Notebookcheck

Nexoc G734III (Clevo P670RS-G) Notebook Review

Nino Ricchizzi, Stefanie Voigt (translated by Martina Osztovits), 09/16/2016

Play with Pascal. Nexoc also upgrades to Nvidia's new Pascal architecture now and incorporates the GeForce GTX 1070 in a 17.3-inch notebook. High performance meets a high-end case and decent input devices. We were only bothered about the fans and the temperature increase.

For the original German review, see here.

With a GeForce GTX 1070 GPU, the Nexoc G734III (based on Clevo's barebone P670RS-G) joins the Pascal notebooks reviewed by us. Thanks to an Intel Core i7 processor and 32 GB RAM, the performance is high enough for gaming. Many games can be accommodated on the 256 GB SSD and 1 TB HDD. Currently, our test configuration is listed for a price of 2460 Euros (~$2743).

For playing in the high-end notebook league, the Nexoc G734III has to prevail against its current competitors. So far, we have already scrutinized four other 17-inch contenders with the GeForce GTX 1070. Our MSI GT72VR test model sports equivalent hardware. Depending on the configuration, it costs between 2000 and 2500 Euros (~$2230 and ~$2788). The second device in our comparison group is our Asus ROG G752VS test model with a more powerful Intel Core i7-6820HK and double the RAM. The second to last contender also contains a more powerful CPU. However, the MSI GT73VR is significantly more expensive. The manufacturer charges 2900 Euros (~$3234) for the presented variant. The Acer Predator 17 G9-793 with 4K display makes the test field complete. It also costs just under 3000 Euros (~$3345).

Working For Notebookcheck

Are you a techie who knows how to write? Then join our Team! Especially English native speakers welcome!

Currently wanted: 
News and Editorial Editor - Details here

Nexoc G734III
Processor
Intel Core i7-6700HQ (Intel Core i7), 4 cores, TDP 45 W
Graphics adapter
NVIDIA GeForce GTX 1070 (Laptop) - 8192 MB, Core: 1443 MHz, Memory: 4000 MHz, GDDR5, ForceWare 372.54, Optimus
Memory
32768 MB 
, Dual-Channel, SO-DIMM DDR4-2400, Timing 14-14-14-35, 2 of 4 slots used, max. 64 GB
Display
17.3 inch 16:9, 1920 x 1080 pixel 127 PPI, LG Philips LP173WF4-SPD1 (LGD046C), IPS, G-Sync, 60 Hz, Full HD, glossy: no
Mainboard
Intel HM170 (Skylake PCH-H)
Storage
Samsung SM951 MZVPV256HDGL m.2 PCI-e, 256 GB 
, SSD + Seagate ST1000LM035-1RK1721, 1 TB HDD @ 5400 rpm. Bays: 2x m.2 type 2280 & 2x 2.5-inch
Soundcard
Realtek ALC899 @ Intel Skylake PCH-H - High Definition Audio Controller
Connections
3 USB 3.0 / 3.1 Gen1, 2 USB 3.1 Gen2, 1 HDMI, 2 DisplayPort, 1 Kensington Lock, Audio Connections: headphones/SPIF, microphone, line-in, Card Reader: MMC,RSMMC,SD,Mini SD,SDHC,SDXC, 1 Fingerprint Reader, Brightness Sensor
Networking
Realtek RTL8168B/8111B Family PCI-E Gigabit Ethernet NIC (10/100/1000/2500/5000MBit/s), Intel Dual Band Wireless-AC 8260 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5), Bluetooth 4.1
Size
height x width x depth (in mm): 30 x 417 x 287 ( = 1.18 x 16.42 x 11.3 in)
Battery
60 Wh Lithium-Polymer, 4 cells
Operating System
Microsoft Windows 10 Home 64 Bit
Camera
Webcam: 2 MP FHD
Additional features
Speakers: 2.1 (Sound Blaster X-Fi MB5), Keyboard: Chiclet, Keyboard Light: yes, power adapter: 230 Watt, accessories: LG DVD burner, microfiber cloth, user guide, thermal pad, Software: Control Center, 24 Months Warranty
Weight
3.34 kg ( = 117.82 oz / 7.36 pounds), Power Supply: 738 g ( = 26.03 oz / 1.63 pounds)
Price
2460 EUR
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Case

As usual for a gaming notebook, the case is very bulky. Thus, the device might rather be used as a desktop replacement. Not least because of its relatively high weight, the gaming laptop appears robust. The palm rests and the lid are made from brushed aluminum. Unfortunately, the lid can be depressed and twisted. The 2.5 cm wide hinges allow smooth, one-handed opening with comfortable resistance. It remains to be seen how well the hinges work in the long run.

Overall, the case with Stealth Design appears quite plain - despite its size. This is thanks to the color choice and the lack of decorations such as a manufacturer's logo on the lid. In terms of build quality, we can hardly find anything negative. Almost all parts and edges blend into each other cleanly. If we are very picky, the front edge of the case slightly sticks out. However, we still like the case since this is not visible.

Unfortunately, the system lacks hatches on the underside for easy maintenance. In addition, the battery cannot be removed without tools. You have to remove the bottom panel, which is fixed with 19 screws, for access to the inside.

No ornaments...
No ornaments...
...let the gaming noteboook...
...appear simple and...
...
small hinges for the heavy display
good build quality of the 17.3-inch notebook
You have to remove the bottom panel for maintenance
access to the Wi-Fi module
Two of four RAM slots are used.
There is a bay for adding a third storage device.

With its weight and size, the 17-incher is not really a portable device; the quite bulky and heavy case wants to replace a classical desktop PC. However, the Nexoc G734III is quite lightweight for a gaming notebook. At about 3.3 kg, it is just under 600 g lighter than the MSI GT72VR and as much as 1.2 kg lighter than the Asus ROG G752VS.

The height is up to 3.46 cm at the rear. At 3.1 cm, the notebook is slightly slimmer at the front. The competitors are significantly thicker.

