel Core i5 11300H

Laptops with: AMD Ryzen 5 5600H

GPU Comparison

GPU Model	GeForce GTX 1650 Max-Q 4GB GeForce RTX 3050 Mobile 4GB	GeForce RTX 3050 Mobile 4GB
Base Clock Frequency	930 MHz	1065 MHz
Boost CLock Frequency	1125 MHz	1343 MHz
TGP (Total Graphics Power)	30 W	45 W
Nvidia Optimus	Yes
Type	Dedicated	Dedicated
FLOPS	2.304 TFLOPS	5.501 TFLOPS
Memory Size	4 GB	4 GB
Memory Type	GDDR6	GDDR6
Memory Bus	128 bit	128 bit
Memory Speed	1250 MHz 10 Gbps effective	1500 MHz 12 Gbps effective
Shading Units Cores	1024	2048
TMUs	64	64
ROPs	32	32

GPU is as critical as the CPU for graphic heavy applications and the table above gives a picture of how the two GPU compares. FLOPS is a measure of a GPU's performance based on the number of floating-point arithmetic calculations that the processor can perform within a second. ASUS Vivobook Pro 15 OLED K3500 has a FLOPS value of 2.365 TFLOPS whereas the ASUS Vivobook Pro 14 OLED M3401 ' has a FLOPS value of 4.32 TFLOPS. If graphical performance of the laptop is important for your use type, the ASUS Vivobook Pro 14 OLED M3401 may be the better choice between these two setups.

RAM Comparison

RAM	8GB 16GB	8GB 16GB
Memory Bus	2x4 GB	2x4 GB
RAM Clock	3200 MHz	3200 MHz
RAM Type	DDR4	DDR4
Upgradable	No	No
Memory Bus	PCI-E Gen 3.0 (4x)	PCI-E Gen 3.0 (4x)

Both laptops, the Vivobook Pro 15 OLED K3500 and the Vivobook Pro 14 OLED M3401, come with similar RAM capacities of 8 GB, providing comparable performance in memory-intensive tasks.

LOCAL LLM Compatibility Evaluation

This quick guide shows what types of large language models (LLMs) each of these laptops could support, based on their respective hardware specifications. It's meant to help you compare their suitability for running AI models locally.

LLM Category	ASUS Vivobook Pro 15 OLED (K3500)	ASUS Vivobook Pro 14 OLED (M3401)
Small Models(1-3B):Examples: Phi-2, Qwen-1.8B	✔ Run smoothly.	✔ Run smoothly.
Medium Models(7-8B):Examples: Mistral-7B, Qwen-7B	✖ Not supported.	✖ Not supported.
Large Models(13-30B):Examples: Mixtral, Qwen-14B	✖ Not supported.	✖ Not supported.
Extra-Large Models(65B+):Examples: LLaMA2-70B, Qwen1.5-72B	✖ Not supported on most systems. Requires high-end GPU or advanced setup.	✖ Not supported on most systems. Requires high-end GPU or advanced setup.

Note: Optimized (e.g., 4-bit) models may run on limited hardware. Performance depends on runtime and setup.

📌 MoE Models: Some models like Mixtral 8x7B and Qwen3-30B-A3B use a Mixture of Experts (MoE) design, activating only part of the model during inference. This means they can often run efficiently on laptops with 12–16 GB of VRAM when quantized.

BATTERY

BATTERY	63 Wh	63 Wh
Battery Type	Li-Ion	Li-Ion
Replaceable	No	No
Fast Charging	No	No
USB Power Delivery	Yes	No
Charging Port Position	Right	Right
Charge Power	65 / 120 W	90 / 120 W
Full Charging Time	2:00 hr
AC Adapter Weight	220 / 446 gramm	480 gramm

Furthermore, both laptops have the same battery capacity of 63 Wh, ensuring comparable battery performance.

