Samsung Galaxy Book 4 vs Lenovo Legion 5 17-inch 2021 AMD Comparison

Laptop to replace

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Samsung Galaxy Book 4

15.6 inches | March 2024

Speed 4.5

Size 8.5

Display 3.5

Gaming 2.5

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Lenovo Legion 5 17-inch 2021 AMD

17.3 inches | January 2021

Speed 4

Size 6.5

Display 3

Gaming 3

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Samsung Galaxy Book 4 vs Lenovo Legion 5 17-inch 2021 AMD Comparison Overview

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In this review, we will be comparing Galaxy Book 4 and Legion 5 17-inch 2021 AMD, two laptops from Samsung and Lenovo. Samsung Galaxy Book 4 was introduced to market in March 2024 and Lenovo Legion 5 17-inch 2021 AMD was launched in January 2021. As you can see, Legion 5 17-inch 2021 AMD is 3 years older than Galaxy Book 4. 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 Samsung Galaxy Book 4 and Lenovo Legion 5 17-inch 2021 AMD before getting into our more detailed comparison.

Samsung Galaxy Book 4 Key Specs

Launched in March 2024
15.6" IPS LCD, 16:9 Aspect Ratio Display
CPU: Intel Core 5 120U
GPU: Intel Iris Xe Graphics G7 (80EU)
8GB Ram
356.6 x 229.1 x 15.4 mm (14.04 x 9.02 x 0.61 inches)
Weight: 1.55 kg (3.42 lbs)

Lenovo Legion 5 17-inch 2021 AMD Key Specs

Launched in January 2021
17.3" IPS LCD, 16:9 Aspect Ratio Display
CPU: AMD Ryzen 5 5600H
GPU: GeForce RTX 3050 Mobile 4GB
8GB Ram
398.6 x 290 x 24.3-26.2 mm (15.69 x 11.42 x 0.96-1.03 inches)
Weight: 2.98 kg (6.57 lbs)

Let's read on the following sections in order to better understand in detail how Galaxy Book 4 and Legion 5 17-inch 2021 AMD 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 Samsung Galaxy Book 4 over Lenovo Legion 5 17-inch 2021 AMD

Weight	1.55 kg vs 2.98 kg	1.43 kg lighter
Screen-to-Body Ratio	~82.1% vs ~71.4%	Larger screen area ratio
Side Bezel Thickness	5.6 mm vs 7.8 mm	2.2 mm thinner bezels
Screen PPI	141 ppi vs 127 ppi	More pixels per inch
RAM BUS	PCI-E Gen 4.0 (4x) vs PCI-E Gen 3.0 (4x)	Faster RAM
Dolby Atmos Speakers	Yes vs No	3D Surround Sound Support
Bluetooth	v5.2 vs v5.1	More advanced Bluetooth connectivity
Fingerprint Sensor	Yes vs No	Easy login with fingerprint
USB-C Port Type	v4.0 vs v3.2	Faster USB-C connection

Reasons to choose Lenovo Legion 5 17-inch 2021 AMD over Samsung Galaxy Book 4

Display Size	17.3 inches vs 15.6 inches	Larger Screen Estate
CPU Fabrication Process	7 nm vs 10 nm	Newer Generation CPU
GPU Fabrication Process	8 nm vs 10 nm	Newer Generation GPU
GPU FLOPS	7.12 TFLOPS vs 1.41 TFLOPS	Dedicated GPU unit
GPU Type	Dedicated vs Integrated	More RAM Options
Upgradable RAM	Yes vs No	Connect more device at the same time
Number of USB-A Ports	4x USB 3.2 vs 2x USB 3.2	Better HDMI connectivity
HDMI Version	2.1 vs 1.4

Common Strengths of Lenovo Legion 5 17-inch 2021 AMD and Samsung Galaxy Book 4

Screen Coating	Matte vs Matte	Less reflections on the screen
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	LPDDR4X vs DDR4	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
Bluetooth Standard	v5.2 vs v5.1	Fast and Reliable Bluetooth 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
Ethernet RJ45 Port	Yes vs Yes	Fast connection to Network via ethernet cable
Built-in SD Card Reader	Yes vs Yes	Read & Write SD Cards
Numeric Pad	Yes vs Yes	Fast way to input numbers
Keyboard Backlight	Yes vs Yes	Easily see the keys under low light

Common Weaknesses of Lenovo Legion 5 17-inch 2021 AMD and Samsung Galaxy Book 4

Touchscreen Capability	No vs No	No Touchscreen Capability

Samsung Galaxy Book 4 vs Lenovo Legion 5 17-inch 2021 AMD: Physical Specs Comparison

In this section, we will be comparing the physical specifications and body features of the Samsung Galaxy Book 4 and the Lenovo Legion 5 17-inch 2021 AMD.

