Acer Nitro 18 AI AN18-61 vs Lenovo ThinkBook 14 2-in-1 Gen 5 Comparison

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Acer Nitro 18 AI AN18-61

18 inches | April 2025

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14 inches | March 2025

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Acer Nitro 18 AI AN18-61 vs Lenovo ThinkBook 14 2-in-1 Gen 5 Comparison Overview

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In this review, we will be comparing Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5, two laptops from Acer and Lenovo. Acer Nitro 18 AI AN18-61 was introduced to market in April 2025 and Lenovo ThinkBook 14 2-in-1 Gen 5 was launched in March 2025. There is only 1 months difference between Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5 so we are expecting this to be a fair comparison regarding age and technology level.

Click for Available Configurations of the Laptops

Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5 are members of Lenovo's series of laptops. Below you can find the latest models from this series.

Acer Series History

	Release Date	Screen Size	Dimensions	Weight
Acer Aspire Go 15 AG15-71	August 2025	15.6"	362.9 x 237.5 x 19.9 mm	1.8 kg (3.97 lbs)
Acer Predator Triton 14 PT14-52	May 2025	14.0"	321.8 x 221 x 17.31 mm	1.6 kg (3.53 lbs)
Acer Predator Helios Neo 14 AI PHN14-71	May 2025	14.5"	323.9 x 254.7 x 20.8 mm	1.9 kg (4.19 lbs)
Acer Swift Go 14 AI OLED SFG14-75	May 2025	14.0"	312.4 x 227.4 x 9.7 mm	1.24 kg (2.73 lbs)
Acer Nitro Lite 16	April 2025	16.0"	362.2 x 248.47 x 22.9 mm	1.95 kg (4.3 lbs)
Acer Nitro 18 AI AN18-61	April 2025	18.0"	400.9 x 310.3 x 15.08-24.95 mm	3.02 kg (6.66 lbs)
Acer Nitro V 16S AI ANV16S-61	April 2025	16.0"	357.7 x 264 x 19.95 mm	2.1 kg (4.63 lbs)
Acer Nitro 16S AI AN16S-61	April 2025	16.0"	356.8 x 275.5 x 12.1-20.0 mm	2.18 kg (4.81 lbs)

Here is a brief look at the main features of Acer Nitro 18 AI AN18-61 and Lenovo ThinkBook 14 2-in-1 Gen 5 before getting into our more detailed comparison.

Acer Nitro 18 AI AN18-61 Key Specs

Launched in April 2025
18.0" IPS LCD, 16:10 Aspect Ratio Display
CPU: AMD Ryzen AI 7 350,AMD Ryzen AI 9 365
GPU: GeForce RTX 5060 Laptop 8GB,GeForce RTX 5070 Laptop 8GB,GeForce RTX 5070 Ti Laptop 12GB
8GB,16GB,32GB Ram
400.9 x 310.3 x 15.08-24.95 mm (15.78 x 12.22 x 0.59-0.98 inches)
Weight: 3.02 kg (6.66 lbs)

Lenovo ThinkBook 14 2-in-1 Gen 5 Key Specs

Launched in March 2025
14.0" Touchscreen - IPS LCD, 16:10 Aspect Ratio Display
CPU: Intel Core Ultra 5 225U,Intel Core Ultra 7 255U
GPU: Intel Arc iGPU (4-Cores)
8GB,16GB,32GB Ram
313 x 224 x 16.9 mm (12.32 x 8.82 x 0.67 inches)
Weight: 1.64 kg (3.62 lbs)

Let's read on the following sections in order to better understand in detail how Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5 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 Acer Nitro 18 AI AN18-61 over Lenovo ThinkBook 14 2-in-1 Gen 5

Display Size	18 inches vs 14 inches	Larger Screen Estate
Refresh Rate	165 Hz vs 60 Hz	Smoother media experience
Screen PPI	168 ppi vs 162 ppi	More pixels per inch
Screen Resolution	2560 x 1600 pixels vs 1920 x 1200 pixels	Higher pixel count screen
Screen Type	Matte vs Glossy	potentially less reflections on screen
Max Brightness	500 nits vs 300 nits	Brighter Screen
GPU Fabrication Process	4 nm vs 5 nm	Newer Generation GPU
GPU FLOPS	18.4 TFLOPS vs 2 TFLOPS	Dedicated GPU unit
GPU Type	Dedicated vs Integrated	More advanced Bluetooth connectivity
Bluetooth	v5.4 vs v5.3	Connect more device at the same time
Number of USB-A Ports	3x USB 3.2 vs 2x USB 3.2	Connects to the local network via Ethernet RJ45
Ethernet RJ45 Port	Yes vs No	Fast way to input numbers
Numeric Pad	Yes vs No	Easily see the keys under low light
Keyboard Backlight	Yes vs No

