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Lenovo Legion Y520-15IKBN (7300HQ, GTX 1050 Ti, FHD) Laptop Review

A well-rounded gamer. Lenovo's entry-level gamer brings all the current games to the matte Full HD display. The computer is equipped with a Kaby Lake quad-core processor, a GeForce GTX 1050 Ti GPU, and a very fast NVMe SSD.

For the original German review, see here.

A few months ago, we tested a Core-i7 model of the Legion Y520, and now we are having the Core-i5 variant in front of us. Both devices have a GeForce GTX 1050 Ti graphics core on board. The competitors include notebooks such as the Acer Nitro 5 AN515-51, the HP Omen 15-ax213ng, the Dell Inspiron 15 7567, the Asus FX502VM, and the Acer Aspire VX5-591G.

Since the build of the two Legion-Y520 models is identical, we will not discuss the case, features, input devices, display, and speakers again. You can find that information in the Legion Y520-15IKBN 80WK001KUS Review

Lenovo Legion Y520-15IKBN 80WK0042GE (Legion Y520 Series)
Processor
Intel Core i5-7300HQ 4 x 2.5 - 3.5 GHz, Kaby Lake
Graphics adapter
NVIDIA GeForce GTX 1050 Ti Mobile - 4 GB VRAM, Core: 1772 MHz, Memory: 1752 MHz, GDDR5, 128-Bit connection, ForceWare 385.69, Optimus
Memory
8 GB 
, DDR4-2400, single channel, two memory banks (one bank occupied)
Display
15.60 inch 16:9, 1920 x 1080 pixel 141 PPI, LG Philips LP156WF6-SPK3, IPS, glossy: no
Mainboard
Intel HM175
Storage
Samsung PM961 NVMe MZVLW128HEGR, 128 GB 
, + Seagate ST1000LM035 (1 TB, 5400 rpm), 1021 GB free
Soundcard
Realtek ALC235 @ Intel Sunrise Point-LP PCH - High Definition Audio Controller
Connections
1 USB 2.0, 3 USB 3.0 / 3.1 Gen1, 1 HDMI, 1 Kensington Lock, Audio Connections: Audio combo, Card Reader: SD, TPM 2.0
Networking
Realtek RTL8168/8111 Gigabit-LAN (10/100/1000MBit/s), Realtek 8821AE Wireless LAN 802.11ac PCI-E NIC (ac = Wi-Fi 5/), Bluetooth 4.1
Size
height x width x depth (in mm): 25.8 x 380 x 265 ( = 1.02 x 14.96 x 10.43 in)
Battery
45 Wh Lithium-Ion
Operating System
Microsoft Windows 10 Home 64 Bit
Camera
Webcam: HD
Additional features
Speakers: Stereo, Keyboard: Chiclet, Keyboard Light: yes, McAfee LiveSafe (trial version), MS Office 365 (trial version), 12 Months Warranty
Weight
2.4 kg ( = 84.66 oz / 5.29 pounds), Power Supply: 540 g ( = 19.05 oz / 1.19 pounds)
Price
1200 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Size Comparison

389 mm / 15.3 inch 266 mm / 10.5 inch 29 mm / 1.142 inch 2.5 kg5.51 lbs390 mm / 15.4 inch 266 mm / 10.5 inch 26.75 mm / 1.053 inch 2.7 kg5.95 lbs390 mm / 15.4 inch 266 mm / 10.5 inch 23 mm / 0.906 inch 2.6 kg5.67 lbs385 mm / 15.2 inch 275 mm / 10.8 inch 27 mm / 1.063 inch 2.8 kg6.06 lbs380 mm / 15 inch 265 mm / 10.4 inch 28.8 mm / 1.134 inch 2.6 kg5.63 lbs382 mm / 15 inch 253 mm / 9.96 inch 24.5 mm / 0.965 inch 2.3 kg4.97 lbs380 mm / 15 inch 265 mm / 10.4 inch 25.8 mm / 1.016 inch 2.4 kg5.29 lbs297 mm / 11.7 inch 210 mm / 8.27 inch 1 mm / 0.03937 inch 5.7 g0.01257 lbs
Networking
iperf3 transmit AX12
Medion Erazer X6603
Intel Dual Band Wireless-AC 8265
664 MBit/s +92%
Acer Aspire VX5-591G-75C4 VX15
Intel Dual Band Wireless-AC 7265
653 MBit/s +89%
Acer Nitro 5 AN515-51-788E
Qualcomm QCA6174
600 MBit/s +74%
HP Omen 15-ax213ng
Intel Dual Band Wireless-AC 7265
533 MBit/s +54%
Asus FX502VM-AS73
Intel Dual Band Wireless-AC 8260
513 MBit/s +49%
Lenovo Legion Y520-15IKBN 80WK0042GE
Realtek 8821AE Wireless LAN 802.11ac PCI-E NIC
345 MBit/s
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Intel Dual Band Wireless-AC 3165
314 MBit/s -9%
Lenovo Legion Y520-15IKBN-80WK001KUS
Realtek 8821AE Wireless LAN 802.11ac PCI-E NIC
282 MBit/s -18%
iperf3 receive AX12
HP Omen 15-ax213ng
Intel Dual Band Wireless-AC 7265
686 MBit/s +141%
Acer Nitro 5 AN515-51-788E
Qualcomm QCA6174
603 MBit/s +112%
Asus FX502VM-AS73
Intel Dual Band Wireless-AC 8260
541 MBit/s +90%
Acer Aspire VX5-591G-75C4 VX15
Intel Dual Band Wireless-AC 7265
533 MBit/s +87%
Medion Erazer X6603
Intel Dual Band Wireless-AC 8265
517 MBit/s +81%
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Intel Dual Band Wireless-AC 3165
326 MBit/s +14%
Lenovo Legion Y520-15IKBN-80WK001KUS
Realtek 8821AE Wireless LAN 802.11ac PCI-E NIC
307 MBit/s +8%
Lenovo Legion Y520-15IKBN 80WK0042GE
Realtek 8821AE Wireless LAN 802.11ac PCI-E NIC
285 MBit/s

Warranty

The Legion Y520 is available in many German online shops with a one-year warranty. But actually, the device has a two-year warranty, as the preinstalled Lenovo Companion app reports. Lenovo only gives a one-year warranty on the battery. Please see our Guarantees, Return Policies & Warranties FAQ for country-specific information.

