Notebookcheck

Acer Aspire ES1-331-C5KL Notebook Review

Sascha Mölck, Tanja Hinum (translated by Martina Osztovits), 09/23/2015

Braswell upgrade. Acer's 13.3-incher delivers long battery runtimes, a decent keyboard, and a matte display. It is priced at about 380 Euros (~$424). However, the computer also showed weaknesses.

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Acer's 13.3-incher is not unknown to us. We already scrutinized the computer a few months ago. The Bay Trail processor was replaced by a new Braswell model in our test model. Our review will reveal whether the new CPU is advantageous.

The Aspire is a representative of the low-price segment and does not have too many competitors. For example, there is the Aspire V3-371, which also stems from Acer, and the HP 14. Chromebooks like the Toshiba Chromebook 2 CB30-B-104 also belong to the competition.

Since the Aspire ES1-331 and the ES1-311 share the same design, we will not cover case, connectivity, input devices, display, and speakers in detail here. Please refer to the Aspire ES1-311 review for information about these.

Acer Aspire ES1-331-C5KL (Aspire ES1 Series)
Graphics adapter
Intel HD Graphics (Braswell), Core: 320 MHz, Memory: 640 MHz, single channel, 10.18.14.4185
Memory
4096 MB 
, DDR3, single channel, one RAM slot (used)
Display
13.3 inch 16:9, 1366 x 768 pixel, Chi Mei N133BGE-EAB, TN LED, glossy: no
Storage
Seagate Momentus Thin ST500LT012-1DG142, 500 GB 
, 5400 rpm, 420 GB free
Soundcard
Realtek ALC255 @ Intel Cherry Trail / Braswell SoC - HD Audio Controller
Connections
1 USB 2.0, 1 USB 3.0 / 3.1 Gen1, 1 HDMI, 1 Kensington Lock, Audio Connections: 3.5 mm combo, Card Reader: SD, Sensors: brightness sensor
Networking
Realtek RTL8168/8111 Gigabit-LAN (10/100/1000MBit), Broadcom BCM43142 (b/g/n), Bluetooth 4.0
Size
height x width x depth (in mm): 21 x 327 x 228 ( = 0.83 x 12.87 x 8.98 in)
Battery
37 Wh Lithium-Ion
Operating System
Microsoft Windows 8.1 64 Bit
Camera
Webcam: HD webcam
Additional features
Speakers: Stereo, Keyboard: Chiclet, Keyboard Light: no, Cyberlink PhotoDirector 5, Cyberlink PowerDirector 12, Dropbox 15 GB, Foxit PhantomPDF, McAfee LiveSafe - Internet Security (trial version), MS Office (trial version), 24 Months Warranty
Weight
1.6 kg ( = 56.44 oz / 3.53 pounds), Power Supply: 279 g ( = 9.84 oz / 0.62 pounds)
Price
380 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Display

The Aspire comes with the same matte 13.3-inch display as its predecessor. The display delivers a decent brightness and an acceptable contrast in view of the price point. Although it is the same display model, the measurement values are different, but this is usual. Two identical displays are never absolutely the same.

250
cd/m²
266
cd/m²
257
cd/m²
269
cd/m²
289
cd/m²
278
cd/m²
261
cd/m²
265
cd/m²
263
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 289 cd/m² Average: 266.4 cd/m²
Brightness Distribution: 87 %
Center on Battery: 235 cd/m²
Contrast: 425:1 (Black: 0.68 cd/m²)
ΔE Color 10.9 | 0.4-29.43 Ø6.2
ΔE Greyscale 12.65 | 0.64-98 Ø6.4
67.9% sRGB (Argyll 3D) 42% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.11

Performance

The Aspire ES1-331 is a simple 13.3-inch office notebook. The processing performance of its Braswell CPU is sufficient for office and Internet tasks. Thanks to the long battery runtimes, it is useful as a decent mobile typewriter or Internet device. Our test model is available for about 380 Euros (~$424). Acer also offers variants with different hardware.

