Asus Zenbook 15 OLED UM3504 vs Asus Zenbook 14 OLED Q415 Comparison

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Asus Zenbook 15 OLED UM3504

15.6 inches | April 2023

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Asus Zenbook 14 OLED Q415

14 inches | March 2024

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Asus Zenbook 15 OLED UM3504 vs Asus Zenbook 14 OLED Q415 Comparison Overview

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In this review, we will be comparing Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415, two laptops by Asus. Asus Zenbook 15 OLED UM3504 was introduced to market in April 2023 and Asus Zenbook 14 OLED Q415 was launched in March 2024. There is only 11 months difference between Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 so we are expecting this to be a fair comparison regarding age and technology level.

Click for Available Configurations of the Laptops

Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 are members of Asus's ZenBook series of laptops. Below you can find the latest models from this series.

Asus ZenBook Series History

	Release Date	Screen Size	Dimensions	Weight
Asus Zenbook A14 UX3407	January 2025	14.0"	310.7 x 213.9 x 13.4-15.9 mm	0.9 kg (1.98 lbs)
Asus Zenbook 14 OLED Q425	March 2024	14.0"	312.4 x 220.1 x 14.9 mm	1.28 kg (2.82 lbs)
Asus Zenbook 14 OLED Q415	March 2024	14.0"	312.4 x 220.1 x 14.9 mm	1.28 kg (2.82 lbs)
Asus Zenbook 14 OLED UM3406	January 2024	14.0"	312.4 x 220.1 x 14.9 mm	1.2 kg (2.65 lbs)
Asus Zenbook Duo 14 2024 UX8406	January 2024	14.0"	313.5 x 217.9 x 14.6-19.9 mm	1.35 kg (2.98 lbs)
Asus Zenbook 14 OLED UX3405	December 2023	14.0"	312.4 x 220.1 x 14.9 mm	1.2 kg (2.65 lbs)
Asus Zenbook 15 OLED UM3504	April 2023	15.6"	354.8 x 226.6 x 14.9-15.8 mm	1.4 kg (3.09 lbs)
Asus Zenbook 14 Flip OLED UP3404	March 2023	14.0"	311.5 x 223.4 x 15.9 mm	1.5 kg (3.31 lbs)

Here is a brief look at the main features of Asus Zenbook 15 OLED UM3504 and Asus Zenbook 14 OLED Q415 before getting into our more detailed comparison.

Asus Zenbook 15 OLED UM3504 Key Specs

Launched in April 2023
15.6" IPS LCD, 16:9 Aspect Ratio Display
CPU: AMD Ryzen 5 7535U
GPU: Radeon 660M
8GB Ram
354.8 x 226.6 x 14.9-15.8 mm (13.97 x 8.92 x 0.59-0.62 inches)
Weight: 1.4 kg (3.09 lbs)

Asus Zenbook 14 OLED Q415 Key Specs

Launched in March 2024
14.0" Touchscreen - OLED, 16:10 Aspect Ratio Display
CPU: Intel Core Ultra 5 125H
GPU: Intel Arc iGPU (7-Cores)
8GB Ram
312.4 x 220.1 x 14.9 mm (12.3 x 8.67 x 0.59 inches)
Weight: 1.28 kg (2.82 lbs)

Let's read on the following sections in order to better understand in detail how Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 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 Zenbook 15 OLED UM3504 over Asus Zenbook 14 OLED Q415

Screen-to-Body Ratio	~83.5% vs ~82.7%	Larger screen area ratio
Side Bezel Thickness	4.7 mm vs 5.4 mm	0.7 mm thinner bezels
Display Size	15.6 inches vs 14 inches	Larger Screen Estate
Screen Type	Matte vs Glossy	potentially less reflections on screen
CPU Fabrication Process	6 nm vs 7 nm	Newer Generation CPU
Fingerprint Sensor	Yes vs No	Easy login with fingerprint
Numeric Pad	Yes vs No	Fast way to input numbers

Reasons to choose Asus Zenbook 14 OLED Q415 over Asus Zenbook 15 OLED UM3504

Weight	1.28 kg vs 1.40 kg	0.12 kg lighter
Screen PPI	162 ppi vs 141 ppi	More pixels per inch
Touch Screen	Yes vs No	Interact with your fingers
Screen Resolution	1920 x 1200 pixels vs 1920 x 1080 pixels	Higher pixel count screen
Max Brightness	500 nits vs 300 nits	Brighter Screen
GPU Fabrication Process	5 nm vs 7 nm	Newer Generation GPU
GPU FLOPS	4.92 TFLOPS vs 1.46 TFLOPS