Size Comparison

428 mm / 16.9 inch 333 mm / 13.1 inch 51 mm / 2.01 inch 4.5 kg9.94 lbs428 mm / 16.9 inch 287 mm / 11.3 inch 49 mm / 1.929 inch 4.1 kg8.97 lbs428 mm / 16.9 inch 294 mm / 11.6 inch 48 mm / 1.89 inch 3.9 kg8.53 lbs423 mm / 16.7 inch 322 mm / 12.7 inch 40 mm / 1.575 inch 4.2 kg9.33 lbs417 mm / 16.4 inch 287 mm / 11.3 inch 30 mm / 1.181 inch 3.3 kg7.36 lbs

Connectivity

Interface

It is noteworthy that the system comes with two USB 3.1 type C Gen2 ports in addition to three USB 3.0 ports. Moreover, the G734III delivers an HDMI-out and two mini DisplayPorts. Unfortunately, neither the USB 3.1 port nor the mini DisplayPort supports Thunderbolt connections. All things considered, the interface layout is satisfactory. Interfaces for external displays and the power adapter are on the rear side. The often used Ethernet port is unfavorably placed on the right side. What's more, the distance between the interfaces could be slightly bigger.

Right: headphones, microphone, line-in, card reader, USB 3.0, Ethernet port, Kensington lock
Right: headphones, microphone, line-in, card reader, USB 3.0, Ethernet port, Kensington lock
Left: Mini-DisplayPort, 2x USB 3.1 Typ-C, 2x USB 3.0
Left: Mini-DisplayPort, 2x USB 3.1 Typ-C, 2x USB 3.0
Rear: power-in, HDMI out, mini DisplayPort
Rear: power-in, HDMI out, mini DisplayPort
Front
Front

SD Card Reader

Card reader in the test
Card reader in the test

We analyze the performance of the card readers with a Toshiba Exceria Pro SDXC 64 GB UHS-II reference card by copying jpg images (about 5 MB each). The G734III achieves a mid-range transfer rate of about 77 MB/s. The result is on par with the Asus ROG G752VS. The competitors from MSI accomplish significantly better values. Both of them easily exceed 100 MB/s. The MSI GT73VR even reaches double the test model's transfer rate.

SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
MSI GT73VR-6RE16SR451
 
155 MB/s ∼100% +101%
MSI GT72VR 6RE-015US
 
135.3 MB/s ∼87% +76%
Acer Predator 17 G9-793-77LG
 
78 MB/s ∼50% +1%
Nexoc G734III
 
77 MB/s ∼50%
Asus G752VS-XB78K
 
76 MB/s ∼49% -1%
maximum AS SSD Seq Read Test (1GB)
MSI GT73VR-6RE16SR451
 
196 MB/s ∼100% +128%
MSI GT72VR 6RE-015US
 
186.3 MB/s ∼95% +117%
Acer Predator 17 G9-793-77LG
 
88 MB/s ∼45% +2%
Asus G752VS-XB78K
 
86 MB/s ∼44% 0%
Nexoc G734III
 
86 MB/s ∼44%

Communication

For connection to the web, the manufacturer incorporates a Wi-Fi module and a Gigabit Ethernet controller. The used Intel Dual Band Wireless-AC 8260 (2x2) features a maximum gross throughput of 867 Mbps. We measured up to 450 Mbps in sending and up to 575 Mbps in receiving in a one-meter distance to our router.

Wired connections are possible via RJ45 port and Realtek RTL8168/8111 PCI-E chip with a maximum gross transfer rate of 1000 Mbps.

Networking
iperf Server (receive) TCP 1 m
MSI GT73VR-6RE16SR451
Killer Wireless-n/a/ac 1535 Wireless Network Adapter
601 MBit/s ∼100% +5%
Nexoc G734III
Intel Dual Band Wireless-AC 8260
575 MBit/s ∼96%
Asus G752VS-XB78K
Intel Dual Band Wireless-AC 8260
566 MBit/s ∼94% -2%
Acer Predator 17 G9-793-77LG
Killer Wireless-n/a/ac 1535 Wireless Network Adapter
322 MBit/s ∼54% -44%
iperf Client (transmit) TCP 1 m
Acer Predator 17 G9-793-77LG
Killer Wireless-n/a/ac 1535 Wireless Network Adapter
528 MBit/s ∼100% +17%
MSI GT73VR-6RE16SR451
Killer Wireless-n/a/ac 1535 Wireless Network Adapter
502 MBit/s ∼95% +12%
Asus G752VS-XB78K
Intel Dual Band Wireless-AC 8260
465 MBit/s ∼88% +3%
Nexoc G734III
Intel Dual Band Wireless-AC 8260
450 MBit/s ∼85%

Security

Gaming notebooks can also be equipped with security features. There is a fingerprint reader directly at the touchpad. In addition, a Kensington lock allows physical protection of the device against theft.

Accessories

Apart from an extensive user guide and a driver DVD, there are replacement screws, a cleaning cloth and cooling pads for additional storage devices in the box. The icing on the cake is the external DVD burner from LG.

Maintenance

As already mentioned in the section "case", several screws have to be loosened for maintenance. After removing the bottom panel, you gain access to almost all components. For example, you can easily replace the RAM modules and the Wi-Fi adapter and you can reach the fans for cleaning. Great: a free 2.5-inch bay allows adding a second drive.

Good maintainabilty after removing the bottom panel
Good maintainabilty after removing the bottom panel

Warranty

The manufacturer's warranty is 24 months and can be extended to 36 months (+68 Euros, ~$75). As so often, a different warranty applies to the battery. Nexoc grants a 12-months warranty for it.

Input Devices

Keyboard

The used chiclet keyboard almost exactly meets the expectations for a gaming keyboard. All keys feature a sufficiently long and soft travel and a comfortable pressure point. Touch typists can enjoy writing on it. Only the number block and the direction keys are a bit small, which is not troublesome after a short adaption time. The 3-zone light is an optical highlight. You can adapt the brightness in three levels and you can also specify the color in a preinstalled tool (Flexikey).

