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Comparison Dell Inspiron 15 7577 [7577-5250] vs Acer Predator Helios 300 PH317-51 [PH317-51-775P]

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Dell Inspiron 15 7577 (7577-5250)
Acer Predator Helios 300 PH317-51 (PH317-51-775P)
Dell Inspiron 15 7577 [7577-5250]Acer Predator Helios 300 PH317-51 [PH317-51-775P]
Outdated ProductOutdated Product
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Typelaptoplaptop
Screen
Screen size15.6 "17.3 "
Screen typeIPSIPS
Surface treatmentanti-glarematte
Screen resolution1920x1080 (16:9)1920x1080 (16:9)
Refresh rate60 Hz60 Hz
Brightness220 nit300 nit
Contrast840 :1770 :1
CPU
SeriesCore i7Core i7
Model7700HQ7700HQ
Processor cores44
CPU speed2.8 GHz2.8 GHz
TurboBoost / TurboCore frequency3.8 GHz3.8 GHz
L2 cache1024 KB1024 KB
L3 cache6 MB6 MB
3DMark067686 score(s)7726 score(s)
Passmark CPU Mark8909 score(s)8962 score(s)
SuperPI 1M10 sec10.05 sec
RAM
RAM16 GB16 GB
Max. RAM32 GB32 GB
RAM typeDDR4DDR4
RAM speed2400 MHz2400 MHz
Slots22
Graphics card
Graphics card typededicateddedicated
Graphics card seriesNVIDIA GeForceNVIDIA GeForce
Graphics card modelGTX 1060 Max-QGTX 1060
Video memory6 GB6 GB
Memory typeGDDR5GDDR5
VR
3DMark0625532 score(s)
3DMark Vantage P34127 score(s)
FPS in games
GTA 5 High Full HD81 fps90 fps
GTA 5 Ultra Full HD43 fps48 fps
GTA 5 Ultra 4K34 fps38 fps
Witcher 3 High Full HD65 fps68 fps
Witcher 3 Ultra Full HD35 fps38 fps
The Witcher 3 Ultra 4K23 fps25 fps
Storage
Drive typeHDD+SSDHDD+SSD
Drive capacity
1000 GB /HDD/
1000 GB /HDD/
HDD speed5400 rpm5400 rpm
2nd drive capacity
256 GB /SSD M.2/
128 GB /SSD/
Connections
Connection ports
HDMI
HDMI
Card reader
 /SD/MMC/
 /SD/
USB 2.02
USB 3.2 gen131 pc
USB C 3.2 gen11 pc
USB C 3.2 gen21 pc
Thunderbolt interfacev3 1 pcs
Alternate Mode
LAN (RJ-45)1 Gbps1 Gbps
Multimedia
Webcam1280x720 (HD)1280x720 (HD)
Camera shutter
Speakers
/Waves MaxxAudio Pro/
2
Security
fingerprint scanner /combined with power button/
kensington / Noble lock
 
kensington / Noble lock
Keyboard
Backlightredred
Key designisland typeisland type
Num block
Waterproof
Input devicetouchpadtouchpad
Battery
Battery capacity3220 mAh
Battery capacity56 W*h48 W*h
Battery voltage15.2 V
Number of battery cells44
Operating time7 h
Powered by USB-C (Power Delivery)
Fast charge
General
Preinstalled OSWindows 10 HomeWindows 10 Home
Materialaluminium / plasticaluminium / plastic
Dimensions (WxDxT)389x274.7x24.95 mm432.3x289.9x29 mm
Weight2.66 kg3 kg
Color
Added to E-Catalogdecember 2017september 2017

Screen size

Diagonal size of laptop display.

The larger the screen, the more convenient the laptop for watching high-definition movies, modern games, working with large-format graphic materials, etc. Large screens are especially important for multimedia and gaming models. On the other hand, the diagonal of the display directly affects the size and cost of the entire device. So if portability is key, it makes sense to pay attention to relatively small solutions; especially since most modern laptops have video outputs like HDMI or DisplayPort and allow connection of large-format external monitors.

In light of all this, the actual maximum for laptops these days is 17"(17.3"); however larger devices (18") reappeared at the beginning of 2023. The standard option for general purpose laptops is 15"(15.6"), less often 16", a diagonal of 13"(13.3") or 14" is considered small by the standards of such And smaller screens can be found mainly in specific compact varieties of laptops — ultrabooks, 2 in 1, transformers, netbooks; among such devices there are solutions for 12 ", 11" and even 10" or less.

Surface treatment

Glossy. A glossy surface improves the overall picture quality: other things being equal, the picture on such a screen looks brighter and more colorful than on a matte one. On the other hand, pollution is very noticeable on such a surface, and in bright external lighting, a lot of glare appears on it, which can greatly interfere with viewing. Therefore, instead of the classic gloss, laptops are increasingly using an anti-reflective version of such a coating (see below). Nevertheless, this option still does not lose popularity: it is somewhat cheaper than the “anti-glare”, and in soft, relatively dim lighting, it can even provide a more pleasing image to the eye.

Matte. Matte finish is inexpensive and does not form glare even from fairly bright lighting. On the other hand, the picture on such a screen is noticeably dimmer than on a similar glossy display. However, this moment can be compensated by various design solutions (primarily a good margin of brightness); so this option can be found in all categories of modern laptops — from low-cost models for working with documents to top gaming configurations.

