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- Table of Contents
- Top
- Main Differences
- Design
- Display
- Interface
- Connectivity
- Configuration
- Performance
- Additional Features And Software
- Comments
Lenovo IdeaPad Slim 3i 15 (2023) vs Lenovo IdeaPad 3 15 (2021)
Side-by-Side Comparison
Products
Lenovo IdeaPad Slim 3i 15 (2023)
Lenovo IdeaPad 3 15 (2021)
Tested using Methodology v0.8.3
Updated May 02, 2025 02:47 PM
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Size15.6"
Operating SystemWindows 11
Size15.6"
Operating SystemWindows 11
Variants
- IdeaPad Slim 3i 15 (82X70005US) (Abyss Blue - IPS/Non Touch/i3-1315U/8GB/256GB)
- IdeaPad Slim 3i 15 (82X7001VUS) (Abyss Blue - IPS/Touch/i3-1315U/8GB/256GB)
- IdeaPad Slim 3i 15 (82X7000CUS) (Abyss Blue - IPS/Touch/i3-1315U/8GB/512GB)
- IdeaPad Slim 3i 15 (82X7000BCF) (Arctic Gray - IPS/Non Touch/i5-1335U/16GB/512GB)
- IdeaPad Slim 3i 15 (82X7001ECF) (Arctic Gray - IPS/Non Touch/i7-1355U/16GB/512GB)
- IdeaPad Slim 3i 15 (82X7001WUS) (Arctic Gray - IPS/Touch/i5-1335U/8GB/256GB)
- IdeaPad Slim 3i 15 (82X7002LIX) (Arctic Gray - IPS/Touch/i7-1355U/16GB/512GB)
- Ideapad 3 15 (82KU00C1US) (Abyss Blue - IPS/Ryzen 5 5500U/12GB/512GB)
- Ideapad 3 15 (82KU00YTUS) (Abyss Blue - IPS/Ryzen 5 5500U/8GB/256GB)
- Ideapad 3 15 (82KU003NUS) (Abyss Blue - TN/Ryzen 5 5500U/8GB/256GB)
- Ideapad 3 15 (82KU00AAUS) (Arctic Gray - TN/Ryzen 5 5500/8GB/256GB)
- Ideapad 3 15 (82KU000NUS) (Sand - IPS/Ryzen 3 5300U/4GB/512GB)
- Ideapad 3 15 (82KU00YQUS) (Sand - IPS/Ryzen 3 5300U/8GB/512GB)
Our Verdict
Lenovo IdeaPad Slim 3i 15 (2023)
Lenovo IdeaPad 3 15 (2021)
The Lenovo IdeaPad Slim 3i 15 (2023) and the Lenovo IdeaPad 3 15 (2021) are very similar overall. The Slim 3i has a better keyboard and a more responsive touchpad, and its USB-C supports video output and charging. Also, the IdeaPad Slim 3i is available with newer and faster Intel 13th Gen. CPUs. However, the IdeaPad 3 15's screen gets slightly brighter to combat glare, and its battery lasts longer.
Main Differences forSchool
School
Threshold
School
7.3
7.4
Battery
6.3
7.7
Full Comparison
Design
Style
Style Photo
Form Factor
Traditional (Clamshell)
Traditional (Clamshell)
Build Quality
7.5
7.5
Build Quality Photo
Hinge
6.9
5.7
Hinge Photo
Range
175°
165°
Stability
Good
Decent
One Finger Lift
No
No
Portability
8.0
8.0
Dimensions Photo
Size
15.6"
15.6"
Thickness
0.9" (2.3 cm)
0.7" (1.9 cm)
Width
14.2" (36.0 cm)
14.1" (35.9 cm)
Depth
9.3" (23.5 cm)
9.3" (23.6 cm)
Volume
116.2 in³ (1,903.5 cm³)
98.2 in³ (1,609.8 cm³)
Weight
3.6 lbs (1.6 kg)
3.6 lbs (1.7 kg)
Charger Size
8.7 in³ (141.8 cm³)
10.3 in³ (168.8 cm³)
Charger Weight
0.7 lbs (0.3 kg)
0.9 lbs (0.4 kg)
Serviceability
7.0
7.5
Internals Photo
Ease Of Access
9.0
7.5
RAM Slots
0
1
Storage Slots
1
1
Replaceable Battery
Yes
Yes
Replaceable Wireless Adapter
Yes
Yes
In The Box
In The Box Photo
Display
Screen Specs
Display Photo
Resolution
1920 x 1080
1920 x 1080
Aspect Ratio
16:9
16:9
Pixel Density
141 PPI
142 PPI
Panel Type
IPS
IPS
Touch Screen
Yes
Yes
Screen-To-Body Ratio
85%
85%
Refresh Rate
5.9
5.9
Motion Blur
Refresh Rate
60 Hz
60 Hz
Variable Refresh Rate
No
No
Contrast
7.1
7.3
Contrast Photo
Native Contrast
1,183 : 1
1,325 : 1
Brightness
6.8
7.1
Maximum Brightness
281 cd/m²
308 cd/m²
Minimum Brightness
1 cd/m²
3 cd/m²
Reflections
8.7
7.2
Reflections Photo Off
Reflections Photo Max
Screen Finish
Matte
Matte
Total Reflections
2.85%
5.14%
Indirect Reflections
2.64%
2.87%
Calculated Direct Reflections
0.21%
2.27%
Black Uniformity
6.0
6.7
Black Uniformity Photo
Uniformity (Std. Dev.)