While the typing noise could be a bit more muffled, it remains pleasant overall.

Touchpad

At a size of 10.3 x 6.3 cm, the touchpad is sufficiently big. The relatively smooth surface texture makes for fast and precise inputs. Scrolling in web pages also works flawlessly. Inputs are triggered accurately at the upper edges and corners, while response to finger movements might be delayed in the front part.

Two dedicated mouse buttons sit in front of the touchpad. Both of them feature a long and consistent travel. The generated clicking noise is muffled and very quiet.

Color adjustment
Color adjustment
Define macros with sofware
Define macros with sofware
Show often used keys
Show often used keys
Decent input devices
Decent input devices

Display

Slight backlight bleeding
Slight backlight bleeding
Subpixel
Subpixel

The display of the test model stems from LG. The matte LP173WF4-SPD1 panel features Full HD resolution and a 60 Hz refresh rate. In addition, Nvidia's G-Sync is supported.

The measured average brightness of 308 cd/m² is more or less on par with the competition. However, we have detected a slight backlight bleeding in the upper part. Those who want more than 60 Hz might be satisfied with the 120 Hz display of the MSI GT72VR.

307
cd/m²
318
cd/m²
316
cd/m²
310
cd/m²
314
cd/m²
317
cd/m²
294
cd/m²
304
cd/m²
296
cd/m²
Distribution of brightness
LG Philips LP173WF4-SPD1 (LGD046C)
X-Rite i1Pro 2
Maximum: 318 cd/m² Average: 308.4 cd/m² Minimum: 8 cd/m²
Brightness Distribution: 92 %
Center on Battery: 314 cd/m²
Contrast: 1121:1 (Black: 0.28 cd/m²)
ΔE Color 4.17 | 0.6-29.43 Ø6
ΔE Greyscale 3.84 | 0.64-98 Ø6.2
86% sRGB (Argyll 3D) 56% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.41
Nexoc G734III
LG Philips LP173WF4-SPD1 (LGD046C), 1920x1080
MSI GT73VR-6RE16SR451
N173HHE-G32 (CMN1747), 1920x1080
MSI GT72VR 6RE-015US
LG Philips LGD046E, 1920x1080
Asus G752VS-XB78K
LG Philips LP173WF4-SPF3 (LGD04E8), 1920x1080
Acer Predator 17 G9-793-77LG
AU Optronics B173ZAN01.0 (AUO109B), 3840x2160
Response Times
49%
-3%
-1%
-4%
Response Time Grey 50% / Grey 80% *
36 (14, 22)
26 (12, 14)
28%
34.4 (15.6, 18.8)
4%
38 (14, 24)
-6%
37 (13, 24)
-3%
Response Time Black / White *
23 (5, 18)
6.8 (4.2, 2.6)
70%
25.2 (4.8, 20.4)
-10%
22 (4, 18)
4%
24 (5, 19)
-4%
PWM Frequency
50 (5)
Screen
-28%
4%
3%
13%
Brightness middle
314
314
0%
348.7
11%
328
4%
336
7%
Brightness
308
294
-5%
327
6%
317
3%
320
4%
Brightness Distribution
92
89
-3%
89
-3%
88
-4%
88
-4%
Black Level *
0.28
0.23
18%
0.323
-15%
0.3
-7%
0.25
11%
Contrast
1121
1365
22%
1080
-4%
1093
-2%
1344
20%
Colorchecker DeltaE2000 *
4.17
9.74
-134%
4.09
2%
3.74
10%
3.61
13%
Colorchecker DeltaE2000 max. *
8.94
15.71
-76%
9.02
-1%
8.97
-0%
6.02
33%
Greyscale DeltaE2000 *
3.84
9.58
-149%
2.14
44%
2.67
30%
4.78
-24%
Gamma
2.41 91%
2.5 88%
2.25 98%
2.41 91%
2.32 95%
CCT
6950 94%
11854 55%
6885 94%
6861 95%
6185 105%
Color Space (Percent of AdobeRGB 1998)
56
76
36%
56.9
2%
56
0%
88
57%
Color Space (Percent of sRGB)
86
100
16%
86.5
1%
85
-1%
100
16%
Total Average (Program / Settings)
11% / -15%
1% / 3%
1% / 3%
5% / 11%

* ... smaller is better

As usual for an IPS panel, colors and grayscales are quite good. CalMAN reports DeltaE values of just under 4. These deviations from the ideal can be slightly improved with calibration. After calibration, it is about 2 for the grayscales and just under 3 for the colors.

A contrast of 1120:1 makes for quite deep black (0.28 cd/m²). The competitors perform similarly. Only the MSI GT73VR and the Acer Predator 17 outperform the other notebooks with a contrast of above 1300:1.

But that's not all: The rivals from MSI and Acer achieve significantly higher color coverage than the other test models (100% sRGB). The Nexoc G734III only covers 86% of sRGB. It also falls behind in the AdobeRGB color space. However, these values are only interesting for professional use.

CalMAN: Grayscale
CalMAN: Grayscale
CalMAN: Grayscale (calibrated)
CalMAN: Grayscale (calibrated)
CalMAN: Saturation Sweeps
CalMAN: Saturation Sweeps
CalMAN: Saturation Sweeps (calibrated)
CalMAN: Saturation Sweeps (calibrated)
CalMAN: ColorChecker
CalMAN: ColorChecker
CalMAN: ColorChecker (calibrated)
CalMAN: ColorChecker (calibrated)
Nexoc G734III vs. sRGB (86%)
Nexoc G734III vs. sRGB (86%)
Nexoc G734III vs. AdobeRGB (56%)
Nexoc G734III vs. AdobeRGB (56%)

Due to its size and weight, the Nexoc G734III might be quite seldom used outdoors. If you want to do so anyway, you should look for a place in the shade. Despite decent brightness, the display can appear slightly dark in direct or indirect sunlight.

In the shade and...
In the shade and...
...in direct sunlight,...
...in direct sunlight,...
...even outdoor use...
...even outdoor use...
...is possible.
...is possible.