Processor

Celeron N3150 quad-core processor works inside the Aspire. It is a representative of Intel's current Braswell CPU family. The processor works at a base clock of 1.6 GHz. Thanks to Turbo, the CPU can accelerate to up to 2.08 GHz. A Bay Trail predecessor which works at the same clock rate is not available. However, we know from experience that a Braswell processor with the same clock rate is only very slightly faster than its Bay Trail counterpart. The CPU behaves the same way in the tested benchmarks in mains operation and on battery. Multithread tasks are run at full speed while the processor clocks at between 1.6 to 2.08 GHz in single-thread applications.

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Cinebench R10 Shading 32Bit
2231
Cinebench R10 Rendering Multiple CPUs 32Bit
3624
Cinebench R10 Rendering Single 32Bit
1085
Cinebench R11.5 OpenGL 64Bit
9.36 fps
Cinebench R11.5 CPU Multi 64Bit
1.46 Points
Cinebench R11.5 CPU Single 64Bit
0.41 Points
Cinebench R15 Ref. Match 64Bit
98 %
Cinebench R15 OpenGL 64Bit
12 fps
Cinebench R15 CPU Multi 64Bit
118 Points
Cinebench R15 CPU Single 64Bit
32 Points
Help
Cinebench R15
CPU Single 64Bit (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
32 Points ∼15%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
42 Points ∼19% +31%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
49 Points ∼22% +53%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
108 Points ∼50% +238%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
76 Points ∼35% +138%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
64 Points ∼29% +100%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
34 Points ∼16% +6%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
47 Points ∼22% +47%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
35 Points ∼16% +9%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
35 Points ∼16% +9%
CPU Multi 64Bit (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
118 Points ∼3%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
157 Points ∼4% +33%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
165 Points ∼4% +40%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
260 Points ∼6% +120%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
191 Points ∼4% +62%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
122 Points ∼3% +3%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
95 Points ∼2% -19%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
157 Points ∼4% +33%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
123 Points ∼3% +4%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
129 Points ∼3% +9%
Cinebench R11.5
CPU Single 64Bit (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
0.41 Points ∼17%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
0.5 Points ∼20% +22%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
0.59 Points ∼24% +44%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
1.23 Points ∼50% +200%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
0.8 Points ∼33% +95%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
0.75 Points ∼31% +83%
HP 14-r003ng
HD Graphics (Bay Trail), N3530, 500 GB - 5400 rpm
0.42 Points ∼17% +2%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
0.41 Points ∼17% 0%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
0.57 Points ∼23% +39%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
0.41 Points ∼17% 0%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
0.41 Points ∼17% 0%
CPU Multi 64Bit (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
1.46 Points ∼5%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
1.88 Points ∼7% +29%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
2.04 Points ∼8% +40%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
2.81 Points ∼10% +92%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
2.03 Points ∼7% +39%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
1.41 Points ∼5% -3%
HP 14-r003ng
HD Graphics (Bay Trail), N3530, 500 GB - 5400 rpm
1.44 Points ∼5% -1%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
1.16 Points ∼4% -21%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
1.93 Points ∼7% +32%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
1.58 Points ∼6% +8%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
1.39 Points ∼5% -5%
Cinebench R10
Rendering Single 32Bit (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
1085 Points ∼10%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
1348 Points ∼12% +24%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
2267 Points ∼21% +109%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
4186 Points ∼39% +286%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
2813 Points ∼26% +159%
HP 14-r003ng
HD Graphics (Bay Trail), N3530, 500 GB - 5400 rpm
1117 Points ∼10% +3%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