1.987%
1.489%
Horizontal Viewing Angle
6.6
Horizontal Viewing Angle Video
Horizontal Chroma Picture
Color Washout From Left
23°
Color Washout From Right
26°
Horizontal Hue Picture
Color Shift From Left
44°
Color Shift From Right
48°
Horizontal Lightness Picture
Brightness Loss From Left
25°
Brightness Loss From Right
30°
Black Level Raise From Left
60°
Black Level Raise From Right
60°
Gamma Shift From Left
24°
Gamma Shift From Right
29°
Vertical Viewing Angle
6.8
Vertical Viewing Angle Video
Vertical Chroma Picture
Color Washout From Below
25°
Color Washout From Above
28°
Vertical Hue Picture
Color Shift From Below
25°
Color Shift From Above
45°
Vertical Lightness Picture
Brightness Loss From Below
25°
Brightness Loss From Above
30°
Black Level Raise From Below
45°
Black Level Raise From Above
45°
Gamma Shift From Below
30°
Gamma Shift From Above
33°
Out-Of-The-Box Color Accuracy
7.2
7.0
White Balance Screencap
Gamma Curve Screencap
Color Screencap
Avg. White Balance dE
1.64
1.9
Avg. Gamma
2.14
2.15
Avg. Color dE
5
5.09
Avg. Color Temperature
6,722.8 K
6,399.6 K
Color Gamut
3.9
3.9
Gamut SDR
sRGB xy
63.79%
63.69%
sRGB uv
52.26%
51.87%
Adobe RGB xy
48.2%
43.39%
Adobe RGB uv
45.09%
44.88%
Gamut HDR
DCI P3 xy
47.94%
48.12%
DCI P3 uv
41.9%
41.7%
Rec. 2020 xy
34.39%
34.52%
Rec. 2020 uv
30.53%
30.38%
Flicker
10
10
Flicker Graph
Flicker-Free
Yes
Yes
Flicker Frequency
No Flicker
No Flicker
Flicker Active Below
0%
0%
Interface
Keyboard
7.5
7.4
Keyboard Photo
Typing Quality
7.5
7.0
Numpad
Yes
Yes
Backlighting
On / Off
Adjustable
Key Switch Actuation Graph
Operating Force
64 gf
72 gf
Actuation Force
39 gf
32 gf
Pre-Travel
1.05 mm
0.91 mm
Total Travel
1.35 mm
1.39 mm
Touchpad
7.2
6.5
Touchpad Photo
Tracking Quality
7.5
6.5
Size
11.5 in² (74.0 cm²)
11.2 in² (72.2 cm²)
Material
Plastic
Plastic
Dedicated Buttons
No
No
Speakers
5.5
7.4
Frequency Response Plot
Max Volume
78 dB SPL
73 dB SPL
Standard Error @ Normal Vol. (65 dB)
9.7 dB
5.4 dB
Slope @ Normal Vol. (65 dB)
-2.3
0.4
Bass Extension (Low-Frequency Ext.)
479 Hz
261 Hz
Treble Extension (High-Frequency Ext.)
20 kHz
20 kHz
Dynamic Range Compression @ Max Vol.