Physical Specs
Weight	1.55 kg (3.42 lbs)	2.98 kg (6.57 lbs)
Surface Area	817 cm2 (126.6 inches2)	1156 cm2 (179.2 inches2)
Screen to Surface Ratio	~82.1%	~71.4%
Side Bezel Thickness	~5.6 mm	~7.8 mm
Weight per Inch of Screen	0.10 kg/inch	0.17 kg/inch
	0.22 lbs/inch	0.374 lbs/inch
Colors	Silver, Gray	Black, Blue

Comparison of the Samsung Galaxy Book 4 and the Lenovo Legion 5 17-inch 2021 AMD External Dimensions

Weight

Galaxy Book 4 weighs 1.55 kg (3.42 lbs), whereas the Legion 5 17-inch 2021 AMD weighs 2.98 kg (6.57 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

Samsung Galaxy Book 4

Avg: 15.0-15.9"

Lenovo Legion 5 17-inch 2021 AMD

Avg: larger than 17.0"

Thickness Comparison

Samsung Galaxy Book 4

Avg: 15.0-15.9"

Lenovo Legion 5 17-inch 2021 AMD

Avg: larger than 17.0"

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 Samsung Galaxy Book 4 is 0.10 kg/inch.In comparison, this value for the Lenovo Legion 5 17-inch 2021 AMD is 0.17 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

Samsung Galaxy Book 4 vs Lenovo Legion 5 17-inch 2021 AMD: Internals Comparison

CPU Comparison

CPU Model	Intel Core 5 120U Intel Core 7 150U	AMD Ryzen 5 5600H AMD Ryzen 7 5800H
Base Frequency	1.4 GHz	3.3 GHz
Turbo Frequency	5 GHz	4.2 GHz
Number of Cores	10 (2P + 8E)	6
Number of Threads	12	12
L3 Cache	12 MB	16 MB
Integrated GPU	Intel Iris Xe Graphics (80EU)	Radeon RX Vega 7
CPU Fabrication Process	10 nm	7 nm
Cinebench 23 (Single)	1867	1371
Cinebench 23 (Multi)	9010	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 Samsung Galaxy Book 4 and Lenovo Legion 5 17-inch 2021 AMD.

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

Laptops with: Intel Core 5 120U

Laptops with: AMD Ryzen 5 5600H

GPU Comparison

GPU Model	Intel Iris Xe Graphics (80EU)	GeForce RTX 3050 Mobile 4GB GeForce RTX 3060 Mobile 6GB GeForce RTX 3070 Mobile 8GB
Base Clock Frequency	300 MHz	1530 MHz
Boost CLock Frequency	1100 MHz	1343 MHz
TGP (Total Graphics Power)	15 W	95 W
Type	Integrated	Dedicated
FLOPS	1.41 TFLOPS	7.12 TFLOPS
Memory Size	System Shared	4 GB
Memory Type	LPDDR4X	GDDR6
Memory Bus	System Shared	128 bit
Memory Speed	4.27 Gbps	12 Gbps
Shading Units Cores	640	2048
TMUs	40	64
ROPs	20	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. Samsung Galaxy Book 4 has a FLOPS value of 1.41 TFLOPS whereas the Lenovo Legion 5 17-inch 2021 AMD ' has a FLOPS value of 7.12 TFLOPS. If graphical performance of the laptop is important for your use type, the Lenovo Legion 5 17-inch 2021 AMD may be the better choice between these two setups.