1251 Points ∼12% +15%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
1840 Points ∼17% +70%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
1120 Points ∼10% +3%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
1133 Points ∼10% +4%
Rendering Multiple CPUs 32Bit (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
3624 Points ∼7%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
4754 Points ∼10% +31%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
7010 Points ∼14% +93%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
8524 Points ∼17% +135%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
6285 Points ∼13% +73%
HP 14-r003ng
HD Graphics (Bay Trail), N3530, 500 GB - 5400 rpm
3398 Points ∼7% -6%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
3380 Points ∼7% -7%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
5612 Points ∼11% +55%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
3687 Points ∼7% +2%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
3862 Points ∼8% +7%
Geekbench 3
32 Bit Multi-Core Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
2824 Points ∼9%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
3282 Points ∼11% +16%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
3803 Points ∼12% +35%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
3779 Points ∼12% +34%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
2239 Points ∼7% -21%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
3565 Points ∼11% +26%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
2727 Points ∼9% -3%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
2653 Points ∼9% -6%
32 Bit Single-Core Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
850 Points ∼18%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
991 Points ∼21% +17%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
1277 Points ∼26% +50%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
1792 Points ∼37% +111%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
882 Points ∼18% +4%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
1237 Points ∼26% +46%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
842 Points ∼17% -1%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
839 Points ∼17% -1%
Sunspider - 1.0 Total Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
412.3 ms * ∼5%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
297.6 ms * ∼3% +28%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
271 ms * ∼3% +34%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
214.1 ms * ∼2% +48%
HP 14-r003ng
HD Graphics (Bay Trail), N3530, 500 GB - 5400 rpm
511.9 ms * ∼6% -24%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
696.1 ms * ∼8% -69%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
393 ms * ∼4% +5%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
251.1 ms * ∼3% +39%
Acer Aspire E15 ES1-511-C50C
HD Graphics (Bay Trail), N2930, Western Digital Scorpio Blue WD5000LPVX
378.6 ms * ∼4% +8%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
423.3 ms * ∼5% -3%
Mozilla Kraken 1.1 - Total Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
7862.6 ms * ∼13%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
6254.1 ms * ∼11% +20%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
6296.2 ms * ∼11% +20%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
1592.4 ms * ∼3% +80%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
9354.9 ms * ∼16% -19%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
5975.9 ms * ∼10% +24%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
6468.4 ms * ∼11% +18%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
7469.4 ms * ∼13% +5%
Octane V2 - Total Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
3963 Points ∼8%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
5050 Points ∼10% +27%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
5800 Points ∼12% +46%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
24238 Points ∼49% +512%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
6827 Points ∼14% +72%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
3947 Points ∼8% 0%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
5575 Points ∼11% +41%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
4186 Points ∼8% +6%
Peacekeeper - --- (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
724 Points ∼12%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
883 Points ∼14% +22%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
1173 Points ∼19% +62%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
1205 Points ∼19% +66%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
781 Points ∼13% +8%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
1088 Points ∼18% +50%
Acer Travelmate B115-MP-C2TQ
HD Graphics (Bay Trail), N2930, Seagate Momentus Thin ST500LT012-1DG142
731 Points ∼12% +1%