Since it is an IPS panel, colors and brightness are almost independent of the viewing angle. Use on the lap is possible. However, the maximum opening angle of 120 ° could be slightly bigger.

Viewing angles
Viewing angles

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
23 ms ... rise ↗ and fall ↘ combined↗ 5 ms rise
↘ 18 ms fall
The screen shows good response rates in our tests, but may be too slow for competitive gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 30 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (24.9 ms).
       Response Time 50% Grey to 80% Grey
36 ms ... rise ↗ and fall ↘ combined↗ 14 ms rise
↘ 22 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 30 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (39.7 ms).

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 50 Hz ≤ 5 % brightness setting

The display backlight flickers at 50 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 5 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 50 Hz is very low, so the flickering may cause eyestrain and headaches after extended use.

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9352 (minimum: 43 - maximum: 142900) Hz was measured.

Performance

Overclocking tool
Overclocking tool
LatencyMon
LatencyMon
Control Center
Control Center

A gaming notebook requires high performance. Hence, the Nexoc G734III uses cutting-edge technology. The biggest reason to buy it is Nvidia's brand new GeForce GTX 1070, which belongs to the top performance class. In addition, 32 GB DDR4 RAM and a Skylake CPU from Intel make for a balanced bundle, which meets almost all software requirements.

Processor

An Intel Core i7-6700HQ with four cores, eight threads, and a clock rate of 2600 MHz is used as processor. Thanks to Turbo Boost, the clock rate can increase to up to 3500 MHz (4 cores: maximum 3.1 GHz). The 14 nm model belongs to the upper class of notebook CPUs and can also cope with demanding software without problems.

Let's turn to the actual performance and compare it with the competition. With 677 points in Cinebench R15, the G734III is almost on par with the MSI GT72VR, which comes with the same processor, in the multi core test. The results are as expected when compared to other 6700HQ notebooks. They even remain constant after several runs, since the maximum clock of 3.1 GHz (four cores) can be kept up. However, the Nexoc G734III falls behind laptops with Core i7-6820HK. The Asus ROG G752VS (789 points) and the MSI GT73VR (860 points) show a great game here thanks to additional overclocking.

Finally, we want to check the performance on battery. Already a glance at the maximum clock of 1.66 GHz lets us expect a poor result. Cinebench R15 reports 356 points, which is more than 300 points lower than in mains operation.

Please check our benchmark list for further information about various processors.

Single-core rendering
Single-core rendering
Multi-core rendering
Multi-core rendering
CPU & GPU stress
CPU & GPU stress
Cinebench R15
CPU Single 64Bit
Asus G752VS-XB78K
Intel Core i7-6820HK
160 Points ∼100% +13%
MSI GT73VR-6RE16SR451
Intel Core i7-6820HK
158 Points ∼99% +12%
Acer Predator 17 G9-793-77LG
Intel Core i7-6700HQ
141 Points ∼88% 0%
Nexoc G734III
Intel Core i7-6700HQ
141 Points ∼88%
MSI GT72VR 6RE-015US
Intel Core i7-6700HQ
130 Points ∼81% -8%
CPU Multi 64Bit
MSI GT73VR-6RE16SR451
Intel Core i7-6820HK
860 Points ∼100% +27%
Asus G752VS-XB78K
Intel Core i7-6820HK
789 Points ∼92% +17%
Nexoc G734III
Intel Core i7-6700HQ
677 Points ∼79%
MSI GT72VR 6RE-015US
Intel Core i7-6700HQ
671 Points ∼78% -1%
Acer Predator 17 G9-793-77LG
Intel Core i7-6700HQ
656 Points ∼76% -3%
Cinebench R11.5
CPU Single 64Bit
MSI GT73VR-6RE16SR451
Intel Core i7-6820HK
1.78 Points ∼100% +10%
Asus G752VS-XB78K
Intel Core i7-6820HK
1.77 Points ∼99% +9%
Nexoc G734III
Intel Core i7-6700HQ
1.62 Points ∼91%
MSI GT72VR 6RE-015US
Intel Core i7-6700HQ
1.5 Points ∼84% -7%
CPU Multi 64Bit
MSI GT73VR-6RE16SR451
Intel Core i7-6820HK
9.53 Points ∼100% +29%
Asus G752VS-XB78K
Intel Core i7-6820HK
8.63 Points ∼91% +17%
MSI GT72VR 6RE-015US
Intel Core i7-6700HQ
7.38 Points ∼77% 0%
Nexoc G734III
Intel Core i7-6700HQ
7.37 Points ∼77%
Cinebench R11.5 CPU Single 64Bit
1.62 Points
Cinebench R11.5 CPU Multi 64Bit
7.37 Points
Cinebench R11.5 OpenGL 64Bit
62.51 fps
Cinebench R15 CPU Single 64Bit
141 Points
Cinebench R15 CPU Multi 64Bit
677 Points
Cinebench R15 OpenGL 64Bit
102.5 fps
Cinebench R15 Ref. Match 64Bit
99.6 %
Help

System Performance

PCMark 7
PCMark 7

The Nexoc G734III not only convinces with a fast SSD storage device but also with sufficient CPU performance and a big RAM capacity. In short, working with the 17-incher is fun. PCMark 8 confirms this subjective impression. Among our comparison group, the test configuration is only unable to win against devices with more powerful CPUs.