Warranty
Warranty

Display

Pixel grid
Pixel grid

Lenovo uses the same matte IPS Full HD display as in the Legion-Y520 model we tested previously. The measurements are slightly different, which is normal though, since two identically built panels are never 100% identical. The brightness (281.3 cd/m2) and contrast (726:1) are decent, but could have been higher considering the price of the computer.

Unfortunately, the display shows PWM flickering at a frequency of 21,000 Hz in brightness settings of 90% and below. However, thanks to the high frequency, even very sensitive people should not develop any eye problems or headaches from this. 

266
cd/m²
280
cd/m²
278
cd/m²
276
cd/m²
283
cd/m²
289
cd/m²
286
cd/m²
283
cd/m²
291
cd/m²
Distribution of brightness
LG Philips LP156WF6-SPK3 tested with X-Rite i1Pro 2
Maximum: 291 cd/m² (Nits) Average: 281.3 cd/m² Minimum: 3 cd/m²
Brightness Distribution: 91 %
Center on Battery: 281 cd/m²
Contrast: 726:1 (Black: 0.39 cd/m²)
ΔE Color 6.1 | 0.5-29.43 Ø5
ΔE Greyscale 5.69 | 0.57-98 Ø5.3
58% sRGB (Argyll 1.6.3 3D)
37% AdobeRGB 1998 (Argyll 1.6.3 3D)
40.34% AdobeRGB 1998 (Argyll 2.2.0 3D)
58.4% sRGB (Argyll 2.2.0 3D)
39.01% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.44
Lenovo Legion Y520-15IKBN 80WK0042GE
IPS, 1920x1080, 15.60
Lenovo Legion Y520-15IKBN-80WK001KUS
IPS, 1920x1080, 15.60
HP Omen 15-ax213ng
IPS, 1920x1080, 15.60
Acer Aspire VX5-591G-75C4 VX15
IPS, 1920x1080, 15.60
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
TN, 1920x1080, 15.60
Asus FX502VM-AS73
TN LED, 1920x1080, 15.60
Acer Nitro 5 AN515-51-788E
IPS, 1920x1080, 15.60
Display
-1%
0%
-2%
-2%
7%
Display P3 Coverage
39.01
38.59
-1%
38.88
0%
38.2
-2%
38.28
-2%
41.7
7%
sRGB Coverage
58.4
58
-1%
58.2
0%
57.5
-2%
56.9
-3%
62.2
7%
AdobeRGB 1998 Coverage
40.34
39.87
-1%
40.2
0%
39.47
-2%
39.47
-2%
43.17
7%
Response Times
-24%
-3%
33%
6%
25%
17%
Response Time Grey 50% / Grey 80% *
39 ?(21, 18)
58.8 ?(33.6, 25.2)
-51%
42 ?(20.4, 21.6)
-8%
22 ?(10, 12)
44%
36.8 ?(17.2, 19.6)
6%
28.4 ?(11.2, 17.2)
27%
35 ?(16, 19)
10%
Response Time Black / White *
29 ?(16, 13)
36 ?(23.6, 12.4)
-24%
28 ?(16.4, 11.6)
3%
23 ?(13, 10)
21%
27.6 ?(24.4, 3.2)
5%
22.4 ?(6, 16.4)
23%
22 ?(12, 10)
24%
PWM Frequency
21000 ?(90)
21550 ?(99)
3%
Screen
-17%
17%
8%
-50%
-18%
11%
Brightness middle
283
239
-16%
230
-19%
281
-1%
242.2
-14%
209.5
-26%
276
-2%
Brightness
281
244
-13%
228
-19%
257
-9%
235
-16%
205
-27%
265
-6%
Brightness Distribution
91
88
-3%
88
-3%
85
-7%
88
-3%
92
1%
91
0%
Black Level *
0.39
0.35
10%
0.21
46%
0.32
18%
0.69
-77%
0.69
-77%
0.25
36%
Contrast
726
683
-6%
1095
51%
878
21%
351
-52%
304
-58%
1104
52%
Colorchecker dE 2000 *
6.1
7.3
-20%
4.01
34%
5.16
15%
11.6
-90%
4.7
23%
5.06
17%
Colorchecker dE 2000 max. *
11.08
24.7
-123%
7.26
34%
9.09
18%
19.4
-75%
19.7
-78%
10.13
9%
Greyscale dE 2000 *
5.69
4.9
14%
3.18
44%
4.57
20%
15.7
-176%
1.8
68%
6.25
-10%
Gamma
2.44 90%
2.19 100%
2.52 87%
2.59 85%
1.57 140%
2.23 99%
1.76 125%
CCT
6702 97%
7332 89%
6814 95%
6931 94%
11662 56%
6975 93%
6873 95%
Color Space (Percent of AdobeRGB 1998)
37
35
-5%
37
0%
37
0%
39.47
7%
36.2
-2%
40
8%
Color Space (Percent of sRGB)
58
55
-5%
58
0%
58
0%
57.55
-1%
56.6
-2%
62
7%
Total Average (Program / Settings)
-21% / -18%
4% / 11%
14% / 9%
-15% / -33%
2% / -9%
12% / 11%

* ... smaller is better

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM detected 21000 Hz ≤ 90 % brightness setting

The display backlight flickers at 21000 Hz (worst case, e.g., utilizing PWM) Flickering detected at a brightness setting of 90 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 21000 Hz is quite high, so most users sensitive to PWM should not notice any flickering.

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 17900 (minimum: 5 - maximum: 3846000) Hz was measured.