RAM Comparison

RAM	8GB 16GB	8GB 16GB
Memory Bus	2x4 GB	1x8 GB
RAM Clock	4266 MHz	3200 MHz
RAM Type	LPDDR4X	DDR4
Upgradable	No	Yes

Both laptops, the Galaxy Book 4 and the Legion 5 17-inch 2021 AMD, 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	Samsung Galaxy Book 4	Lenovo Legion 5 17” (2021, AMD)
CPU	Intel Core 5 120U	AMD Ryzen 5 5600H
GPU	Intel Iris Xe Graphics (80EU)	GeForce RTX 3050 Mobile 4GB
Memory	8 GB	8 GB ; 4 GB VRAM
Available for LLM total	~3.5 GB (3.5 GB RAM)	~8 GB (2.5 GB VRAM 5.5 GB RAM)
Small Models (1-3B): Examples: Phi-2, Qwen-1.8B Requires ~2 GB memory	✔ Modest Speed fits in your 3.5 GB RAM	✔ Runs Well fits in your 4 GB VRAM
Medium Models (7-8B): Examples: Mistral-7B, Qwen-7B Requires ~5 GB memory	✖ Not Supported exceeds available RAM	! Not Practical doesn't fit in 4 GB VRAM, spills to RAM (VRAM + RAM, slower)
Large Models
13-15B Models (e.g., Llama 3 14B, Qwen1.5 14B) Requires ~9 GB memory	✖ Not Supported exceeds available RAM	✖ Not Supported exceeds available RAM
16-24B Models (e.g., Dense 20B Q4 ~15.5GB) Requires ~14 GB memory	✖ Not Supported exceeds available RAM	✖ Not Supported exceeds available RAM
24-30B Models (e.g., Dense 30B Q4) Requires ~18 GB memory	✖ Not Supported exceeds available RAM	✖ Not Supported exceeds available RAM
MoE Models (Mixture-of-Experts) (e.g., Mixtral 8x7B - total ~47B, active ~12-13B) Requires ~24 GB memory	✖ Not Supported exceeds available RAM	✖ Not Supported exceeds available RAM
Extra-Large Models (65B+): Examples: LLaMA2-70B, Qwen1.5-72B Requires ~42 GB memory	✖ Not Supported exceeds available RAM	✖ Not Supported exceeds available RAM

For more detailed LLM evaluation (subcategories, performance ranges, memory breakdown)

Samsung Galaxy Book 4|Lenovo Legion 5 17” (2021, AMD)

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

📌 Model Types: Dense 30B Q4 models typically require around 19–22 GB of total VRAM, so they run best on systems with ≥24 GB VRAM. MoE models like Mixtral 8x7B (≈47B total parameters, usually ≈23–26 GB in 4-bit) also need high memory because all experts must be loaded, even though only a few are active per token. They reduce compute cost per token (similar to a ~12–13B dense model), but not memory usage, so they are not practical on 14–16 GB systems.

🚀 Modern NPU (Neural Processing Unit): Modern processors like AMD Ryzen AI and Intel Core Ultra feature NPU and unified memory architecture. NPUs provide modest performance gains (0-30% faster) with better power efficiency compared to iGPU-only execution. Real-world tests show ~3-10 tok/s range on 13B models with 32GB RAM (varies by runtime, quantization, and context), comparable to iGPU but more power-efficient. Note: These figures are examples from various NPU systems; actual performance depends on your specific hardware configuration.

Understanding Performance Categories

The performance descriptions use general categories because actual speed varies greatly based on your specific hardware, model optimization, context length, and runtime software.

Performance Level	Typical Range	User Experience
Runs Smoothly (High-end dGPU)	50+ tok/s	Real-time response. Feels instant, like ChatGPT.
Runs Well (Mid-range dGPU)	20-50 tok/s	Good interactive performance. Slight delay, but usable.
Modest Speed (iGPU/NPU/CPU)	5-20 tok/s	Usable for tasks that don't need instant responses. Noticeable typing delay.
Borderline / Slow (Limited hardware)	2-5 tok/s	Slow-Very slow. Patience required. Better for batch processing.
Not Practical	<2 tok/s	Too slow for regular use. May cause system hangs or instability.

💡 Tip: Your actual results may be higher or lower than these ranges. Test with your specific hardware to know for sure!

⚠️ Note: Performance categorization is based on VRAM capacity and RAM fallback status. GPU type (memory bandwidth, compute power) can also affect actual performance. Currently, we prioritize whether the model fits in VRAM or requires RAM fallback for classification. We may refine this categorization in future updates based on more detailed benchmarks.