1.0 dB
1.2 dB
Webcam & Microphone
7.9
7.5
Webcam Video Sample
Video Quality
7.5
7.0
Resolution
720p
720p
Position
Top Center
Top Center
Privacy Cover
Yes
Yes
Face Unlock
No
No
Connectivity
Ports
7.5
7.0
Ports Photo
USB-A Ports
2
2
USB-C Ports
1
1
Thunderbolt
No
No
USB-C Charging
Yes
No
USB-C Display Out
Yes
No
HDMI
1.4
1.4
DisplayPort
No
No
3.5mm Jack
Combo mic/headphone
Combo mic/headphone
Card Reader
SD UHS 1
SD UHS 1
Ethernet
No
No
Proprietary Port
No
No
Security Lock
No
No
Wireless Communication
Wi-Fi
Wi-Fi 6 (802.11ax)
Wi-Fi 5 (802.11ac)
Bluetooth
5.2
5.0
Configuration
CPU
Brand
Intel
AMD
Model
Core i3-1315U
Ryzen 3 5300U
Core Count
6
4
Thread Count
8
8
GPU
Brand
Intel
AMD
Model
UHD Graphics 64 EU
Radeon RX Vega 6 (4000/5000)
Dedicated/Integrated
Integrated
Integrated
VRAM Size
N/A
N/A
GPU Total Graphics Power (TGP)
N/A
RAM
Capacity
8 GB
8 GB
Modules
4 (Soldered)
2
Type
LP-DDR5
DDR4
Speed
4,800 MHz
3,200 MHz
Storage
Advertised Capacity
512 GB
512 GB
Usable Capacity
453 GB
455 GB
Drive 1
Solidigm SSDPFINW512GZL
UMIS RPJTJ512MEE1OWX
Drive 1 Type
SSD
SSD
Drive 2
No 2nd Drive
No 2nd Drive
Drive 2 Type
No 2nd Drive
No 2nd Drive
Performance
Geekbench 5 (Synthetics)
7.9
6.9
Geekbench Image
CPU Single-Thread
1,543 points
1,070 points
CPU Multi-Thread
5,436 points
4,023 points
GPU Compute
11,648 points
10,857 points
Cinebench R23 (CPU Rendering)
8.7
7.9
Cinebench R23 Photo
Single-Thread
1,633 points
1,121 points
Multi-Thread
5,232 points
5,113 points
Blender (3D Rendering)
4.9
4.8
Blender Image
CPU Render Time
9.4 min
7.6 min
GPU Render Time
N/A
12.0 min
GPU Render Time (Optix)
N/A
N/A
Basemark GPU (Game Scene)
4.4
3.8
Basemark Image
Overall Score
11,869
9,054
Storage Drive Performance
9.2
8.9
Storage Performance Image
Sequential Write Speed
978.5 MB/s
686.2 MB/s
Sequential Read Speed
2,387.3 MB/s
1,825.4 MB/s
Random Write Speed
81.1 MB/s
68.1 MB/s
Random Read Speed
56.7 MB/s
45.7 MB/s
Battery
6.3
7.7
Capacity
46 Wh
45 Wh
Battery Life (Web Browsing)
6.6 hrs
9.3 hrs
Battery Life (Video Playback)
5.9 hrs
7.9 hrs
Battery Life (Gaming)
2.0 hrs
1.6 hrs
Charge Time
1.7 hrs
1.9 hrs
Borderlands 3
1.2
1.6
Borderlands 3 Graph
Avg. FPS
8 fps
10 fps
1% Low
2 fps
6 fps
0.1% Low
0 fps
3 fps
1% Low Delta
537 ms
69 ms
0.1% Low Delta
1,914 ms
206 ms
Avg. FPS On Very Low
18 fps
25 fps
Civilization VI
3.5
3.9
Civilization VI Graph
Avg. FPS
15 fps
19 fps
1% Low
11 fps
13 fps
0.1% Low
10 fps
12 fps
1% Low Delta
26 ms
26 ms
0.1% Low Delta
29 ms
29 ms
Avg. FPS On Minimum
59 fps
78 fps
Avg. Turn Time
8.25 s
8.37 s
Counter-Strike: Global Offensive
5.7
CS:GO graph
Avg. FPS
53 fps
1% Low
27 fps
0.1% Low
22 fps
1% Low Delta
18 ms
0.1% Low Delta
26 ms
Avg. FPS On Low
101 fps
Counter-Strike 2
CS2 Graph
Avg. FPS
1% Low
0.1% Low
1% Low Delta
0.1% Low Delta
Avg. FPS On Low
Shadow Of The Tomb Raider
1.8
2.2
Avg. FPS
11 fps
14 fps
1% Low
2 fps
4 fps
0.1% Low
1 fps
2 fps
1% Low Delta
499 ms
165 ms
0.1% Low Delta
1,573 ms
549 ms
Avg. FPS On Lowest
19 fps
23 fps
Thermals And Noise
7.9
7.8
Keyboard Temps Picture
Keyboard Temp While Idle
33 °C (91 °F)
28 °C (83 °F)
Keyboard Temp Under Load
39 °C (102 °F)
38 °C (100 °F)
Fan Noise While Idle
25.0 dBA
25.0 dBA
Fan Noise Under Load
45.0 dBA
48.5 dBA
Power & Fan Control App
No
No
Performance Over Time
9.7
9.8
Performance Over Time Graph
CPU Temp (Cinebench)
61 °C
67 °C
CPU Perf. Loss (Cinebench)
2% loss
2% loss
GPU Temp (Heaven)
53 °C
53 °C
GPU Perf. Loss (Heaven)
0% loss
0% loss
Additional Features And Software
Software
Operating System
Windows 11
Windows 11
Additional Software
Yes
Yes
Extra Features
Biometrics
Fingerprint Sensor
Fingerprint Sensor
RGB Illumination
No
No
Touch Pen Support
No Stylus Support
Secondary Display
No
No
Touch Pen
No
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Lenovo IdeaPad Slim 3i 15 (2023)
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Comments
Lenovo IdeaPad Slim 3i 15 (2023) vs Lenovo IdeaPad 3 15 (2021): Main Discussion
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