CalMAN - color checker
CalMAN - color checker
CalMAN - grayscales
CalMAN - grayscales
CalMAN - saturation
CalMAN - saturation

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
29 ms ... rise ↗ and fall ↘ combined↗ 16 ms rise
↘ 13 ms fall
The screen shows relatively slow response rates in our tests and may be too slow for gamers.
In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 74 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (21.5 ms).
       Response Time 50% Grey to 80% Grey
39 ms ... rise ↗ and fall ↘ combined↗ 21 ms rise
↘ 18 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.2 (minimum) to 636 (maximum) ms. » 53 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (33.7 ms).

Performance

With the Legion Y520-15IKBN, Lenovo has an entry-model into the world of gaming notebooks in its offerings. It brings all the current computer games to the screen smoothly. Our test unit can be purchased for about 1000 Euros (~$1190; ~$930 in the US). Options with different features are available. Prices begin at about 800 Euros (~$952).

CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
GPU-Z
GPU-Z
HWInfo
LatencyMon
 

Extreme Cooling

The Legion Y520 is equipped with a so-called Extreme-Cooling function, which means that the fans run constantly at full speed, even when idle. We were unable to detect any performance improvement with the Extreme-Cooling function activated - neither in the CPU, nor in the GPU.

Processor

The Legion Y520 is driven by a Core i5-7300HQ (Kaby Lake) quad-core processor. This is a standard mobile processor (not ULV) that has a TDP of 45 watts. In contrast to Core-i7 quad-core processors such as the 7700HQ, the 7300HQ does not support Intel's Hyperthreading (allowing running of two threads per core simultaneously). Thus, each core of the 7300HQ can only run a single thread.

The quad-core processor operates at a basic clock speed of 2.5 GHz. via Turbo, the speed can be increased to 3.1 GHz (four cores), 3.3 GHz (two cores), or 3.5 GHz (single core). The CPU runs at 3.1 GHz (multithread) and 3.1 to 3.3 GHz (single thread) in our CPU test, behaving identically in mains and battery operation.

Multi-thread
Multi-thread
Single-thread
Single-thread

We test whether the Turbo is used continuously, by letting the Cinebench R15 multithread test run for about 30 minutes in a continuous loop. The results of the Y520 remain on the same level consistently, and there is no performance drop.

0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520Tooltip
Cinebench R15 CPU Multi 64 Bit

The single thread performance of the CPU remains a tad behind its capabilities, since the processor cannot run in full Turbo. Activating the Extreme-Cooling function does not make any difference. We saw the same behavior in the Y520 model we already tested, but there the multithread performance of the 7700HQ remains behind its capabilities.

Cinebench R10 Shading 32Bit
6257
Cinebench R10 Rendering Multiple CPUs 32Bit
18158
Cinebench R10 Rendering Single 32Bit
5436
Cinebench R11.5 OpenGL 64Bit
53.7 fps
Cinebench R11.5 CPU Multi 64Bit
5.38 Points
Cinebench R11.5 CPU Single 64Bit
1.5 Points
Cinebench R15 Ref. Match 64Bit
99.6 %
Cinebench R15 OpenGL 64Bit
89 fps
Cinebench R15 CPU Multi 64Bit
517 Points
Cinebench R15 CPU Single 64Bit
143 Points
Help
Cinebench R15
CPU Single 64Bit
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
162 Points +13%
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ (CoolBoost on)
162 Points +13%
HP Omen 15-ax213ng
Intel Core i7-7700HQ
161 Points +13%
Lenovo Legion Y520-15IKBN-80WK001KUS
Intel Core i7-7700HQ
159 Points +11%
Acer Aspire VX5-591G-75C4 VX15
Intel Core i7-7700HQ
151 Points +6%
Medion Erazer X6603
Intel Core i7-7700HQ
151 Points +6%
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
148 Points +3%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
143 Points
Asus FX502VM-AS73
Intel Core i7-7700HQ
140 Points -2%
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Intel Core i5-7300HQ
129 Points -10%
CPU Multi 64Bit
HP Omen 15-ax213ng
Intel Core i7-7700HQ
736 Points +42%
Medion Erazer X6603
Intel Core i7-7700HQ
732 Points +42%
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ (CoolBoost on)
727 Points +41%
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
699 Points +35%
Asus FX502VM-AS73
Intel Core i7-7700HQ
725 Points +40%
Acer Aspire VX5-591G-75C4 VX15
Intel Core i7-7700HQ
719 Points +39%
Lenovo Legion Y520-15IKBN-80WK001KUS
Intel Core i7-7700HQ
652 Points +26%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
517 Points
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Intel Core i5-7300HQ
514 Points -1%
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
511 Points -1%
Cinebench R11.5
CPU Multi 64Bit
HP Omen 15-ax213ng
Intel Core i7-7700HQ
8.16 Points +52%
Medion Erazer X6603
Intel Core i7-7700HQ
8.13 Points +51%
Asus FX502VM-AS73
Intel Core i7-7700HQ
7.99 Points +49%
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
7.26 Points +35%
Lenovo Legion Y520-15IKBN-80WK001KUS
Intel Core i7-7700HQ
7.12 Points +32%
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Intel Core i5-7300HQ
5.56 Points +3%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
5.38 Points
CPU Single 64Bit
HP Omen 15-ax213ng
Intel Core i7-7700HQ
1.82 Points +21%
Lenovo Legion Y520-15IKBN-80WK001KUS
Intel Core i7-7700HQ
1.72 Points +15%
Medion Erazer X6603
Intel Core i7-7700HQ
1.72 Points +15%
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
1.71 Points +14%
Asus FX502VM-AS73
Intel Core i7-7700HQ
1.67 Points +11%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
1.5 Points
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Intel Core i5-7300HQ
1.49 Points -1%
Cinebench R10
Rendering Multiple CPUs 32Bit
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
22209 Points +22%
Medion Erazer X6603
Intel Core i7-7700HQ
21939 Points +21%
Asus FX502VM-AS73
Intel Core i7-7700HQ
21376 Points +18%
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
18304 Points +1%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
18158 Points
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Intel Core i5-7300HQ
17197 Points -5%
Rendering Single 32Bit
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
5908 Points +9%
Medion Erazer X6603
Intel Core i7-7700HQ
5823 Points +7%
Asus FX502VM-AS73
Intel Core i7-7700HQ
5660 Points +4%
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
5502 Points +1%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
5436 Points
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Intel Core i5-7300HQ
5006 Points -8%
Geekbench 3
32 Bit Multi-Core Score
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
13991 Points +42%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
9840 Points
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
9752 Points -1%
32 Bit Single-Core Score
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
3585 Points +13%
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
3195 Points +1%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
3163 Points
Geekbench 4.0
64 Bit Multi-Core Score
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
14084 Points +33%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
10551 Points
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
8085 Points -23%
64 Bit Single-Core Score
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
4482 Points +11%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
4022 Points
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
3387 Points -16%
Geekbench 4.4
64 Bit Multi-Core Score
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
14975 Points +35%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
11075 Points
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
8081 Points -27%
64 Bit Single-Core Score
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ
4540 Points +12%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ
4040 Points
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ
3387 Points -16%
JetStream 1.1 - Total Score
Medion Erazer X6603
Intel Core i7-7700HQ (Edge 38.14393.1066.0)
269.9 Points +10%
HP Omen 15-ax213ng
Intel Core i7-7700HQ (Edge 40.15063.0.0)
266.9 Points +9%
Lenovo Legion Y520-15IKBN-80WK001KUS
Intel Core i7-7700HQ
266.3 Points +8%
Acer Nitro 5 AN515-51-788E
Intel Core i7-7700HQ (Edge 40)
261.2 Points +6%
Acer Aspire VX15 VX5-591G-589S
Intel Core i5-7300HQ (Edge 38)
247.5 Points +1%
Lenovo Legion Y520-15IKBN 80WK0042GE
Intel Core i5-7300HQ (Edge 40)
245.5 Points
Asus FX502VM-AS73
Intel Core i7-7700HQ (Edge 38.14393.0.0)
218.5 Points -11%