PCMark 8
Work Score Accelerated v2
Asus G752VS-XB78K
GeForce GTX 1070 (Laptop), 6820HK, Toshiba NVMe THNSN5512GPU7
5778 Points ∼100% +15%
MSI GT73VR-6RE16SR451
GeForce GTX 1070 (Laptop), 6820HK, 2x Samsung SM951 MZVPV256HDGL (RAID 0)
5186 Points ∼90% +3%
MSI GT72VR 6RE-015US
GeForce GTX 1070 (Laptop), 6700HQ, SanDisk SD8SNAT256G1122
5095 Points ∼88% +2%
Nexoc G734III
GeForce GTX 1070 (Laptop), 6700HQ, Samsung SM951 MZVPV256HDGL m.2 PCI-e
5011 Points ∼87%
Home Score Accelerated v2
Asus G752VS-XB78K
GeForce GTX 1070 (Laptop), 6820HK, Toshiba NVMe THNSN5512GPU7
5575 Points ∼100% +33%
MSI GT73VR-6RE16SR451
GeForce GTX 1070 (Laptop), 6820HK, 2x Samsung SM951 MZVPV256HDGL (RAID 0)
5034 Points ∼90% +20%
MSI GT72VR 6RE-015US
GeForce GTX 1070 (Laptop), 6700HQ, SanDisk SD8SNAT256G1122
4620 Points ∼83% +11%
Nexoc G734III
GeForce GTX 1070 (Laptop), 6700HQ, Samsung SM951 MZVPV256HDGL m.2 PCI-e
4180 Points ∼75%
Acer Predator 17 G9-793-77LG
GeForce GTX 1070 (Laptop), 6700HQ, Toshiba NVMe THNSN5256GPU7
4060 Points ∼73% -3%
PCMark 7 Score
5233 points
PCMark 8 Home Score Accelerated v2
4180 points
PCMark 8 Creative Score Accelerated v2
5262 points
PCMark 8 Work Score Accelerated v2
5011 points
Help

Storage Devices

CrystalDiskMark: internal SSD
CrystalDiskMark: internal SSD
CrystalDiskMark: internal HDD
CrystalDiskMark: internal HDD

Nexoc wants to use the advantages of both technologies and has equipped our test model with two storage devices. On the one hand, there is a fast 256 GB SSD for the operating system and important programs, which should make for short loading and response times. On the other hand, a 1 TB HDD provides enough storage space for other data.

We have tested the performance of the storage devices with CrystalDiskMark. Samsung's m.2 model SM951, which is connected via PCIe, shines with sequential read rates of 1917 MB/s and the write rate of 1283 MB/s is also very good. Only the MSI GT73VR can exceed these values thanks to a RAID 0 system. While the MSI GT72VR also comes with a Solid State Drive, it is not driven via PCIe. Hence its transfer rates are significantly lower.

The system features an HDD from Seagate as secondary storage device. The 1 TB 2.5-inch drive communicates via a SATA III connection and achieves quite decent sequential read and write rates at just under 130 MB/s.

Those who require even more storage space can add a storage device thanks to a free 2.5-inch bay. In our benchmark table you can find comparisons of HDDs and SSDs.

Nexoc G734III
Samsung SM951 MZVPV256HDGL m.2 PCI-e
MSI GT73VR-6RE16SR451
2x Samsung SM951 MZVPV256HDGL (RAID 0)
MSI GT72VR 6RE-015US
SanDisk SD8SNAT256G1122
Asus G752VS-XB78K
Toshiba NVMe THNSN5512GPU7
CrystalDiskMark 3.0
53%
-61%
16%
Write 4k QD32
382.4
526.9
38%
236.9
-38%
578
51%
Read 4k QD32
603
627.4
4%
147.5
-76%
743.9
23%
Write 4k
142.06
153.1
8%
99.36
-30%
154.4
9%
Read 4k
51.03
52.15
2%
23.1
-55%
44.42
-13%
Write 512
1199
2327
94%
319.2
-73%
1438
20%
Read 512
870.6
1775
104%
288.9
-67%
1250
44%
Write Seq
1283
2560
100%
338.5
-74%
1305
2%
Read Seq
1917
3285
71%
529
-72%
1718
-10%
Samsung SM951 MZVPV256HDGL m.2 PCI-e
Sequential Read: 1917 MB/s
Sequential Write: 1283 MB/s
512K Read: 870.6 MB/s
512K Write: 1199 MB/s
4K Read: 51.03 MB/s
4K Write: 142.06 MB/s
4K QD32 Read: 603 MB/s
4K QD32 Write: 382.4 MB/s

Graphics Card

Cloud Gate
Cloud Gate
Time Spy
Time Spy
Fire Strike
Fire Strike
Temperatures and clock rates during 3DMark
Temperatures and clock rates during 3DMark

The GeForce GTX 1070 is Nvidia's second-fastest graphics chip of the new Pascal generation and belongs to the high-end range. With a VRAM capacity of 8 GB and a core clock between 1443 and 1645 MHz (Boost), current games are supposed to always achieve smooth frame rates in Full HD resolution.

We have tested the recently published DirectX 12 GPU with several 3DMark benchmarks. According to versions 11 and 13, the performance of our test model ranks in (lower) mid-range among GTX 1070 notebooks. Several competitors (e.g. the Asus G752VS and the MSI GT73VR) perform better due to their factory OC. In addition, it is noteworthy that graphics performance falls heavily on battery. The system only achieves 40% of the points in 3DMark 11 and even only 33% of the Graphics Score.

Extensive benchmarks for desktop and notebook chips are available in our graphics card list.