Common Strengths of Asus Zenbook 14 OLED Q415 and Asus Zenbook 15 OLED UM3504

Launch Dates	April 2023 vs March 2024	Both laptops are recent models
Fast Charging Support	Yes vs Yes	Charge the battery in a shorter time
USB Power Delivery	Yes vs Yes	Charging via USB port gives flexibility
RAM Type	PCI-E Gen 4.0 (4x) vs PCI-E Gen 4.0 (4x)	Fast RAM type
Upgradable Storage	Yes vs Yes	Option to increase the Storage size
SSD Type	NVMe vs NVMe	Faster Data Transfers
Dolby Atmos Support	Yes vs Yes	3D Surround Sound Support
Wi-Fi Standard	v6E vs v6E	Fast and Reliable Wi-Fi Connections
Thunderbolt Port	v4 vs v4	Fast data and power transfer via Thunderbolt Port
HDMI Output	1x HDMI 2.1 vs 1x HDMI 2.1	Connect to External Displays via HDMI cable
VGA Output	No vs No	Connect to External Displays via VGA cable
Keyboard Backlight	Yes vs Yes	Easily see the keys under low light

Common Weaknesses of Asus Zenbook 14 OLED Q415 and Asus Zenbook 15 OLED UM3504

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

Asus Zenbook 15 OLED UM3504 vs Asus Zenbook 14 OLED Q415: Physical Specs Comparison

In this section, we will be comparing the physical specifications and body features of the Asus Zenbook 15 OLED UM3504 and the Asus Zenbook 14 OLED Q415.

Physical Specs
Weight	1.4 kg (3.09 lbs)	1.28 kg (2.82 lbs)
Surface Area	804 cm2 (124.6 inches2)	688 cm2 (106.6 inches2)
Screen to Surface Ratio	~83.5%	~82.7%
Side Bezel Thickness	~4.7 mm	~5.4 mm
Weight per Inch of Screen	0.09 kg/inch	0.09 kg/inch
	0.198 lbs/inch	0.198 lbs/inch
Colors	Gray, Blue	Gray
Cover Opening Angle	180Â°	180Â°

Comparison of the Asus Zenbook 15 OLED UM3504 and the Asus Zenbook 14 OLED Q415 External Dimensions

Weight

Zenbook 15 OLED UM3504 weighs 1.4 kg (3.09 lbs), whereas the Zenbook 14 OLED Q415 weighs 1.28 kg (2.82 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 Zenbook 15 OLED UM3504 1.40 kg

Avg: 15.0-15.9" 1.95 kg

Asus Zenbook 14 OLED Q415 1.28 kg

Avg: 14.0-14.9" 1.42 kg

Thickness Comparison

Asus Zenbook 15 OLED UM3504 15.80 mm

Avg: 15.0-15.9" 20.17 mm

Asus Zenbook 14 OLED Q415 14.90 mm

Avg: 14.0-14.9" 17.12 mm

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 Zenbook 15 OLED UM3504 is 0.09 kg/inch.In comparison, this value for the Asus Zenbook 14 OLED Q415 is 0.09 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
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
LG Gram 14 2-in-1 2022: 0.07 kg/inch

Asus Zenbook 15 OLED UM3504 vs Asus Zenbook 14 OLED Q415: Internals (CPU, GPU, RAM, Battery, SSD, etc.) Comparison

CPU Comparison

CPU Model	AMD Ryzen 5 7535U AMD Ryzen 7 7735U	Intel Core Ultra 5 125H Intel Core Ultra 7 155H Intel Core Ultra 9 185H
Base Frequency	2.9 GHz	1.2 GHz
Turbo Frequency	4.55 GHz	4.5 GHz
Number of Cores	6	Arc Graphics (7-
Number of Threads	12	18
L3 Cache	16 MB	18 MB
Integrated GPU	Radeon 660M	Arc Graphics (7-Cores)
CPU Fabrication Process	6 nm	7 nm
Cinebench 23 (Single)	1508	1726
Cinebench 23 (Multi)	9782	14856

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 Zenbook 15 OLED UM3504 and Asus Zenbook 14 OLED Q415.

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

Laptops with: AMD Ryzen 5 7535U

Laptops with: Intel Core Ultra 5 125H

GPU Comparison

GPU Model	Radeon 660M	Intel Arc iGPU (7-Cores)
Base Clock Frequency	1500 MHz
Boost CLock Frequency	1900 MHz	2200 MHz
TGP (Total Graphics Power)	40 W	W
Type	Integrated	Integrated
FLOPS	1,459 GFLOPS	4.92 TFLOPS
Memory Size	System Shared	System Shared
Memory Type	System Shared	LPDDR5
Memory Bus	System Shared
Memory Speed	System Shared	6.4 Gbps
Shading Units Cores	384	112
TMUs	24	7
ROPs	16	4

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 Zenbook 15 OLED UM3504 has a FLOPS value of 1.46 TFLOPS whereas the Asus Zenbook 14 OLED Q415 ' has a FLOPS value of 4.92 TFLOPS. If graphical performance of the laptop is important for your use type, the Asus Zenbook 14 OLED Q415 may be the better choice between these two setups.

