Side by side comparison and review of Alienware M15 R7 and Acer Predator Helios 300 (PH315-51). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of Alienware M15 R7 based on its technical characteristics, features, user experience, expert reviews and price level.
powerful gaming performance
high refresh rate display
customizable rgb lighting
advanced cooling system
robust build quality
heavy and bulky
short battery life
expensive price point
loud under load
| DESIGN AND DIMENSIONS | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.62 cm x 27.25 cm x 2.06 cm | 39 cm x 26.6 cm x 2.675 cm |
| Weight | 2.69 kg | 2.7 kg |
| Case Material | - | Anodised aluminium |
| Colour | Dark Side of the Moon | Obsidian black |
| DISPLAY | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Pixel Density (ppi) | 141 | - |
| V-Sync Rate at Max Res. | 165 Hz | 144 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:9 |
| Image Brightness | 300 cd/m² | 300 cd/m² |
| Colour Gamut | 100% sRGB | - |
| Features | Anti-glare, Wide Viewing Angle, 8 ms response rate, ±85° horizontal viewing angle, ±85° vertical viewing angle, 0.18 mm pixel pitch, 3ms response rate (Overdrive), Dell ComfortView Plus | Anti-glare, ComfyView, 7 ms response rate |
| PROCESSOR | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| CPU | Intel Core i7 (12th Gen) 12700H | Intel Core i5 (8th Gen) 8300H / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.7 GHz | 4 GHz |
| Number of Cores | 14-core | Quad-Core |
| Cache | 24 MB | 8 MB |
| 64-bit Computing | - | Yes |
| Chipset | - | Mobile Intel HM370 |
| Features | Intel Smart Cache, Intel Deep Learning Boost (DL Boost) | Intel Turbo Boost Technology 2.0 |
| MEMORY | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| RAM | 16 GB | 8 GB (2 x 4 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 32 GB |
| RAM Type | DDR5 SDRAM | DDR4 SDRAM |
| Speed | 4800 MHz | - |
| Rated Speed | 4800 MHz | - |
| Form Factor | SO-DIMM 262-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | - | 0 |
| STORAGE | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - NVM Express (NVMe) | 128 GB SSD - SK Hynix |
|---|---|---|
| Secondary Storage | - | 1 TB HDD SATA / 5400 rpm - HGST |
| AUDIO & VIDEO | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 3060 | NVIDIA GeForce GTX 1060 |
|---|---|---|
| Video Memory | 6 GB GDDR6 SDRAM | 6 GB GDDR5 SDRAM |
| Video System Features | NVIDIA G-SYNC, Advanced Optimus | - |
| Gaming | Yes | - |
| Camera | Yes - HD | Yes - HD |
| Resolution | 0.92 Megapixel | - |
| Camera Features | RGB camera, 75.8 degrees | - |
| Image Sensor Type | CMOS | - |
| Video Resolutions | 1280 x 720 | - |
| Frame Rate | 30 frames per second | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, microphone |
| Codec | Realtek ALC3254 | - |
| Compliant Standards | High Definition Audio | - |
| Audio Features | - | Acer TrueHarmony technology |
| COMMUNICATIONS | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Wireless | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | 802.11a/b/g/n/ac Wave 2, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | Killer Wi-Fi 6E AX1675i - M.2 2230 | Intel Wireless-AC 9560 |
| Network Interface | 2.5 Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Killer E3100G | - |
| BATTERY | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Technology | 6-cell Lithium Ion | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 86 Wh | 48 Wh |
| Battery Life | Up to 7 hours | Up to 7 hours |
| AC ADAPTER | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 19.5 V | 180 Watt, 19.5 V |
| INPUT | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes (RGB) | Yes |
| Features | 1 RGB zone | Multi-gesture touch pad, Acer FineTip keyboard, precision touchpad |
| CONNECTIONS & EXPANSIONS | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Slots | 2 x M.2 Card (1 free) | - |
|---|---|---|
| Interfaces | HDMI USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) USB 3.2 Gen 1 (PowerShare) 2 x USB 3.2 Gen 1 LAN Headphone/microphone combo jack |
USB 3.0 (with power off charging) 2 x USB 2.0 LAN HDMI USB-C 3.1 Gen 1 Headphone/microphone combo jack |
| Memory Card Reader | - | Yes (SD Card) |
| SOFTWARE | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Operating System (OS) | Windows 11 Home | Windows 10 Home 64-bit Edition |
|---|---|---|
| Software Included | Alienware Command Center | - |
| MISCELLANEOUS | Alienware M15 R7 | Acer Predator Helios 300 (PH315-51) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | AlienFX Lighting Zones | MU-MIMO technology, WMR compatible |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | Limited warranty - 1 year | - |
| Model Number | - | 50PN |
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