System Performance

A look at the excellent results in the PC Mark benchmarks tells us that the computer has more than enough computing power for all the usual application areas. Besides gaming, this also includes image and video processing. There is nothing to complain in the subjective operating speeds. The computer runs fast and smoothly. The overall performance could still be increased slightly by inserting a second working memory module (= active dual-channel mode).

PCMark 7 Score
5555 points
PCMark 8 Home Score Accelerated v2
3651 points
PCMark 8 Creative Score Accelerated v2
4608 points
PCMark 8 Work Score Accelerated v2
4746 points
PCMark 10 Score
3995 points
Help
PCMark 8
Home Score Accelerated v2
Asus FX502VM-AS73
GeForce GTX 1060 Mobile, i7-7700HQ, SK Hynix HFS256G39TND-N210A
4765 Points +31%
Acer Nitro 5 AN515-51-788E
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Intel SSD 600p SSDPEKKW256G7
4177 Points +14%
HP Omen 15-ax213ng
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Samsung PM961 MZVLW256HEHP
4165 Points +14%
Medion Erazer X6603
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Samsung PM961 MZVLW256HEHP
4119 Points +13%
Acer Aspire VX15 VX5-591G-589S
GeForce GTX 1050 Mobile, i5-7300HQ, Hynix HFS128G39TND
3661 Points 0%
Lenovo Legion Y520-15IKBN 80WK0042GE
GeForce GTX 1050 Ti Mobile, i5-7300HQ, Samsung PM961 NVMe MZVLW128HEGR
3651 Points
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
GeForce GTX 1050 Mobile, i5-7300HQ, Toshiba MQ02ABD100H
3638 Points 0%
Acer Aspire VX5-591G-75C4 VX15
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Toshiba MQ01ABD100
3565 Points -2%
Work Score Accelerated v2
Medion Erazer X6603
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Samsung PM961 MZVLW256HEHP
5129 Points +8%
Acer Nitro 5 AN515-51-788E
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Intel SSD 600p SSDPEKKW256G7
5096 Points +7%
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
GeForce GTX 1050 Mobile, i5-7300HQ, Toshiba MQ02ABD100H
4749 Points 0%
Lenovo Legion Y520-15IKBN 80WK0042GE
GeForce GTX 1050 Ti Mobile, i5-7300HQ, Samsung PM961 NVMe MZVLW128HEGR
4746 Points
Acer Aspire VX5-591G-75C4 VX15
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Toshiba MQ01ABD100
4442 Points -6%
HP Omen 15-ax213ng
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Samsung PM961 MZVLW256HEHP
3141 Points -34%
Asus FX502VM-AS73
GeForce GTX 1060 Mobile, i7-7700HQ, SK Hynix HFS256G39TND-N210A
2722 Points -43%

Storage Solution

Lenovo has equipped the Legion Y520 with a Samsung NVMe SSD, which is connected via PCI Express x4. This enables considerably higher transfer speeds than with SATA III. Accordingly, the transfer rates are excellent. The SSD has a storage capacity of 128 GB of which about 90 GB are still usable in the delivery state. However, the laptop does not lack any storage space, since in addition to the SSD, there is also a conventional 2.5-inch hard drive in the case, which comes from Seagate and offers 1 TB of storage.