3DMark
2560x1440 Time Spy Graphics
MSI GT73VR-6RE16SR451
NVIDIA GeForce GTX 1070 (Laptop)
5554 Points ∼100% +6%
Asus G752VS-XB78K
NVIDIA GeForce GTX 1070 (Laptop)
5303 Points ∼95% +1%
Nexoc G734III
NVIDIA GeForce GTX 1070 (Laptop)
5233 Points ∼94%
1920x1080 Fire Strike Graphics
MSI GT73VR-6RE16SR451
NVIDIA GeForce GTX 1070 (Laptop)
17498 Points ∼100% +8%
MSI GT72VR 6RE-015US
NVIDIA GeForce GTX 1070 (Laptop)
17354 Points ∼99% +7%
Asus G752VS-XB78K
NVIDIA GeForce GTX 1070 (Laptop)
16757 Points ∼96% +3%
Nexoc G734III
NVIDIA GeForce GTX 1070 (Laptop)
16219 Points ∼93%
Acer Predator 17 G9-793-77LG
NVIDIA GeForce GTX 1070 (Laptop)
15718 Points ∼90% -3%
3DMark 11 - 1280x720 Performance GPU
MSI GT73VR-6RE16SR451
NVIDIA GeForce GTX 1070 (Laptop)
23586 Points ∼100% +13%
Asus G752VS-XB78K
NVIDIA GeForce GTX 1070 (Laptop)
22282 Points ∼94% +7%
Acer Predator 17 G9-793-77LG
NVIDIA GeForce GTX 1070 (Laptop)
21228 Points ∼90% +2%
Nexoc G734III
NVIDIA GeForce GTX 1070 (Laptop)
20881 Points ∼89%
MSI GT72VR 6RE-015US
NVIDIA GeForce GTX 1070 (Laptop)
13760 Points ∼58% -34%
3DMark 11 Performance
15486 points
3DMark Ice Storm Standard Score
85380 points
3DMark Cloud Gate Standard Score
22639 points
3DMark Fire Strike Score
12458 points
3DMark Time Spy Score
4990 points
Help

Gaming Performance

Certainly, gaming performance is most important. We have used three titles for testing. As long as you do not connect a UHD display, the GeForce GTX 1070 delivers enough performance for running current graphics-intensive games such as Doom or The Witcher 3 at maximum settings. The frame rate will only fall under 50 fps in a few games at the native resolution of 1920x1080 pixels.

Please refer to our gaming list for further gaming benchmarks of the GeForce GTX 1070.

The Witcher 3 - 1920x1080 Ultra Graphics & Postprocessing (HBAO+)
Acer Predator 17 G9-793-77LG
GeForce GTX 1070 (Laptop), 6700HQ
58 fps ∼100% +9%
Asus G752VS-XB78K
GeForce GTX 1070 (Laptop), 6820HK
57 (min: 47, max: 64) fps ∼98% +7%
Nexoc G734III
GeForce GTX 1070 (Laptop), 6700HQ
53.2 fps ∼92%
Doom - 1920x1080 Ultra Preset AA:SM
Nexoc G734III
GeForce GTX 1070 (Laptop), 6700HQ
119.7 fps ∼100%
MSI GT72VR 6RE-015US
GeForce GTX 1070 (Laptop), 6700HQ
101.6 fps ∼85% -15%
BioShock Infinite - 1920x1080 Ultra Preset, DX11 (DDOF)
Asus G752VS-XB78K
GeForce GTX 1070 (Laptop), 6820HK
137.1 (min: 34.5, max: 271.3) fps ∼100% +12%
MSI GT72VR 6RE-015US
GeForce GTX 1070 (Laptop), 6700HQ
129.5 fps ∼94% +6%
Nexoc G734III
GeForce GTX 1070 (Laptop), 6700HQ
122 fps ∼89%
low med. high ultra
BioShock Infinite (2013) 194178.8152.6122fps
The Witcher 3 (2015) 20315798.153.2fps
Doom (2016) 149142127119.7fps

Emissions

System Noise

Even when idling, the CPU fan stays always active. The two CPU fans partly turn themselves off. However, the average noise level of 32 dB(A) is acceptable and normal when compared to the competition. The used HDD is hardly audible and you can only hear a quiet "clicking" noise when it is used, which, however, is quieter than the fan noise.

Under load the noise of the 17-incher increases to up to 50 dB(A), which can be disturbing due to the high frequency. Moreover, the cooling is always audible during our benchmarks. In addition, the fans take quite a long time to slow down after a stress period. Overall, the Nexoc G734III is too loud during 3D tasks (for a gaming notebook), which is due to the quite slim case. Moreover, there is room for improving the fan control in view of the temperatures.

System noise idle
System noise idle
System noise load
System noise load
Noise characteristics of the speaker
Noise characteristics of the speaker

Noise Level

Idle
31 / 32 / 33 dB(A)
Load
49 / 50 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 dB(A)
Nexoc G734III
GeForce GTX 1070 (Laptop), 6700HQ
MSI GT73VR-6RE16SR451
GeForce GTX 1070 (Laptop), 6820HK
MSI GT72VR 6RE-015US
GeForce GTX 1070 (Laptop), 6700HQ
Asus G752VS-XB78K
GeForce GTX 1070 (Laptop), 6820HK
Acer Predator 17 G9-793-77LG
GeForce GTX 1070 (Laptop), 6700HQ
Noise
3%
3%
4%
-4%
off / environment *
30
30
-0%
28.9
4%
30
-0%
31
-3%
Idle Minimum *
31
32
-3%
32.4
-5%
31
-0%
33
-6%
Idle Average *
32
33
-3%
32.4
-1%
32
-0%
34
-6%
Idle Maximum *
33
35
-6%
32.4
2%
33
-0%
40
-21%
Load Average *
49
35
29%
39.4
20%
40
18%
44
10%
Load Maximum *
50
49
2%
52
-4%
47
6%
50
-0%

* ... smaller is better

Temperature

When idling, the Nexoc G734III only gets slightly warmer with surface temperatures under 30 °C. First heavier load can cause uncomfortably hot temperatures of up to 61 °C. The power adapter also gets notably warm (max. 47 °C). Hence, the laptop should not be covered by pillows or blankets.

We check the temperatures of the inner components by running Prime95 and FurMark. The CPU can no longer use its full Turbo after less than a minute. However, about 2.8 GHz cannot be criticized. We are not that happy with the core temperature of up to 91 °C. The GPU even slightly throttles under full load. The maximum core temperature is 80 °C according to HWMonitor. Although the test model cannot impress with its full performance in such extreme scenarios, it is still willing to work hard.

We run 3DMark 11 immediately after the stress test, in order to see whether the generated heat has an impact on the performance. However, the points are equivalent to the cold run's.

