HP EliteBook 645 G11 vs Asus Zenbook 14 OLED UM3402 Comparison

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HP EliteBook 645 G11

14 inches | September 2025

Speed 4

Size 9

Display 3.5

Gaming 2

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Asus Zenbook 14 OLED UM3402

14 inches | January 2023

Speed 3.5

Size 9

Display 7.5

Gaming 2

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HP EliteBook 645 G11 vs Asus Zenbook 14 OLED UM3402 Comparison Overview

HP EliteBook 645 G11

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Asus Zenbook 14 OLED...

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HP EliteBook 645 G11

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Asus Zenbook 14 OLED...

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In this review, we will be comparing EliteBook 645 G11 and Zenbook 14 OLED UM3402, two laptops from HP and Asus. HP EliteBook 645 G11 was introduced to market in September 2025 and Asus Zenbook 14 OLED UM3402 was launched in January 2023. As you can see, Zenbook 14 OLED UM3402 is 2 years older than EliteBook 645 G11. Let's see if this age difference between two laptops makes a big difference.

Click for Available Configurations of the Laptops

Here is a brief look at the main features of HP EliteBook 645 G11 and Asus Zenbook 14 OLED UM3402 before getting into our more detailed comparison.

HP EliteBook 645 G11 Key Specs

Launched in September 2025
14.0" IPS LCD, 16:10 Aspect Ratio Display
CPU: AMD Ryzen 5 7535U
GPU: Radeon 660M
8GB Ram
318.6 x 224.4 x 10.9-17 mm (12.54 x 8.83 x 0.43-0.67 inches)
Weight: 1.39 kg (3.06 lbs)

Asus Zenbook 14 OLED UM3402 Key Specs

Launched in January 2023
14.0" OLED, 16:10 Aspect Ratio Display
CPU: AMD Ryzen 5 5625U
GPU: Radeon RX Vega 7
8GB Ram
313.6 x 220.6 x 16.9 mm (12.35 x 8.69 x 0.67 inches)
Weight: 1.39 kg (3.06 lbs)

Let's read on the following sections in order to better understand in detail how EliteBook 645 G11 and Zenbook 14 OLED UM3402 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 HP EliteBook 645 G11 over Asus Zenbook 14 OLED UM3402

Screen Type	Matte vs Glossy	potentially less reflections on screen
CPU Fabrication Process	6 nm vs 7 nm	Newer Generation CPU
GPU Fabrication Process	6 nm vs 7 nm	Newer Generation GPU
GPU FLOPS	1.5 TFLOPS vs 1.108 TFLOPS	Faster RAM Type
RAM Type	DDR5 vs LPDDR4X	More RAM Options
Upgradable RAM	Yes vs No	Faster RAM
RAM BUS	PCI-E Gen 4.0 (4x) vs PCI-E Gen 3.0 (4x)	Higher Resolution Camera
Webcam Resolution	2592 x 1944 vs 1920 x 720	Connect more device at the same time
Number of USB-A Ports	2x USB 3.2 vs 1x USB 3.2	Faster USB-C connection
USB-C Port Type	v4.0 vs v3.2	Connects to the local network via Ethernet RJ45
Ethernet RJ45 Port	Yes vs No	Better typing feel
Key Travel	1.5 mm vs 1.4 mm

Reasons to choose Asus Zenbook 14 OLED UM3402 over HP EliteBook 645 G11

Screen-to-Body Ratio	~82.2% vs ~79.5%	Larger screen area ratio
Side Bezel Thickness	6.1 mm vs 8.6 mm	2.5 mm thinner bezels
Refresh Rate	90 Hz vs 60 Hz	Smoother media experience
Screen PPI	243 ppi vs 162 ppi	More pixels per inch
Screen Resolution	2880 x 1800 pixels vs 1920 x 1200 pixels	Higher pixel count screen
Max Brightness	600 nits vs 300 nits	Brighter Screen
Dolby Atmos Speakers	Yes vs No	3D Surround Sound Support
SD Card Reader	Yes vs No	Read & Write SD Cards with the built-in reader
Keyboard Backlight	Yes vs No	Easily see the keys under low light

Common Strengths of Asus Zenbook 14 OLED UM3402 and HP EliteBook 645 G11

Launch Dates	September 2025 vs January 2023	Both laptops are recent models
Fast Charging Support	Yes vs Yes	Charge the battery in a shorter time
RAM Type	DDR5 vs LPDDR4X	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	v6E vs v6E	Fast and Reliable Wi-Fi Connections
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

Common Weaknesses of Asus Zenbook 14 OLED UM3402 and HP EliteBook 645 G11

Touchscreen Capability	No vs No	No Touchscreen Capability

HP EliteBook 645 G11 vs Asus Zenbook 14 OLED UM3402: Physical Specs Comparison

In this section, we will be comparing the physical specifications and body features of the HP EliteBook 645 G11 and the Asus Zenbook 14 OLED UM3402.