Samsung PM961 NVMe MZVLW128HEGR
Sequential Read: 2127 MB/s
Sequential Write: 796 MB/s
512K Read: 455.6 MB/s
512K Write: 196.7 MB/s
4K Read: 46.07 MB/s
4K Write: 154.8 MB/s
4K QD32 Read: 480.9 MB/s
4K QD32 Write: 170.6 MB/s
Lenovo Legion Y520-15IKBN 80WK0042GE
Samsung PM961 NVMe MZVLW128HEGR
Lenovo Legion Y520-15IKBN-80WK001KUS
Samsung PM961 MZVLW256HEHP
HP Omen 15-ax213ng
Samsung PM961 MZVLW256HEHP
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
Toshiba MQ02ABD100H
Asus FX502VM-AS73
SK Hynix HFS256G39TND-N210A
Acer Aspire VX15 VX5-591G-589S
Hynix HFS128G39TND
Acer Nitro 5 AN515-51-788E
Intel SSD 600p SSDPEKKW256G7
CrystalDiskMark 3.0
74%
91%
-96%
-46%
-38%
28%
Read Seq
2127
2170
2%
1657
-22%
84.7
-96%
503
-76%
510
-76%
945
-56%
Write Seq
796
1202
51%
1208
52%
65.4
-92%
138.2
-83%
137.6
-83%
559
-30%
Read 512
455.6
786
73%
806
77%
19.86
-96%
343.5
-25%
362.1
-21%
639
40%
Write 512
196.7
822
318%
807
310%
28.43
-86%
137.8
-30%
137.2
-30%
561
185%
Read 4k
46.07
58.9
28%
62.6
36%
0.531
-99%
29.36
-36%
35.18
-24%
24.24
-47%
Write 4k
154.8
146.4
-5%
176.9
14%
0.481
-100%
70.9
-54%
104.8
-32%
122.7
-21%
Read 4k QD32
480.9
457.7
-5%
650
35%
1.105
-100%
369.9
-23%
375.8
-22%
288.5
-40%
Write 4k QD32
170.6
392.9
130%
557
226%
0.505
-100%
99.7
-42%
138.1
-19%
504
195%

Graphics Card

The Legion Y520 uses Nvidia's GeForce GTX 1050 Ti graphics core, which represents the upper mid-range. The GPU supports DirectX 12 and reaches speeds of up to 1772 MHz. It is accompanied by 4096 MB of GDDR5 graphics storage. The results in the 3D Mark benchmark show no abnormalities and remain within the normal range of this graphics core. The Intel HD Graphics 630 GPU that comes with the CPU is active, so the switching graphics solution (Optimus) is operating here.

3DMark 06 Standard Score
23891 points
3DMark 11 Performance
8596 points
3DMark Ice Storm Standard Score
108099 points
3DMark Cloud Gate Standard Score
16084 points
3DMark Fire Strike Score
6447 points
3DMark Fire Strike Extreme Score
3450 points
3DMark Time Spy Score
2427 points
Help
3DMark 11 - 1280x720 Performance GPU
Asus FX502VM-AS73
NVIDIA GeForce GTX 1060 Mobile, Intel Core i7-7700HQ
14732 Points +49%
HP Omen 15-ax213ng
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
9909 Points 0%
Lenovo Legion Y520-15IKBN 80WK0042GE
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i5-7300HQ
9904 Points
Acer Aspire VX5-591G-75C4 VX15
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
9768 Points -1%
Medion Erazer X6603
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
9518 Points -4%
Acer Nitro 5 AN515-51-788E
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
9450 Points -5%
Acer Nitro 5 AN515-51-788E
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
9357 Points -6%
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
NVIDIA GeForce GTX 1050 Mobile, Intel Core i5-7300HQ
7982 Points -19%
Acer Aspire VX15 VX5-591G-589S
NVIDIA GeForce GTX 1050 Mobile, Intel Core i5-7300HQ
7835 Points -21%
3DMark
1280x720 Cloud Gate Standard Graphics
Asus FX502VM-AS73
NVIDIA GeForce GTX 1060 Mobile, Intel Core i7-7700HQ
80496 Points +56%
Lenovo Legion Y520-15IKBN 80WK0042GE
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i5-7300HQ
51473 Points
Lenovo Legion Y520-15IKBN-80WK001KUS
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
50981 Points -1%
Medion Erazer X6603
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
50793 Points -1%
Acer Nitro 5 AN515-51-788E
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
50713 Points -1%
Acer Nitro 5 AN515-51-788E
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
50196 Points -2%
HP Omen 15-ax213ng
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
47250 Points -8%
Acer Aspire VX5-591G-75C4 VX15
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
46362 Points -10%
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
NVIDIA GeForce GTX 1050 Mobile, Intel Core i5-7300HQ
35089 Points -32%
1920x1080 Fire Strike Graphics
Asus FX502VM-AS73
NVIDIA GeForce GTX 1060 Mobile, Intel Core i7-7700HQ
11633 Points +49%
HP Omen 15-ax213ng
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
7821 Points 0%
Lenovo Legion Y520-15IKBN 80WK0042GE
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i5-7300HQ
7795 Points
Acer Aspire VX5-591G-75C4 VX15
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
7791 Points 0%
Medion Erazer X6603
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
7694 Points -1%
Acer Nitro 5 AN515-51-788E
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
7683 Points -1%
Acer Nitro 5 AN515-51-788E
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
7666 Points -2%
Lenovo Legion Y520-15IKBN-80WK001KUS
NVIDIA GeForce GTX 1050 Ti Mobile, Intel Core i7-7700HQ
7682 Points -1%
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
NVIDIA GeForce GTX 1050 Mobile, Intel Core i5-7300HQ
5895 Points -24%

Gaming Performance

Not surprisingly, the notebook gives no problems on the gaming front and brings all the current games to the screen smoothly. In most cases, the resolution of the screen (Full HD) can be fully used. You sometimes have to make compromises in the quality level and, depending on the game, a medium to high level has to be used. Games with lesser performance demands also allow the maximum quality settings.

With the game "The Witcher 3," we test whether the frame rates remain largely constant over a longer period of time, letting the game run for about 60 minutes in Full HD resolution and maximum quality settings. During the whole time, the character of the gamer is not moved. We did not notice any drop in the frame rates.