Stress test: CPU behavior
Stress test: CPU behavior
Stress test: GPU behavior
Stress test: GPU behavior
Throttling of the GPU can be identified
Throttling of the GPU can be identified
Full load: components
Full load: components
Full load: top side of the chassis (Optris PI 640)
Full load: top side of the chassis (Optris PI 640)
Full load: underside of the chassis (Optris PI 640)
Full load: underside of the chassis (Optris PI 640)
Max. Load
 49.2 °C
121 F
48.7 °C
120 F
45.4 °C
114 F
 
 50 °C
122 F
49.3 °C
121 F
39.1 °C
102 F
 
 31.6 °C
89 F
33.6 °C
92 F
33 °C
91 F
 
Maximum: 50 °C = 122 F
Average: 42.2 °C = 108 F
40.8 °C
105 F
47.2 °C
117 F
60.5 °C
141 F
37.1 °C
99 F
47.1 °C
117 F
52.1 °C
126 F
33.6 °C
92 F
38.2 °C
101 F
37.7 °C
100 F
Maximum: 60.5 °C = 141 F
Average: 43.8 °C = 111 F
Power Supply (max.)  46.8 °C = 116 F | Room Temperature 24 °C = 75 F | Voltcraft IR-900
(-) The average temperature for the upper side under maximal load is 42.2 °C / 108 F, compared to the average of 33.2 °C / 92 F for the devices in the class Gaming.
(-) The maximum temperature on the upper side is 50 °C / 122 F, compared to the average of 39.6 °C / 103 F, ranging from 21.6 to 68.8 °C for the class Gaming.
(-) The bottom heats up to a maximum of 60.5 °C / 141 F, compared to the average of 42.2 °C / 108 F
(+) In idle usage, the average temperature for the upper side is 27.1 °C / 81 F, compared to the device average of 33.2 °C / 92 F.
(+) The palmrests and touchpad are reaching skin temperature as a maximum (33.6 °C / 92.5 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 28.8 °C / 83.8 F (-4.8 °C / -8.7 F).
Nexoc G734III
GeForce GTX 1070 (Laptop), 6700HQ
MSI GT73VR-6RE16SR451
GeForce GTX 1070 (Laptop), 6820HK
MSI GT72VR 6RE-015US
GeForce GTX 1070 (Laptop), 6700HQ
Asus G752VS-XB78K
GeForce GTX 1070 (Laptop), 6820HK
Acer Predator 17 G9-793-77LG
GeForce GTX 1070 (Laptop), 6700HQ
Heat
-4%
5%
7%
5%
Maximum Upper Side *
50
44.9
10%
40.6
19%
42.9
14%
42.6
15%
Maximum Bottom *
60.5
51.2
15%
59.4
2%
41.5
31%
44.9
26%
Idle Upper Side *
29.1
32.7
-12%
28.2
3%
31.6
-9%
33.1
-14%
Idle Bottom *
26.9
34.2
-27%
27.8
-3%
29.5
-10%
28.9
-7%

* ... smaller is better

Speakers

Fine tuning and profiles in the sound manager
Fine tuning and profiles in the sound manager

The used Onkyo speakers generate a passable frequency coverage. The test model only performs notably weak at low tones (bass). As you can see in the audio analysis, the trend is quite constant from the mid-tones. In our opinion, the speakers are sufficient for occasional film or TV serial evenings. However, a slightly higher volume would be nice.

The Sound Blaster X-Fi MB5 software allows fine tuning the sound or adjusting it for certain scenarios. It delivers various profiles, an equalizer, and further features.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2042.842.82534.636.13131.529.34042.833.95040346333.231.88035.632.510031.828.312530.124.216037.824.220056.223.525060.421.73155820.54006119.550068.419.263065.719.180059.119.510006120.5125061.818.7160062.71920006418.4250063.418.131506318.2400058.418.2500061.418.1630062.118.2800058.618.21000059.518.31250058.118.11600057.818.4SPL74.431N36.11.5median 60.4median 19Delta4.41.740.239.235.334.327.529.736.437.333.134.628.634.428.74627.951.523.255.622.557.423.462.12163.520.96320.366.919.565.118.965.918.967.61969.418.164.417.962.217.7651870.41873.51872.417.972.417.772.517.67517.76517.653.317.636.630.582.41.456.7median 18.1median 652.15.441.14037.635.430.730.134.136.228.430.129.2302932.427.635.525.340.323.147.322.154.920.858.819.658.918.7651962.317.665.917.669.817.362.517.157.617.257.317.362.51767.617.167.517.265.717.358.817.452.717.444.917.345.417.240.117.238.829.776.11.336median 17.4median 58.81.89hearing rangehide median Pink NoiseNexoc G734IIIMSI GT73VR-6RE16SR451Asus G752VS-XB78K
Nexoc G734III audio analysis

(±) | speaker loudness is average but good (74 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 14.7% lower than median
(-) | bass is not linear (15.4% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.9% away from median
(±) | linearity of mids is average (7.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.9% away from median
(+) | highs are linear (4.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (13.6% difference to median)
Compared to same class
» 25% of all tested devices in this class were better, 7% similar, 67% worse
» The best had a delta of 6%, average was 17%, worst was 37%
Compared to all devices tested
» 10% of all tested devices were better, 3% similar, 87% worse
» The best had a delta of 3%, average was 21%, worst was 53%

MSI GT73VR-6RE16SR451 audio analysis

(+) | speakers can play relatively loud (82 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 6.2% lower than median
(+) | bass is linear (6.4% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.6% away from median
(+) | mids are linear (5.3% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 6.6% higher than median
(+) | highs are linear (6.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (12.7% difference to median)
Compared to same class
» 18% of all tested devices in this class were better, 6% similar, 76% worse
» The best had a delta of 6%, average was 17%, worst was 37%
Compared to all devices tested
» 7% of all tested devices were better, 2% similar, 90% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Asus G752VS-XB78K audio analysis

(±) | speaker loudness is average but good (76 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 9.6% lower than median
(±) | linearity of bass is average (10.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.7% away from median
(±) | linearity of mids is average (10.3% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | reduced highs - on average 8.3% lower than median
(±) | linearity of highs is average (9.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (20.1% difference to median)
Compared to same class
» 67% of all tested devices in this class were better, 8% similar, 25% worse
» The best had a delta of 6%, average was 17%, worst was 37%
Compared to all devices tested
» 43% of all tested devices were better, 8% similar, 49% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Frequency diagram in comparison (check boxes above can be turned on/off!)