Reasons to choose Lenovo ThinkBook 14 2-in-1 Gen 5 over Acer Nitro 18 AI AN18-61

Weight	1.64 kg vs 3.02 kg	1.38 kg lighter
Screen-to-Body Ratio	~81.1% vs ~75.5%	Larger screen area ratio
Side Bezel Thickness	5.8 mm vs 6.6 mm	0.8 mm thinner bezels
Touch Screen	Yes vs No	Interact with your fingers
CPU Fabrication Process	3 nm vs 4 nm	Newer Generation CPU
Dolby Atmos Speakers	Yes vs No	3D Surround Sound Support
Fingerprint Sensor	Yes vs No	Easy login with fingerprint
Webcam Resolution	1920 x 1080 vs 1280 x 720	Higher Resolution Camera
Thunderbolt	v4 vs No	Support audio, data, power and video all through one single port

Common Strengths of Lenovo ThinkBook 14 2-in-1 Gen 5 and Acer Nitro 18 AI AN18-61

Launch Dates	April 2025 vs March 2025	Both laptops are recent models
Fast Charging Support	Yes vs Yes	Charge the battery in a shorter time
Upgradable RAM	Yes vs Yes	Option to increase the RAM size
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
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
Built-in SD Card Reader	Yes vs Yes	Read & Write SD Cards

Common Weaknesses of Lenovo ThinkBook 14 2-in-1 Gen 5 and Acer Nitro 18 AI AN18-61

HDR Support	No vs No	No HDR Support

Acer Nitro 18 AI AN18-61 vs Lenovo ThinkBook 14 2-in-1 Gen 5: Physical Specs Comparison

In this section, we will be comparing the physical specifications and body features of the Acer Nitro 18 AI AN18-61 and the Lenovo ThinkBook 14 2-in-1 Gen 5.

Physical Specs
Weight	3.02 kg (6.66 lbs)	1.64 kg (3.62 lbs)
Surface Area	1244 cm2 (192.8 inches2)	701 cm2 (108.7 inches2)
Screen to Surface Ratio	~75.5%	~81.1%
Side Bezel Thickness	~6.6 mm	~5.8 mm
Weight per Inch of Screen	0.17 kg/inch	0.12 kg/inch
	0.374 lbs/inch	0.264 lbs/inch
Colors	Black	Gray

Comparison of the Acer Nitro 18 AI AN18-61 and the Lenovo ThinkBook 14 2-in-1 Gen 5 External Dimensions

Weight

Nitro 18 AI AN18-61 weighs 3.02 kg (6.66 lbs), whereas the ThinkBook 14 2-in-1 Gen 5 weighs 1.64 kg (3.62 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

Acer Nitro 18 AI AN18-61

Avg: larger than 17.0"

Lenovo ThinkBook 14 2-in-1 Gen 5

Avg: 14.0-14.9"

Thickness Comparison

Acer Nitro 18 AI AN18-61

Avg: larger than 17.0"

Lenovo ThinkBook 14 2-in-1 Gen 5

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 Acer Nitro 18 AI AN18-61 is 0.17 kg/inch.In comparison, this value for the Lenovo ThinkBook 14 2-in-1 Gen 5 is 0.12 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

Acer Nitro 18 AI AN18-61 vs Lenovo ThinkBook 14 2-in-1 Gen 5: Internals (CPU, GPU, RAM, Battery, SSD, etc.) Comparison

CPU Comparison

CPU Model	AMD Ryzen AI 7 350 AMD Ryzen AI 9 365	Intel Core Ultra 5 225U Intel Core Ultra 7 255U
Base Frequency	2.0 GHz	1.5 GHz
Turbo Frequency	5 GHz	4.8 GHz
Number of Cores	8 (4P + 4E)	12 (2P + 10E)
Number of Threads	16	14
L3 Cache	16 MB	12 MB
Integrated GPU	Radeon 860M	Arc Graphics (4-Cores)
CPU Fabrication Process	4 nm	3 nm

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 Acer Nitro 18 AI AN18-61 and Lenovo ThinkBook 14 2-in-1 Gen 5.

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

Laptops with: AMD Ryzen AI 7 350,AMD Ryzen AI 9 365

Laptops with: Intel Core Ultra 5 225U,Intel Core Ultra 7 255U

Samsung Galaxy Book 5 Compare

GPU Comparison

GPU Model	GeForce RTX 5060 Laptop 8GB GeForce RTX 5070 Laptop 8GB GeForce RTX 5070 Ti Laptop 12GB	Intel Arc iGPU (4-Cores)
TGP (Total Graphics Power)	115 W	14 W
Nvidia Optimus	Yes, Advanced Optimus
Type	Dedicated	Integrated
FLOPS	18.4 TFLOPS	2 TFLOPS
Memory Size	8 GB	System Shared
Memory Type	GDDR7	DDR5
Memory Bus	128 bit
Memory Speed	~24 Gbps	5.6 Gbps
Shading Units Cores	3328	512
TMUs	104	32
ROPs	48	16

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. Acer Nitro 18 AI AN18-61 has a FLOPS value of 18.4 TFLOPS whereas the Lenovo ThinkBook 14 2-in-1 Gen 5 ' has a FLOPS value of 2 TFLOPS. If graphical performance of the laptop is important for your use type, the Lenovo ThinkBook 14 2-in-1 Gen 5 may be the better choice between these two setups.