01234567891011121314151617181920212223242526272829Tooltip
The Witcher 3 ultra
low med. high ultra
Tomb Raider (2013) 309.9 288.7 198.4 93.1
BioShock Infinite (2013) 222.2 188.5 165.2 70
The Witcher 3 (2015) 116.7 86.1 47.8 25.6
BioShock Infinite - 1920x1080 Ultra Preset, DX11 (DDOF)
Asus FX502VM-AS73
GeForce GTX 1060 Mobile, i7-7700HQ, SK Hynix HFS256G39TND-N210A
103.1 fps +47%
Acer Nitro 5 AN515-51-788E
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Intel SSD 600p SSDPEKKW256G7
74.1 fps +6%
Lenovo Legion Y520-15IKBN-80WK001KUS
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Samsung PM961 MZVLW256HEHP
74 fps +6%
Medion Erazer X6603
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Samsung PM961 MZVLW256HEHP
73.9 fps +6%
HP Omen 15-ax213ng
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Samsung PM961 MZVLW256HEHP
70.7 fps +1%
Lenovo Legion Y520-15IKBN 80WK0042GE
GeForce GTX 1050 Ti Mobile, i5-7300HQ, Samsung PM961 NVMe MZVLW128HEGR
70 fps
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
GeForce GTX 1050 Mobile, i5-7300HQ, Toshiba MQ02ABD100H
64.9 fps -7%
Acer Aspire VX15 VX5-591G-589S
GeForce GTX 1050 Mobile, i5-7300HQ, Hynix HFS128G39TND
63.6 fps -9%
The Witcher 3 - 1920x1080 High Graphics & Postprocessing (Nvidia HairWorks Off)
HP Omen 15-ax213ng
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Samsung PM961 MZVLW256HEHP
48.3 fps +1%
Lenovo Legion Y520-15IKBN 80WK0042GE
GeForce GTX 1050 Ti Mobile, i5-7300HQ, Samsung PM961 NVMe MZVLW128HEGR
47.8 fps
Acer Nitro 5 AN515-51-788E
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Intel SSD 600p SSDPEKKW256G7
47.4 fps -1%
Acer Aspire VX5-591G-75C4 VX15
GeForce GTX 1050 Ti Mobile, i7-7700HQ, Toshiba MQ01ABD100
45.8 (30min) fps -4%
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
GeForce GTX 1050 Mobile, i5-7300HQ, Toshiba MQ02ABD100H
39 fps -18%

Emissions

Noise Emissions

When idle, the fan ran constantly at a low speed, which can be heard as a low, constant whirring. Under load, the fans speed up. During the stress test, we measure a noise level of 41.7 dB(A), which is quite a good value for a gaming notebook. If you activate the Extreme-Cooling function, the fans run constantly at full speed.

Noise Level

Idle
31.9 / 31.9 / 31.9 dB(A)
Load
34.6 / 41.7 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm distance)   environment noise: 30.6 dB(A)
Lenovo Legion Y520-15IKBN 80WK0042GE
i5-7300HQ, GeForce GTX 1050 Ti Mobile
Lenovo Legion Y520-15IKBN-80WK001KUS
i7-7700HQ, GeForce GTX 1050 Ti Mobile
HP Omen 15-ax213ng
i7-7700HQ, GeForce GTX 1050 Ti Mobile
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
i5-7300HQ, GeForce GTX 1050 Mobile
Asus FX502VM-AS73
i7-7700HQ, GeForce GTX 1060 Mobile
Acer Aspire VX15 VX5-591G-589S
i5-7300HQ, GeForce GTX 1050 Mobile
Acer Nitro 5 AN515-51-788E
i7-7700HQ, GeForce GTX 1050 Ti Mobile
Noise
0%
-15%
-5%
-7%
6%
-3%
off / environment *
30.6
27.7
9%
30
2%
28
8%
28.7
6%
30
2%
30.6
-0%
Idle Minimum *
31.9
30.5
4%
32
-0%
31.6
1%
30.6
4%
30
6%
30.6
4%
Idle Average *
31.9
30.5
4%
34
-7%
31.8
-0%
30.6
4%
30
6%
30.7
4%
Idle Maximum *
31.9
30.6
4%
36
-13%
31.8
-0%
31
3%
31.1
3%
30.7
4%
Load Average *
34.6
40
-16%
48
-39%
36.3
-5%
46.2
-34%
31.3
10%
43
-24%
Witcher 3 ultra *
39.3
40
-2%
49
-25%
46.3
-18%
39.7
-1%
Load Maximum *
41.7
42.6
-2%
51
-22%
49
-18%
52.3
-25%
38.9
7%
45.8
-10%

* ... smaller is better

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs203333.937.131.535.5332533.132.63634.438.633.13139.340.740.339.648.239.34032.932.237.732.435.632.95036.134.440.932.83436.16331.534.433.929.132.231.58028.130.629.327.128.228.110026.22730.426.92726.21252626.728.623.924.32616026.125.925.923.323.226.120026.825.824.923.222.826.825026.526.324.32322.326.531530.629.125.223.721.530.640028.627.42421.620.228.65002826.823.521.519.22863029.527.423.620.818.929.580028.62824.321.918.428.610003432.826.221.617.934125033.130.224.320.31833.1160030.928.622.718.917.630.9200030.227.922.818.417.530.2250032.13023.318.517.932.1315030.725.82018.71830.7400025.623.119.618.518.225.6500024.922.619.518.418.524.9630023.921.219.318.518.623.9800020.819.919.318.718.820.81000019.619.519.318.818.719.61250019.319.519.51918.919.3160002124.124.724.119.121SPL41.839.634.731.930.741.8N3.83.22.21.71.53.8median 26.8median 26.7median 23.6median 20.8median 18.8median 26.8Delta3.22.62.92.323.2hearing rangehide median Fan NoiseLenovo Legion Y520-15IKBN 80WK0042GE

Temperature

The Legion Y520 in the stress test
The Legion Y520 in the stress test

The Legion Y520 runs through our stress test (Prime95 and FurMark running continuously for at least one hour) in slightly different ways in mains and battery operation. The processor runs at 3.1 GHz for 3 to 4 minutes, is then throttled to 2.4 GHz, and remains on this level in mains and battery operation. The clock speed of the graphics core is at 1700 MHz (mains operation) and 700 to 1700 MHz (battery operation).

At no time does the computer warm up too much. During the stress tests, the temperatures remain below 40 °C (104 °F) at all measurement points. While running the Witcher 3 test (the game runs for 1 hour in Full HD resolution and maximum quality settings), the warming is slightly higher.