RAM Comparison

RAM	8GB 16GB 32GB	8GB 16GB 32GB
Memory Bus	2x4 GB	2x4 GB
RAM Clock	6400 MHz	6400 MHz
RAM Type	LPDDR5	LPDDR5
Upgradable	No	No
Memory Bus	PCI-E Gen 4.0 (4x)	PCI-E Gen 4.0 (4x)

Both laptops, the Zenbook 15 OLED UM3504 and the Zenbook 14 OLED Q415, 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 Zenbook 15 OLED (UM3504)	Asus Zenbook 14 OLED (Q415)
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	67 Wh	75 Wh
Battery Type	Li-Ion	Li-Ion
Replaceable	No	No
Fast Charging	No	No
USB Power Delivery	Yes	Yes
Charging Port Position	Right	Right
Charge Power	65 W	65 W

On the other hand, the Zenbook 14 OLED Q415 features a higher battery capacity of 75 Wh, delivering longer usage time compared to the Zenbook 15 OLED UM3504's 67 Wh.

Battery Comparison

Asus Zenbook 15 OLED UM3504 67 Wh

Avg: 15.0-15.9" 62.1 Wh

Asus Zenbook 14 OLED Q415 75 Wh

Avg: 14.0-14.9" 55.79 Wh

STORAGE
The Zenbook 14 OLED Q415 offers a larger max storage capacity of 2 TB, providing more room for storing files and data compared to the Zenbook 15 OLED UM3504's storage capacity of 1 TB.

Storage Options	512 GB, 1 TB	512 GB, 1 TB, 2 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 Zenbook 15 OLED UM3504 vs Asus Zenbook 14 OLED Q415: Display Comparison

The display is an essential aspect to consider when comparing the Asus Zenbook 15 OLED UM3504 and Asus Zenbook 14 OLED Q415 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. Zenbook 15 OLED UM3504 has a display size of 15.6".On the other hand, Zenbook 14 OLED Q415 has a smaller 14.0" display.The total usable screen area of the Zenbook 15 OLED UM3504 is 670cm² / 104inch² whereas the Zenbook 14 OLED Q415's total usable screen area is 568cm² / 88inch².

PPI (Pixels per Inch)
Additionally, the Zenbook 14 OLED Q415 features a higher pixel density with 162 pixels per inch (PPI), ensuring sharper image details.

Screen PPI (Pixels Per Inch) Comparison

Asus Zenbook 15 OLED UM3504 141 PPI

Avg: 15.0-15.9" 144 PPI

Asus Zenbook 14 OLED Q415 162 PPI

Avg: 14.0-14.9" 173 PPI

Refresh Rate
Both Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 offer the same refresh rate of 60 Hz.

Brightness
The Zenbook 14 OLED Q415 offers a higher maximum brightness of 500 nits, delivering a brighter screen.

Brightness Comparison

Asus Zenbook 15 OLED UM3504 300 nits

Avg: 15.0-15.9" 319 nits

Asus Zenbook 14 OLED Q415 500 nits

Avg: 14.0-14.9" 383 nits

Asus Zenbook 15 OLED UM3504 vs Asus Zenbook 14 OLED Q415 Connectivity Comparison

In terms of connectivity,

Wifi
Both laptops offer the same Wi-Fi standard (v6E), 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 Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 feature 1x USB 3.2 USB-A ports.
Both Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 feature 2x USB 4.0 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
Both Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 are equipped with Thunderbolt 4 ports.

HDMI
Both Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 feature an HDMI port (1x HDMI 2.1) 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
Neither Zenbook 15 OLED UM3504 nor Zenbook 14 OLED Q415 has an SD Card Reader.

Audio Jack
Both Zenbook 15 OLED UM3504 and Zenbook 14 OLED Q415 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)	v6E	v6E
Bluetooth (latest: v5.4)	v5.3	v5.3
USB-A (latest: 3.2)	1x USB 3.2	1x USB 3.2
USB Type-C (latest: USB4 2.0)	2x USB 4.0	2x USB 4.0
Thunderbolt (latest: 4)	Thunderbolt 4	Thunderbolt 4
HDMI (latest: 2.1)	1x HDMI 2.1	1x HDMI 2.1
Display Port (latest: v2.0)	No	No
VGA	No	No
Fingerprint Sensor	Yes	No
Optical Drive	No	No
Audio Jack 3.5mm	Yes	Yes
Ethernet RJ45	No	No
SD CardReader	No	No
Proprietary Charging Port	No	No