* ... smaller is better

System Performance

We definitely had some issues with the computer. The system froze multiple times. This always happened when demands on the hardware were high. For example, we were unable to complete the stress test despite multiple tries. This also happened during the Tomb Raider benchmark. The computer crashes when GPU-Z is launched.

The results of the PCMark benchmarks are normal for the used hardware platform. Thanks to a more powerful graphics core, the Aspire performs better than comparable Bay Trail computers. The system performance can be improved by replacing the hard drive with a Solid State Drive.

PCMark 7 Score
1635 points
PCMark 8 Home Score Accelerated v2
1640 points
PCMark 8 Creative Score Accelerated v2
1747 points
PCMark 8 Work Score Accelerated v2
1283 points
Help
PCMark 8 - Home Score Accelerated v2 (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
1640 Points ∼27%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
1485 Points ∼24% -9%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
1955 Points ∼32% +19%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
2939 Points ∼48% +79%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
2158 Points ∼35% +32%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
1848 Points ∼30% +13%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
1933 Points ∼32% +18%

Storage Devices

The Aspire comes with a conventional 2.5-inch hard drive from Seagate. It delivers a capacity of 500 GB and works at 5400 rpm. The transfer rates are usual for a 5400 rpm hard drive.

Seagate Momentus Thin ST500LT012-1DG142
Transfer Rate Minimum: 38.2 MB/s
Transfer Rate Maximum: 116.1 MB/s
Transfer Rate Average: 87.5 MB/s
Access Time: 20.2 ms
Burst Rate: 154.8 MB/s
CPU Usage: 9.9 %

Graphics Card

Intel's HD Graphics (Braswell) GPU is responsible for graphics. It clocks at up to 640 MHz. Although the clock rate is hardly different to the Bay Trail predecessor's, the Braswell GPU achieves almost double as high results in the 3DMark benchmarks. This is due to the Braswell graphics cores being based on the same architecture as the Broadwell processors from Intel. Thus, Intel offers graphics cores in the low price segment which can keep up with low cost models from AMD (Radeon R2 (Mullins/Beema) and R3 (Mullins/Beema)). In addition, Intel's new GPU brings an interesting feature, which is not available in the Bay Trail predecessor: It can play H.265 coded videos (H.265 is the successor of the familiar H.264).

3DMark 11 Performance
462 points
3DMark Ice Storm Standard Score
21443 points
3DMark Cloud Gate Standard Score
1879 points
3DMark Fire Strike Score
219 points
Help
3DMark 11 - 1280x720 Performance (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
462 Points ∼1%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
274 Points ∼1% -41%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
826 Points ∼3% +79%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
1162 Points ∼4% +152%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
786 Points ∼3% +70%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
555 Points ∼2% +20%
HP 14-r003ng
HD Graphics (Bay Trail), N3530, 500 GB - 5400 rpm
248 Points ∼1% -46%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
444 Points ∼1% -4%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
788 Points ∼3% +71%
Acer Aspire R11 R3-131T-C122
HD Graphics (Braswell), N3050, HBG3e 32G eMMC
435 Points ∼1% -6%
Acer Aspire ES1-131
HD Graphics (Braswell), N3050, 32 GB eMMC Flash
443 Points ∼1% -4%
3DMark
1920x1080 Fire Strike Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
219 Points ∼1%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
484 Points ∼2% +121%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
482 Points ∼2% +120%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
304 Points ∼1% +39%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
219 Points ∼1% 0%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
460 Points ∼2% +110%
Acer Aspire ES1-131
HD Graphics (Braswell), N3050, 32 GB eMMC Flash
204 Points ∼1% -7%
1280x720 Sky Diver Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
1058 Points ∼2%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
585 Points ∼1% -45%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
1827 Points ∼3% +73%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
2247 Points ∼4% +112%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
1439 Points ∼2% +36%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
982 Points ∼2% -7%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
1849 Points ∼3% +75%
Acer Aspire ES1-131
HD Graphics (Braswell), N3050, 32 GB eMMC Flash
1001 Points ∼2% -5%
1280x720 Cloud Gate Standard Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
1879 Points ∼3%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
1609 Points ∼3% -14%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
2865 Points ∼5% +52%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
5146 Points ∼9% +174%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
3603 Points ∼6% +92%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
2366 Points ∼4% +26%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
1638 Points ∼3% -13%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
2856 Points ∼5% +52%
Acer Aspire R11 R3-131T-C122
HD Graphics (Braswell), N3050, HBG3e 32G eMMC
1523 Points ∼3% -19%
Acer Aspire ES1-131
HD Graphics (Braswell), N3050, 32 GB eMMC Flash
1539 Points ∼3% -18%
1280x720 Ice Storm Standard Score (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
21443 Points ∼2%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
20924 Points ∼2% -2%
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
32751 Points ∼3% +53%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
54754 Points ∼5% +155%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
34508 Points ∼3% +61%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
25637 Points ∼2% +20%
HP 14-r003ng
HD Graphics (Bay Trail), N3530, 500 GB - 5400 rpm
18460 Points ∼2% -14%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
16523 Points ∼1% -23%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
32665 Points ∼3% +52%
Acer Aspire R11 R3-131T-C122
HD Graphics (Braswell), N3050, HBG3e 32G eMMC
17227 Points ∼2% -20%
Acer Aspire ES1-131
HD Graphics (Braswell), N3050, 32 GB eMMC Flash
17593 Points ∼2% -18%