Max. Load
 24.6 °C
76 F
33.1 °C
92 F
39.6 °C
103 F
 
 24.1 °C
75 F
32.2 °C
90 F
36.6 °C
98 F
 
 22.6 °C
73 F
24.4 °C
76 F
26.7 °C
80 F
 
Maximum: 39.6 °C = 103 F
Average: 29.3 °C = 85 F
38.4 °C
101 F
38.2 °C
101 F
27.6 °C
82 F
33.8 °C
93 F
34.1 °C
93 F
24.5 °C
76 F
24 °C
75 F
23.4 °C
74 F
23 °C
73 F
Maximum: 38.4 °C = 101 F
Average: 29.7 °C = 85 F
Power Supply (max.)  40.6 °C = 105 F | Room Temperature 21.6 °C = 71 F | FIRT 550-Pocket
(+) The average temperature for the upper side under maximal load is 29.3 °C / 85 F, compared to the average of 33.8 °C / 93 F for the devices in the class Gaming.
(+) The maximum temperature on the upper side is 39.6 °C / 103 F, compared to the average of 40.4 °C / 105 F, ranging from 21.2 to 68.8 °C for the class Gaming.
(+) The bottom heats up to a maximum of 38.4 °C / 101 F, compared to the average of 43.2 °C / 110 F
(+) In idle usage, the average temperature for the upper side is 21.1 °C / 70 F, compared to the device average of 33.8 °C / 93 F.
(±) Playing The Witcher 3, the average temperature for the upper side is 33.5 °C / 92 F, compared to the device average of 33.8 °C / 93 F.
(+) The palmrests and touchpad are reaching skin temperature as a maximum (32.9 °C / 91.2 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 28.9 °C / 84 F (-4 °C / -7.2 F).
Heat development, top (load)
Heat development, top (load)
Heat development, top (idle)
Heat development, top (idle)
Heat development, top (Witcher 3)
Heat development, top (Witcher 3)
Heat development, bottom (load)
Heat development, bottom (load)
Heat development, bottom (idle)
Heat development, bottom (idle)
Heat development, bottom (Witcher 3)
Heat development, bottom (Witcher 3)
Lenovo Legion Y520-15IKBN 80WK0042GE
i5-7300HQ, GeForce GTX 1050 Ti Mobile
Lenovo Legion Y520-15IKBN-80WK001KUS
i7-7700HQ, GeForce GTX 1050 Ti Mobile
HP Omen 15-ax213ng
i7-7700HQ, GeForce GTX 1050 Ti Mobile
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
i5-7300HQ, GeForce GTX 1050 Mobile
Asus FX502VM-AS73
i7-7700HQ, GeForce GTX 1060 Mobile
Acer Aspire VX15 VX5-591G-589S
i5-7300HQ, GeForce GTX 1050 Mobile
Acer Nitro 5 AN515-51-788E
i7-7700HQ, GeForce GTX 1050 Ti Mobile
Heat
-28%
-34%
-22%
-38%
-25%
-13%
Maximum Upper Side *
39.6
46.8
-18%
52.4
-32%
47.2
-19%
53.2
-34%
47.2
-19%
41.1
-4%
Maximum Bottom *
38.4
55.8
-45%
54.2
-41%
43.2
-13%
56.8
-48%
42.2
-10%
38.8
-1%
Idle Upper Side *
22.8
27.6
-21%
30.5
-34%
28.6
-25%
28.8
-26%
31.8
-39%
28.7
-26%
Idle Bottom *
22.1
28.4
-29%
28.2
-28%
29
-31%
31.4
-42%
29.5
-33%
26.9
-22%

* ... smaller is better

Speakers

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2033.735.533.72534.338.634.33136.948.236.94033.235.633.25035.43435.46330.132.230.18032.228.232.210027.22727.212531.324.331.316039.923.239.920043.122.843.125046.722.346.731554.321.554.340063.420.263.450058.819.258.863056.818.956.880062.718.462.7100061.317.961.3125064.11864.1160063.717.663.7200062.817.562.825006017.960315065.21865.2400059.118.259.1500065.818.565.8630054.918.654.9800055.518.855.51000057.318.757.31250051.918.951.91600048.719.148.7SPL74.130.774.1N33.51.533.5median 57.3median 18.8median 57.3Delta8.728.735.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6median 17.84.72.4hearing rangehide median Pink NoiseLenovo Legion Y520-15IKBN 80WK0042GEApple MacBook 12 (Early 2016) 1.1 GHz
Lenovo Legion Y520-15IKBN 80WK0042GE audio analysis

(-) | not very loud speakers (65.8 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.9% lower than median
(±) | linearity of bass is average (13.9% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.6% away from median
(±) | linearity of mids is average (8.8% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.6% away from median
(±) | linearity of highs is average (12.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (22.6% difference to median)
Compared to same class
» 79% of all tested devices in this class were better, 5% similar, 16% worse
» The best had a delta of 6%, average was 18%, worst was 132%
Compared to all devices tested
» 62% of all tested devices were better, 6% similar, 32% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (10.2% difference to median)
Compared to same class
» 5% of all tested devices in this class were better, 2% similar, 93% worse
» The best had a delta of 5%, average was 19%, worst was 53%
Compared to all devices tested
» 3% of all tested devices were better, 1% similar, 96% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Frequency comparison (Checkboxes selectable!)

Power Management

Power Consumption

Across the whole range of loads, the power requirements of the Legion Y520 are on a normal level for a notebook of this performance class. When idle, we measure a maximum power consumption of up to 10.1 watts. During the stress test, the value rises up to 100 watts. The Y520 model we tested before uses 21.5 watts more, since it is equipped with a stronger Core-i7 processor. While running our Witcher 3 test, the power consumption of both models is the same. The power supply is rated at 135 watts.