RAM Comparison

RAM	8GB 16GB 32GB	8GB 16GB 32GB
Memory Bus	1x8 GB	1x8 GB
RAM Clock	5600 MHz	5600 MHz
RAM Type	DDR5	DDR5
Upgradable	Yes	Yes
Max RAM Size	32 GB	32 GB
Total Slots	2	2
Memory Bus	PCI-E Gen 4.0 (4x)	PCI-E Gen 4.0 (4x)

Both laptops, the Nitro 18 AI AN18-61 and the ThinkBook 14 2-in-1 Gen 5, 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	Acer Nitro 18 AI (AN18-61)	Lenovo ThinkBook 14 2-in-1 Gen 5
Small Models(1-3B):Examples: Phi-2, Qwen-1.8B	✔ Run smoothly.	✔ Run smoothly.
Medium Models(7-8B):Examples: Mistral-7B, Qwen-7B	✔ Good performance.	✔ Good performance.
Large Models(13-30B):Examples: Mixtral, Qwen-14B	⚠ Can run using CPU + RAM fallback. Expect slower performance.	⚠ Can run slowly on CPU with enough RAM and good iGPU.
Extra-Large Models(65B+):Examples: LLaMA2-70B, Qwen1.5-72B	⚠ Possible with CPU + RAM fallback using quantized models.	✖ 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	99 Wh	60 Wh
Battery Type	Li-Ion	Li-Po
Replaceable	No	No
Fast Charging	Yes	Yes
Charging Port Position	Bottom	Left
Charge Power	230 W	65 W

Moreover, the Nitro 18 AI AN18-61 boasts a larger battery capacity of 99 Wh, offering extended usage time compared to the ThinkBook 14 2-in-1 Gen 5's60 Wh.

Battery Comparison

Acer Nitro 18 AI AN18-61

Avg: larger than 17.0"

Lenovo ThinkBook 14 2-in-1 Gen 5

Avg: 14.0-14.9"

STORAGE
Both laptops, the Nitro 18 AI AN18-61 and the ThinkBook 14 2-in-1 Gen 5 have similar max. storage capacities of 2 TB, allowing for ample space to store files and applications.

Storage Options	512 GB, 1 TB, 2 TB	256 GB, 512 GB, 1 TB, 2 TB
Upgradable	Yes	Yes
Total Slots	2	2
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.

Acer Nitro 18 AI AN18-61 vs Lenovo ThinkBook 14 2-in-1 Gen 5: Display Comparison

The display is an essential aspect to consider when comparing the Acer Nitro 18 AI AN18-61 and Lenovo ThinkBook 14 2-in-1 Gen 5 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. Nitro 18 AI AN18-61 has a display size of 18.0".On the other hand, ThinkBook 14 2-in-1 Gen 5 has a smaller 14.0" display.The total usable screen area of the Nitro 18 AI AN18-61 is 939cm² / 146inch² whereas the ThinkBook 14 2-in-1 Gen 5's total usable screen area is 568cm² / 88inch².

PPI (Pixels per Inch)
Additionally, the Nitro 18 AI AN18-61 features a higher pixel density with 168 pixels per inch (PPI), ensuring sharper image details.

Screen PPI (Pixels Per Inch) Comparison

Acer Nitro 18 AI AN18-61

Avg: larger than 17.0"

Lenovo ThinkBook 14 2-in-1 Gen 5

Avg: 14.0-14.9"

Refresh Rate
The Nitro 18 AI AN18-61 offers a higher refresh rate of 165 Hz, resulting in smoother motion and improved visual experience.

Brightness
The Nitro 18 AI AN18-61 offers a higher maximum brightness of 500 nits, delivering a brighter screen.

Brightness Comparison

Acer Nitro 18 AI AN18-61

Avg: larger than 17.0"

Lenovo ThinkBook 14 2-in-1 Gen 5

Avg: 14.0-14.9"

Acer Nitro 18 AI AN18-61 vs Lenovo ThinkBook 14 2-in-1 Gen 5 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 Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5 have USB-A ports. Nitro 18 AI AN18-61 has 3x USB 3.2 USB-A ports, while ThinkBook 14 2-in-1 Gen 5 has 2x USB 3.2 USB-A ports.
Both Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5 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
ThinkBook 14 2-in-1 Gen 5 is equipped with Thunderbolt 4 port. Nitro 18 AI AN18-61 does not have Thunderbolt port.

HDMI
Both Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5 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
Both Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5 come with an SD Card Reader for easy access to memory cards.

Audio Jack
Both Nitro 18 AI AN18-61 and ThinkBook 14 2-in-1 Gen 5 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)	v5.4	v5.3
USB-A (latest: 3.2)	3x USB 3.2	2x USB 3.2
USB Type-C (latest: USB4 2.0)	2x USB 4.0	2x USB 4.0
Thunderbolt (latest: 5)	No	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	No	Yes
Optical Drive	No	No
Audio Jack 3.5mm	Yes	Yes
Ethernet RJ45	Yes	No
SD CardReader	Yes	Yes
Proprietary Charging Port	Yes	No