Physical Specs
Weight	1.39 kg (3.06 lbs)	1.39 kg (3.06 lbs)
Surface Area	715 cm2 (110.7 inches2)	692 cm2 (107.3 inches2)
Screen to Surface Ratio	~79.5%	~82.2%
Side Bezel Thickness	~8.6 mm	~6.1 mm
Weight per Inch of Screen	0.10 kg/inch	0.10 kg/inch
	0.22 lbs/inch	0.22 lbs/inch
Colors	Silver	Black

Comparison of the HP EliteBook 645 G11 and the Asus Zenbook 14 OLED UM3402 External Dimensions

Weight

Weight Comparison

Displays size 14.0-14.9 inches

HP EliteBook 645 G11

Asus Zenbook 14 OLED UM3402

Min

Average

Max

Thickness Comparison

Displays size 14.0-14.9 inches

HP EliteBook 645 G11

Asus Zenbook 14 OLED UM3402

Min

Average

Max

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 HP EliteBook 645 G11 is 0.10 kg/inch.In comparison, this value for the Asus Zenbook 14 OLED UM3402 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
Asus ProArt PZ14 HT7407: 0.06 kg/inch
Dell Latitude 7330: 0.07 kg/inch
Lenovo ThinkPad X1 Nano Gen 2: 0.07 kg/inch

HP EliteBook 645 G11 vs Asus Zenbook 14 OLED UM3402: Internals Comparison

CPU Comparison

CPU Model	AMD Ryzen 5 7535U AMD Ryzen 7 7735U	AMD Ryzen 5 5625U AMD Ryzen 7 5825U AMD Ryzen 5 7530U AMD Ryzen 7 7730U
Base Frequency	2.9 GHz	2.3 GHz
Turbo Frequency	4.55 GHz	4.3 GHz
Number of Cores	6	6
Number of Threads	12	12
L3 Cache	16 MB	16 MB
Integrated GPU	Radeon 660M	AMD Radeon Vega 7
CPU Fabrication Process	6 nm	7 nm
Geekbench 5 (Single)	1481	1426
Geekbench 5 (Multi)	7618	5943
Cinebench 23 (Single)	1508	1380
Cinebench 23 (Multi)	9782	8206

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 HP EliteBook 645 G11 and Asus Zenbook 14 OLED UM3402.

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

Laptops with: AMD Ryzen 5 7535U

Laptops with: AMD Ryzen 5 5625U

GPU Comparison

GPU Model	Radeon 660M	AMD Radeon Vega 7
Base Clock Frequency	400 MHz	300 MHz
Boost CLock Frequency	1900 MHz	1800 MHz
TGP (Total Graphics Power)	15 W	10-45 W
Type	Integrated	Integrated
FLOPS	1.5 TFLOPS	1.108 TFLOPS
Memory Size	System Shared	System Shared
Memory Type	DDR5	LPDDR4X
Memory Bus	System Shared	System Shared
Memory Speed	4.8 Gbps	4.27 Gbps
Shading Units Cores	384	448
TMUs	24	28
ROPs	16	8

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. HP EliteBook 645 G11 has a FLOPS value of 1.5 TFLOPS whereas the Asus Zenbook 14 OLED UM3402 ' has a FLOPS value of 1.108 TFLOPS. If graphical performance of the laptop is important for your use type, the HP EliteBook 645 G11 may be the better choice between these two setups.

RAM Comparison

RAM	8GB 16GB 32GB 64GB	8GB 16GB
Memory Bus	1x8 GB	2x4 GB
RAM Clock	4800 MHz	4266 MHz
RAM Type	DDR5	LPDDR4X
Upgradable	Yes	No
Max RAM Size	64 GB
Total Slots	2

Both laptops, the EliteBook 645 G11 and the Zenbook 14 OLED UM3402, come with similar RAM capacities of 8 GB, providing comparable performance in memory-intensive tasks.