Battery Comparison

ASUS Vivobook Pro 15 OLED K3500

Avg: 15.0-15.9"

ASUS Vivobook Pro 14 OLED M3401

Avg: 14.0-14.9"

STORAGE
Both laptops, the Vivobook Pro 15 OLED K3500 and the Vivobook Pro 14 OLED M3401 have similar max. storage capacities of 1 TB, allowing for ample space to store files and applications.

Storage Options	256 GB, 512 GB, 1 TB	256 GB, 512 GB, 1 TB
Upgradable	Yes	Yes
Total Slots	1	1
Storage type	SSD (M2)	SSD (M2)
NVMe	Yes	Yes

If your budget allows, we recommend opting for the largest possible disk size, considering the potential increase in storage capacity needs in the future. However, please keep in mind the question 'What will the laptop be used for?' when making this decision. Of course, you can later upgrade the hard disk capacity by getting a larger disk. However, if your laptop has only one disk slot, it may not be as straightforward as a RAM upgrade, where you simply add or replace a module, as moving or cloning files to a new disk may be necessary.

ASUS Vivobook Pro 15 OLED K3500 vs ASUS Vivobook Pro 14 OLED M3401: Display Comparison

The display is an essential aspect to consider when comparing the ASUS Vivobook Pro 15 OLED K3500 and ASUS Vivobook Pro 14 OLED M3401 since its is the component that you interact the most and significantly impact the experience.

Screen Area and Dimensions

Now let's look at the comparison of the actual display areas of both laptops below, keeping the bezels around the screens out of the equation. Vivobook Pro 15 OLED K3500 has a display size of 15.6".On the other hand, Vivobook Pro 14 OLED M3401 has a smaller 14.0" display.The total usable screen area of the Vivobook Pro 15 OLED K3500 is 670cm² / 104inch² whereas the Vivobook Pro 14 OLED M3401's total usable screen area is 568cm² / 88inch².

PPI (Pixels per Inch)
Additionally, the Vivobook Pro 14 OLED M3401 features a higher pixel density with 243 pixels per inch (PPI), ensuring sharper image details.

Screen PPI (Pixels Per Inch) Comparison

ASUS Vivobook Pro 15 OLED K3500

Avg: 15.0-15.9"

ASUS Vivobook Pro 14 OLED M3401

Avg: 14.0-14.9"

Refresh Rate
The Vivobook Pro 14 OLED M3401 offers a higher refresh rate of 90 Hz, resulting in smoother motion and improved visual experience.

Both Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 boast the same response time of 3.0 ms.

Brightness
Both Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 offer the same maximum brightness of 600 nits (cd/m²).

Brightness Comparison

ASUS Vivobook Pro 15 OLED K3500

Avg: 15.0-15.9"

ASUS Vivobook Pro 14 OLED M3401

Avg: 14.0-14.9"

ASUS Vivobook Pro 15 OLED K3500 vs ASUS Vivobook Pro 14 OLED M3401 Connectivity Comparison

In terms of connectivity,

Wifi
Both laptops offer the same Wi-Fi standard (v6), ensuring fast and reliable wireless connections.

Below, you'll find a Wi-Fi Versions Table, along with their release dates and speeds, to provide a brief overview of its development.

Wi-Fi Versions and Speeds

Standard	Speed	Release Date	Network	Frequency Bands (GHz)
Wi-Fi 7	up to 40 Gbps (5 GB/s)	2023	802.11be	2.4, 5, 6
Wi-Fi 6E	up to 9.6 Gbps (1.2 GB/s)	2020	802.11ax	2.4, 5, 6
Wi-Fi 6	up to 9.6 Gbps (1.2 GB/s)	2019	802.11ax	2.4, 5
Wi-Fi 5	up to 6.93 Gbps (866.25 MB/s)	2014	802.11ac	2.4, 5
Wi-Fi 4	up to 600 Mbps (75 MB/s)	2009	802.11n	2.4, 5

* Please note that the provided transfer rates are maximum theoretical values, and real-life performance may vary based on environmental factors.