Gaming Performance

Although, the GPU is significantly more powerful than the Bay Trail predecessor's, it does not turn the Aspire into a gaming capable notebook. Only a few games reach high enough frame rates - at low resolution and low quality settings. Casual games from the Windows Store largely run without problems.

low med. high ultra
Tomb Raider (2013) 19.4118fps
Far Cry 4 (2014) 6.14.3fps
Dragon Age: Inquisition (2014) 8.26.1fps
Evolve (2015) 5.43.9fps
Battlefield Hardline (2015) 13.28.7fps
Dirt Rally (2015) 27.27.1fps
Metal Gear Solid V (2015) 13.79.5fps

Emissions & Energy

System Noise

The fan often stands still while the computer runs idle. Otherwise, it works at low speed and is drowned by the hard drive. The fan does not work much under load, either. During our stress test, we measure a noise level of 36.1 dB. We criticized that the fan produces a whistling noise in the predecessor model. The ES1-331 does so, too.

Noise Level

Idle
31.4 / 32.1 / 33 dB(A)
HDD
33.2 dB(A)
Load
35.5 / 36.1 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Voltcraft sl-320 (15 cm distance)

Temperature

The Aspire during the stress test.
The Aspire during the stress test.

As already mentioned earlier, we could not completely run our stress test. The computer froze again and again when we ran it. Nevertheless, we can say that the computer behaves the same way in mains operation and on battery. The processor clocks at 2.08 GHz. The clock rate of the graphics core already falls from 640 MHz to 360 MHz in the first few minutes. The notebook does not get especially hot. During our stress test, only a few spots just exceeded 30 °C. We measured a maximum temperature of 34.2 °C.

Max. Load
 28.5 °C
83 F
32 °C
90 F
31 °C
88 F
 
 28.1 °C
83 F
30.3 °C
87 F
29.3 °C
85 F
 
 25.2 °C
77 F
26.2 °C
79 F
27.1 °C
81 F
 
Maximum: 32 °C = 90 F
Average: 28.6 °C = 83 F
30.6 °C
87 F
34.2 °C
94 F
30.9 °C
88 F
27.1 °C
81 F
31.3 °C
88 F
32.5 °C
91 F
26.5 °C
80 F
26.6 °C
80 F
25.6 °C
78 F
Maximum: 34.2 °C = 94 F
Average: 29.5 °C = 85 F
Power Supply (max.)  32.7 °C = 91 F | Room Temperature 23.9 °C = 75 F | Voltcraft IR-360
(+) The average temperature for the upper side under maximal load is 28.6 °C / 83 F, compared to the average of 30.7 °C / 87 F for the devices in the class Subnotebook.
(+) The maximum temperature on the upper side is 32 °C / 90 F, compared to the average of 35.8 °C / 96 F, ranging from 22 to 57 °C for the class Subnotebook.
(+) The bottom heats up to a maximum of 34.2 °C / 94 F, compared to the average of 40.2 °C / 104 F
(+) In idle usage, the average temperature for the upper side is 27.5 °C / 82 F, compared to the device average of 30.7 °C / 87 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 27.1 °C / 80.8 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28.6 °C / 83.5 F (+1.5 °C / 2.7 F).

Power Consumption

A 13.3-inch notebook with a very weak processor cannot have a high power consumption, which is proved in practice. While idle, the power consumption is up to 7.8 Watt. The energy demand also does not get unexpectedly high under load. We measured 16.9 Watt during the stress test. So, the Aspire is slightly more frugal than its predecessor regardless of the load.

Power Consumption
Off / Standbydarklight 0.3 / 0.7 Watt
Idledarkmidlight 5.1 / 6.8 / 7.8 Watt
Load midlight 14.1 / 16.9 Watt
 color bar
Key: min: dark, med: mid, max: light        Voltcraft VC 940

Battery Life

In our realistic Wi-Fi test we simulate load during web surfing. The "balanced" profile is active and the display brightness is set to about 150 cd/m². The Aspire achieves a good battery life of 6:35 h. But, it falls slightly behind its Bay Trail sibling.