Glossy (anti-glare). A variation on the glossy finish described above, designed to reduce glare from external light sources. Such screens really glare noticeably less than traditional glossy ones (or even do not give glare at all); at the same time, in...terms of image quality, they are at least superior to matte ones. So it is this type of coating that is most popular nowadays.

Brightness

The maximum brightness that a laptop screen can provide.

The brighter the ambient light, the brighter the laptop screen should be, otherwise the image on it may be difficult to read. And vice versa: in dim ambient light, high brightness is unnecessary — it greatly burdens the eyes (however, in this case, modern laptops provide brightness control). Thus, the higher this indicator, the more versatile the screen is, the wider the range of conditions in which it can be effectively used. The downside of these benefits is an increase in price and energy consumption.

As for specific values, many modern laptops have a brightness of 250 – 300 cd / m2 and even lower. This is quite enough for working under artificial lighting of medium intensity, but in bright natural light, visibility may already be a problem. For use in sunny weather (especially outdoors), it is desirable to have a brightness margin of at least 300 – 350 cd / m2. And in the most advanced models, this parameter can be 350 – 400 cd / m2 and even more.

Contrast

The contrast of the screen installed in the laptop.

Contrast is the largest difference in brightness between the lightest white and darkest black that can be achieved on a single screen. It is written as a fraction, for example, 560:1; while the larger the first number, the higher the contrast, the more advanced the screen is and the better the image quality can be achieved on it. This is especially noticeable with large differences in brightness within a single frame: with low contrast, individual details located in the darkest or brightest parts of the picture may be lost, increasing the contrast allows you to eliminate this phenomenon to a certain extent. The flip side of these benefits is an increase in cost.

Separately, we emphasize that in this case only static contrast is indicated — the difference provided within one frame in normal operation, at constant brightness and without the use of special technologies. For advertising purposes, some manufacturers may also provide data on the so-called dynamic contrast — it can be measured in very impressive numbers (seven-digit or more). However, you should focus primarily on static contrast — this is the basic characteristic of any display.

As for specific values, even in the most advanced screens, this indicator does not exceed 2000: 1. But in general, modern laptops have a rather low contrast ratio — it is assumed that for tasks that require more advanced image characteristics, it is more...reasonable to use an external screen (monitor or TV).

3DMark06

The result shown by the laptop processor in 3DMark06.

This test is primarily focused on testing performance in games — in particular, the ability of the processor to process advanced graphics and artificial intelligence elements. Test scores are reported as scores; the higher this number, the higher the performance of the tested chip. Good 3DMark06 results are especially important for gaming laptops.

Passmark CPU Mark

The result shown by the laptop processor in the Passmark CPU Mark test.

Passmark CPU Mark is a comprehensive test that is more detailed and reliable than the popular 3DMark06 (see above). It checks not only the gaming capabilities of the CPU, but also its performance in other modes, based on which it displays the overall score; this score can be used to fairly reliably evaluate the processor as a whole (the more points, the higher the performance).

SuperPI 1M

The result shown by the laptop processor in the SuperPI 1M test.

The essence of this test is to calculate the number "pi" to the millionth decimal place. The time spent on this calculation is the final result. Accordingly, the more powerful the processor, the smaller the result will be (this SuperPI 1M is fundamentally different from many other tests).

Graphics card model

GeForce graphics cards from NVIDIA: RTX represented by RTX 2060, RTX 2060 Max-Q, RTX 2070, RTX 2070 Max-Q, RTX 2070 Super, RTX 2070 Super Max-Q, RTX 2080, RTX 2080 Max-Q, RTX 2080 Super, RTX 2080 Super Max-Q, RTX 3050, RTX 3050 Ti, RTX 3060, RTX 3060 Max-Q, RTX 3070, RTX 3070 Max-Q, RTX 3070 Ti, RTX 3080, RTX 3080 Ti, RTX 4050, RTX 4060, R TX 4070, RTX 4080, RTX 4090 ; MX1xx represented by MX110, MX130 and MX150, MX2xx(MX230 and MX250), MX3xx(MX330 and MX350), MX450, GTX which represent GTX 1050, GTX 1060, GTX 1060 Max-Q, GTX 1070, GTX 1070 Max-Q, GTX 1080, GTX 1080 Max-Q, GTX 1650, GTX 1650 Max-Q, GTX 1650 Ti, GTX 1660 Ti, GTX 1660 Ti Max-Q and. AMD also offers video cards Radeon 520, Radeon 530(535), Radeon 540X, Radeon 610(625, 630), Radeon RX 550 (550X, 560), Radeon RX 640, Radeon RX 5500M, Radeon RX 6800M and Radeon Pro.

Note that all the above models are discrete. Actually, for a configuration with discrete graphics, it is the model of a separate video adapter that is indicated; if it is supplemented by an integrated module, the name of this module can be clarified by the official characteristics of the processor.

It is also worth mentioning that this paragraph does not give the full name of the model, but only its name within the series (the series itself is given separately - see above). However, knowing the series and model, one can easily find detailed information about the graphics card.

3DMark06

The result shown by the laptop's graphics card in 3DMark06.

This test primarily determines how well a graphics card handles intensive workloads, in particular, with detailed 3D graphics. The test result is indicated in points; the more points, the higher the performance of the video adapter. Good 3DMark06 scores are especially important for gaming laptops and advanced workstations. However, it is difficult to call them reliable, since measurements are made on video cards with different TDPs and an overall average score is given. Thus, your laptop can have either more or less than the specified result - it all depends on the TDP of the installed video card.
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