USB
Both Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 feature 3x USB 3.2 USB-A ports.
Both Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 have USB Type-C ports. Vivobook Pro 15 OLED K3500 has 1x USB 4.0 USB Type-C ports, while Vivobook Pro 14 OLED M3401 has 1x USB 3.2 USB Type-C ports.

Below, you'll find a table of USB ports, along with their release dates and speeds.
To mitigate the confusion caused by generation names, the USB Implementers Forum (USB-IF) suggests using marketing names like USB 5Gbps, USB 10Gbps, and so forth, based on their respective transfer rates.

USB Type and Speeds

USB Type	Version	Speed	Date	Other Features/Explanations
USB4	Gen 4 (2.0)	80 Gbps	2022	Also known as USB 80Gbps
USB4	Gen 3×2	40 Gbps	2019	Also known as USB 40Gbps
USB 3.2	3.2 Gen 2x2	20 Gbps	2019	Double the data transfer rates of Gen 2
USB 3.2	3.2 Gen 2	10 Gbps	2017	Previously known as USB 3.1
USB 3.2	3.2 Gen 1	5 Gbps	2017	Previously known as USB 3.0
USB 3.1	3.1 Gen 2	10 Gbps	2013	Faster data transfer rates
USB 3.0	3.1 Gen 1	5 Gbps	2010	SuperSpeed USB, improved data transfer rates
USB 2.0	2.0	480 Mbps	2000	High-speed data transfer
USB 1.0	1.0	1.5 Mbps	1996	Original USB standard

Thunderbolt
Vivobook Pro 15 OLED K3500 is equipped with Thunderbolt 4 port. Vivobook Pro 14 OLED M3401 does not have Thunderbolt port.

HDMI
Both Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 feature an HDMI port (1x HDMI 1.4) for connecting to external monitors.

Below, you'll find a comparison table detailing different HDMI versions, including their bandwidth, color depth, maximum resolution, and release dates. This information can be helpful in understanding the capabilities of each HDMI version and choosing the most suitable one for your needs.

HDMI Comparison Table

HDMI Version	Maximum Resolution	Bandwidth (Gbps)	Color Depth (bits)	Release Date
HDMI 2.1-2.1b	7680 x 4320 *(8K)* @ 60p 3840 x 2160 *(4K)* @ 120p	48.0	48	2017
HDMI 2.0-2.0b	3840 x 2160 *(4K)* @ 60p	18.0	48	2013
HDMI 1.4-1.4b	3840 x 2160 *(4K)* @ 30p	10.2	48	2009
HDMI 1.3-1.3a	2560 x 1440 @ 60p	10.2	48	2006
HDMI 1.0-1.2a	1920 x 1200 @ 60p	4.95	24	2002

* Please note that the provided resolution values represent the maximum supported resolution, and actual display quality may depend on other factors such as source content and connected devices.

SD Card Reader
Both Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 come with an SD Card Reader for easy access to memory cards.

Audio Jack
Both Vivobook Pro 15 OLED K3500 and Vivobook Pro 14 OLED M3401 are equipped with a 3.5mm Audio Jack, providing seamless connection to headphones and speakers.

To summarize the connectivity and ports details, please refer to the table below to see them listed.

Connectivity and Ports
WiFi Standard (latest: v7)	v6	v6
Bluetooth (latest: v5.4)	v5	v5
USB-A (latest: 3.2)	3x USB 3.2	3x USB 3.2
USB Type-C (latest: USB4 2.0)	1x USB 4.0	1x USB 3.2
Thunderbolt (latest: 5)	Thunderbolt 4	No
HDMI (latest: 2.1)	1x HDMI 1.4	1x HDMI 1.4
Display Port (latest: v2.0)	No	No
VGA	No	No
Fingerprint Sensor	Optional	Yes
Optical Drive	No	No
Audio Jack 3.5mm	Yes	Yes
Ethernet RJ45	No	No
SD CardReader	Yes	Yes
Proprietary Charging Port	Yes	Yes