Battery Runtime
NBC WiFi Websurfing Battery Test 1.3
6h 35min
Battery Runtime
WiFi v1.3 (sort by value)
Acer Aspire ES1-331-C5KL
HD Graphics (Braswell), N3150, Seagate Momentus Thin ST500LT012-1DG142
395 min ∼95%
Acer Aspire E13 ES1-311-P87D
HD Graphics (Bay Trail), N3540, WDC Slim WD10SPCX-21KHST0
415 min ∼100%
WiFi (sort by value)
HP Pavilion 13-a093na x360
Radeon R5 (Beema/Carrizo-L), A8-6410, WDC Slim WD10SPCX-22HWST0
348 min ∼101%
Acer Aspire V3-371-58DJ
HD Graphics 5500, 5200U, Kingston RBU-SC100S37240GE
585 min ∼170%
Acer Aspire V3-371-36M2
HD Graphics 4400, 4030U, Seagate ST500LM000 Solid State Hybrid Drive
394 min ∼114%
Acer Aspire V3-331-P982
HD Graphics (Haswell), 3556U, Seagate ST500LM000 Solid State Hybrid Drive
387 min ∼112%
HP 14-r003ng
HD Graphics (Bay Trail), N3530, 500 GB - 5400 rpm
302 min ∼88%
HP Stream 14-z050ng
Radeon R3 (Mullins/Beema), A4 Micro-6400T, 32 GB eMMC Flash
317 min ∼92%
Toshiba Satellite L50D-B-12Z
Radeon R4 (Beema), A6-6310, Toshiba MQ01ABF050
345 min ∼100%

Pros

+ Matte display
+ Big storage capacity
+ Long battery runtimes
+ Two years warranty

Cons

- The fan produces a quiet whistling noise.
- Occasional system freezes under load

Verdict

In review: Acer Aspire ES1-331-C5KL. Test model provided by Cyberport.de
In review: Acer Aspire ES1-331-C5KL. Test model provided by Cyberport.de

The Acer Aspire ES1-331-C5KL is a simple 13.3-inch notebook which is suitable for office and Internet applications. Thanks to the combination of matte display, decent keyboard, long battery life, and quite low price (400 Euros, ~$447), you'll get a mobile typewriter and surf device, which might be especially attractive for price-conscious customers. Unfortunately, the whistling fan of the predecessor remained. Since the fan does not work too often during everyday tasks, this is bearable. It is a more serious problem that the system crashes under load. This must not happen.

The Braswell Aspire does not really bring advantages when directly compared to its Bay Trail predecessor.

Those who do not need a higher graphics performance or the capability to play H.265 videos should consider our Bay Trail test model of the Aspire as an alternative. Currently, the latter is about 50 Euros (~$55) cheaper than our Braswell model. In addition, the Bay Trail model uses a more powerful processor. Compared to a Braswell model with a comparable processor, the price advantage of the Bay Trail model is even 70 Euros (~$78).

Acer Aspire ES1-331-C5KL - 09/20/2015 v4(old)
Sascha Mölck

Chassis
76 /  98 → 78%
Keyboard
74%
Pointing Device
81%
Connectivity
56 / 80 → 70%
Weight
68 / 35-78 → 77%
Battery
90%
Display
77%
Games Performance
47 / 68 → 69%
Application Performance
47 / 87 → 54%
Temperature
93 / 91 → 100%
Noise
89%
Audio
60 / 91 → 66%
Camera
40 / 85 → 47%
Add Points
-2%
Average
64%
75%
Subnotebook - Weighted Average

Pricecompare

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> Notebook / Laptop Reviews and News > Reviews > Archive of our own reviews > Acer Aspire ES1-331-C5KL Notebook Review
Sascha Mölck, 2015-09-23 (Update: 2018-05-15)