BATTERY

BATTERY	54 Wh	80 Wh
Battery Type	Li-Po	Li-Po
Replaceable	No	No
Fast Charging	No	Yes
USB Power Delivery	Yes	Yes
Charging Port Position	Left	Bottom
Charge Power	45 W	230 / 300 W

On the other hand, the Legion 5 17-inch 2021 AMD features a higher battery capacity of 80 Wh, delivering longer usage time compared to the Galaxy Book 4's 54 Wh.

Battery Comparison

Samsung Galaxy Book 4

Avg: 15.0-15.9"

Lenovo Legion 5 17-inch 2021 AMD

Avg: larger than 17.0"

STORAGE
With a larger storage capacity up to 2 TB, the Galaxy Book 4 provides more space for storing files and applications compared to the Legion 5 17-inch 2021 AMD's max. storage capacity of 1 TB.

Storage Options	512 GB, 1 TB, 2 TB	256 GB, 512 GB, 1 TB
Upgradable	Yes	Yes
Total Slots	2	2
Storage type	SSD (M2)	SSD (M2)
NVMe	Yes	Yes
Memory Bus	PCI-E Gen 4.0 (4x)	PCI-E Gen 3.0 (4x)

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.

Samsung Galaxy Book 4 vs Lenovo Legion 5 17-inch 2021 AMD: Display Comparison

The display is an essential aspect to consider when comparing the Samsung Galaxy Book 4 and Lenovo Legion 5 17-inch 2021 AMD 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. Galaxy Book 4 has a display size of 15.6".On the other hand, Legion 5 17-inch 2021 AMD has a larger17.3" display.The total usable screen area of the Galaxy Book 4 is 670cm² / 104inch² whereas the Legion 5 17-inch 2021 AMD's total usable screen area is 825cm² / 128inch².

PPI (Pixels per Inch)
Additionally, the Galaxy Book 4 features a higher pixel density with 141 pixels per inch (PPI), ensuring sharper image details.

Screen PPI (Pixels Per Inch) Comparison

Samsung Galaxy Book 4

Avg: 15.0-15.9"

Lenovo Legion 5 17-inch 2021 AMD

Avg: larger than 17.0"

Refresh Rate
Both Galaxy Book 4 and Legion 5 17-inch 2021 AMD offer the same refresh rate of 60 Hz.

Brightness
Both Galaxy Book 4 and Legion 5 17-inch 2021 AMD offer the same maximum brightness of 300 nits (cd/m²).

Brightness Comparison

Samsung Galaxy Book 4

Avg: 15.0-15.9"

Lenovo Legion 5 17-inch 2021 AMD

Avg: larger than 17.0"

Samsung Galaxy Book 4 vs Lenovo Legion 5 17-inch 2021 AMD 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 Galaxy Book 4 and Legion 5 17-inch 2021 AMD have USB-A ports. Galaxy Book 4 has 2x USB 3.2 USB-A ports, while Legion 5 17-inch 2021 AMD has 4x USB 3.2 USB-A ports.
Both Galaxy Book 4 and Legion 5 17-inch 2021 AMD have USB Type-C ports. Galaxy Book 4 has 2x USB 4.0 USB Type-C ports, while Legion 5 17-inch 2021 AMD has 2x 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
Neither Galaxy Book 4 nor Legion 5 17-inch 2021 AMD has Thunderbolt port.

HDMI
Both Galaxy Book 4 and Legion 5 17-inch 2021 AMD feature an HDMI port. Galaxy Book 4 offers 1x HDMI 1.4, while Legion 5 17-inch 2021 AMD offers 1x HDMI 2.1.

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 Galaxy Book 4 and Legion 5 17-inch 2021 AMD come with an SD Card Reader for easy access to memory cards.

Audio Jack
Both Galaxy Book 4 and Legion 5 17-inch 2021 AMD 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: v6.2)	v5.2	v5.1
USB-A (latest: 3.2)	2x USB 3.2	4x USB 3.2
USB Type-C (latest: USB4 2.0)	2x USB 4.0	2x USB 3.2
Thunderbolt (latest: 5)	No	No
HDMI (latest: 2.1)	1x HDMI 1.4	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	Yes	Yes
SD CardReader	Yes	Yes
Proprietary Charging Port	No	Yes