Power Consumption
Off / Standbydarklight 0.39 / 0.42 Watt
Idledarkmidlight 5.2 / 8.3 / 10.1 Watt
Load midlight 62.7 / 100 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Currently we use the Metrahit Energy, a professional single phase power quality and energy measurement digital multimeter, for our measurements. Find out more about it here. All of our test methods can be found here.
Lenovo Legion Y520-15IKBN 80WK0042GE
i5-7300HQ, GeForce GTX 1050 Ti Mobile
Lenovo Legion Y520-15IKBN-80WK001KUS
i7-7700HQ, GeForce GTX 1050 Ti Mobile
HP Omen 15-ax213ng
i7-7700HQ, GeForce GTX 1050 Ti Mobile
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
i5-7300HQ, GeForce GTX 1050 Mobile
Asus FX502VM-AS73
i7-7700HQ, GeForce GTX 1060 Mobile
Acer Aspire VX15 VX5-591G-589S
i5-7300HQ, GeForce GTX 1050 Mobile
Acer Nitro 5 AN515-51-788E
i7-7700HQ, GeForce GTX 1050 Ti Mobile
Power Consumption
-20%
-33%
-26%
-87%
-30%
-5%
Idle Minimum *
5.2
8.5
-63%
6
-15%
9.1
-75%
14.9
-187%
8.4
-62%
4.1
21%
Idle Average *
8.3
9.1
-10%
11
-33%
10.3
-24%
15.1
-82%
13.1
-58%
6.9
17%
Idle Maximum *
10.1
9.7
4%
18
-78%
13
-29%
15.2
-50%
14.2
-41%
9.5
6%
Load Average *
62.7
79.9
-27%
81
-29%
75.6
-21%
105.8
-69%
50
20%
83
-32%
Witcher 3 ultra *
94
97.7
-4%
90
4%
83.8
11%
108
-15%
Load Maximum *
100
121.5
-22%
146
-46%
115.2
-15%
148.8
-49%
111
-11%
126
-26%

* ... smaller is better

Battery Life

In our practically relevant WLAN test, we simulate the load when opening web sites via a script. The "Balanced" profile is active, the power-saving functions are deactivated, and the display brightness is adjusted to about 150 cd/m². The Legion Y520 achieves a runtime of 5:10 hours, and it lasts for 4:32 hours in the video test, where we run the short film Big Buck Bunny (H.264 coded, 1920x1080 pixels) in a continuous loop. The communication modules and power-saving functions are deactivated and the display brightness is lowered to 150 cd/m². Overall, the Y520 does slightly better than the Core-i7 sibling model.

Battery Runtime
Idle (without WLAN, min brightness)
10h 34min
WiFi Websurfing (Edge 40)
5h 10min
Big Buck Bunny H.264 1080p
4h 32min
Load (maximum brightness)
1h 21min
Lenovo Legion Y520-15IKBN 80WK0042GE
i5-7300HQ, GeForce GTX 1050 Ti Mobile, 45 Wh
Lenovo Legion Y520-15IKBN-80WK001KUS
i7-7700HQ, GeForce GTX 1050 Ti Mobile, 45 Wh
HP Omen 15-ax213ng
i7-7700HQ, GeForce GTX 1050 Ti Mobile, 63.3 Wh
Acer Aspire VX5-591G-75C4 VX15
i7-7700HQ, GeForce GTX 1050 Ti Mobile, 52.5 Wh
Dell Inspiron 15 7000 7567 Gaming (Core i5-7300HQ, GTX 1050)
i5-7300HQ, GeForce GTX 1050 Mobile, 74 Wh
Asus FX502VM-AS73
i7-7700HQ, GeForce GTX 1060 Mobile, 64 Wh
Medion Erazer X6603
i7-7700HQ, GeForce GTX 1050 Ti Mobile, 45 Wh
Acer Aspire VX15 VX5-591G-589S
i5-7300HQ, GeForce GTX 1050 Mobile, 52.5 Wh
Acer Nitro 5 AN515-51-788E
i7-7700HQ, GeForce GTX 1050 Ti Mobile, 48 Wh
Battery Runtime
-29%
13%
-17%
69%
-25%
-31%
6%
16%
Reader / Idle
634
509
-20%
765
21%
322
-49%
1091
72%
363
-43%
340
-46%
893
41%
H.264
272
196
-28%
227
-17%
309
14%
WiFi v1.3
310
240
-23%
428
38%
302
-3%
569
84%
277
-11%
257
-17%
330
6%
400
29%
Load
81
46
-43%
97
20%
81
0%
122
51%
64
-21%
46
-43%
63
-22%

Verdict

Pros

+ IPS display
+ Full HD resolution
+ NVMe SSD
+ a lot of storage space
+ does not warm up a lot

Cons

- plastic case with a fairly weak display lid
- brightness and contrast turn out mediocre
The Lenovo Legion Y520-15IKBN 80WK0042GE, provided by Lenovo Germany.
The Lenovo Legion Y520-15IKBN 80WK0042GE, provided by Lenovo Germany.

With the Lenovo Legion Y520 80WK0042GE, you get a 15.6-inch notebook that has a Kaby Lake quad-core processor and a GeForce GTX 1050 Ti graphics core on board. The hardware brings most of the games to the display smoothly in high resolutions and at medium to high quality settings. Very power-hungry games require a reduction of the resolution and/or the quality settings. Over the whole range of loads, the computer does not heat up too much and runs mostly quietly, at least while idling.

With the Legion Y520-15IKBN, Lenovo delivers a well equipped entry-level gamer.

Thanks to a good keyboard and quiet operation when idle and low loads, the computer is also usable in the office. A very fast NVMe SSD assures a fast running system. The storage necessary for a gaming notebook is provided by a 2.5-inch hard drive that is also installed. Both drives can be removed. For this, the case would have to be opened. Brightness and contrast of the matte IPS Full HD display are okay, but could have been a tad better in general.

Lenovo Legion Y520-15IKBN 80WK0042GE - 10/02/2017 v6(old)
Sascha Mölck

Chassis
71 / 98 → 73%
Keyboard
84%
Pointing Device
83%
Connectivity
49 / 81 → 61%
Weight
60 / 10-66 → 90%
Battery
80%
Display
85%
Games Performance
90%
Application Performance
91%
Temperature
93 / 95 → 98%
Noise
88 / 90 → 98%
Audio
55%
Camera
40 / 85 → 46%
Average
74%
81%
Gaming - Weighted Average

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Reviews > Lenovo Legion Y520-15IKBN (7300HQ, GTX 1050 Ti, FHD) Laptop Review
Sascha Mölck, 2017-10- 4 (Update: 2020-05-19)