Energy Management

Power Consumption

It is known that high performance requires much energy. Thanks to the Optimus technology, the 17-incher is not too power hungry when idling with 13 to 27 Watt. For example, the MSI GT72VR requires between 22 and 30 Watt. The other notebooks even have significantly higher power consumptions.

Under load, the test model needs between 90 and 210 Watt, which is about on par with the competition.

If the power adapter can actually provide the specified performance of 230 Watt, it even has reserves under full load.

Power Consumption
Off / Standbydarklight 0.4 / 1.1 Watt
Idledarkmidlight 13 / 20 / 27 Watt
Load midlight 90 / 210 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Nexoc G734III
GeForce GTX 1070 (Laptop), 6700HQ
MSI GT73VR-6RE16SR451
GeForce GTX 1070 (Laptop), 6820HK
MSI GT72VR 6RE-015US
GeForce GTX 1070 (Laptop), 6700HQ
Asus G752VS-XB78K
GeForce GTX 1070 (Laptop), 6820HK
Acer Predator 17 G9-793-77LG
GeForce GTX 1070 (Laptop), 6700HQ
Power Consumption
-57%
-37%
-35%
-51%
Idle Minimum *
13
31
-138%
22.3
-72%
24
-85%
25
-92%
Idle Average *
20
35
-75%
27.3
-37%
31
-55%
35
-75%
Idle Maximum *
27
40
-48%
30
-11%
36
-33%
46
-70%
Load Average *
90
106
-18%
152.2
-69%
94
-4%
103
-14%
Load Maximum *
210
218
-4%
204.2
3%
204
3%
223
-6%

* ... smaller is better

Battery Life

Linear discharge curve
Linear discharge curve
A full charge takes above two hours.
A full charge takes above two hours.

Nexoc incorporated a lithium-ion battery rated at 60 Wh in the G734III. We determined the battery runtimes of the 17-inch notebook with several tests.

The first question is how long the maximum battery life is. For this purpose, we use the energy-saving mode from Windows, set the brightness to minimum and run the reading script. The laptop shuts down after slightly more than 6.5 hours. This is at least one hour longer than the competitors.

In the realistic Wi-Fi test, which simulates Internet surfing with medium brightness (~150 cd/m²), the devices lasts about 30 minutes shorter than the competitors. We only measured 3 hours.

Finally, we want to figure out the minimum runtime. We start the Classic test of the Battery Eater tool with maximum brightness and Windows profile maximum performance. Just as the other laptops in our comparison group, the Nexoc achieves about 1.5 h.

Battery Runtime
Idle (without WLAN, min brightness)
6h 40min
NBC WiFi Websurfing Battery Test 1.3 (Edge 25.10586.0.0)
2h 57min
Big Buck Bunny H.264 1080p
3h 28min
Load (maximum brightness)
1h 35min
Nexoc G734III
60 Wh
MSI GT73VR-6RE16SR451
75.2 Wh
MSI GT72VR 6RE-015US
83 Wh
Asus G752VS-XB78K
90 Wh
Acer Predator 17 G9-793-77LG
88 Wh
Battery Runtime
-12%
-0%
-7%
-8%
Reader / Idle
400
290
-27%
322
-19%
311
-22%
278
-30%
H.264
208
186
-11%
WiFi v1.3
177
206
16%
224
27%
210
19%
200
13%
Load
95
72
-24%
86
-9%
84
-12%
89
-6%

Pros

+ configurable keyboard light
+ good maintainability
+ decent input devices
+ high-end case
+ G-Sync

Cons

- high frequency and erratic fans
- modest battery life
- no Thunderbolt

Verdict

In review: Nexoc G734III. Test model provided by Nexoc.
In review: Nexoc G734III. Test model provided by Nexoc.

Apart from small flaws, the Nexoc G734III (Clevo P670RS-G) is indeed convincing. The high-end case scores points with good build quality and relatively low height. Overall, the 17-incher cannot shine with portability, but it is easier to carry around than other high-end laptops. Unfortunately, maintenance hatches are missing, which could make for fast access to the inner components. Meanwhile, we liked the backlit keyboard and the touchpad.

Another pro is the matte and contrast-rich IPS display with G-Sync support. The GeForce GTX 1070 can usually easily cope with 1920x1080 pixels. The Pascal model first reaches its limit in the 4K range from 3840x2160 pixels. Thanks to the cutting-edge graphics cards, most games run smoothly with maximum settings.

However, we found the high frequency fan noise annoying, which can be dampened by using a headset or turning up the speakers loudly. The temperature increase could be better, too. Finally, the battery life is quite modest despite graphics switch.

Otherwise, the Nexoc G734III meets all requirements for a gaming notebook.

Those who have an even higher budget and want a better heat removal system should definitely consider the MSI GT73VR or GT72VR, the Acer Predator 17 or the Asus G752VS.

Nexoc G734III - 09/11/2016 v5.1(old)
Nino Ricchizzi

Chassis
79 / 98 → 81%
Keyboard
81%
Pointing Device
83%
Connectivity
68 / 81 → 84%
Weight
54 / 10-66 → 79%
Battery
70%
Display
88%
Games Performance
93%
Application Performance
91%
Temperature
80 / 95 → 84%
Noise
70 / 90 → 78%
Audio
70%
Camera
55 / 85 → 65%
Average
76%
84%
Gaming - Weighted Average

Pricecompare

Read all 2 comments / answer
static version load dynamic
Loading Comments
Comment on this article
Please share our article, every link counts!
> Notebook / Laptop Reviews and News > Reviews > Nexoc G734III (Clevo P670RS-G) Notebook Review
Nino Ricchizzi, 2016-09-16 (Update: 2018-05-15)