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Side-by-side specification comparison of two reference models
A full side-by-side comparison of reference models IdeaPad 520S-14IKB and Inspiron 7577 within the same category.
Side-by-side specification comparison of two reference models
| Specification | IdeaPad 520S-14IKB | Inspiron 7577 |
|---|---|---|
| Price | Not for sale | Not for sale |
| General | ||
| Brand | Lenovo | Dell |
| Product Family | IdeaPad | Dell Inspiron |
| Model | IdeaPad 520S-14IKB | Inspiron 7577 |
| Model Number | IdeaPad 520S-14IKB | Inspiron 7577 |
| Launch Year | 2017 year | 2017 year |
| Form Factor | Clamshell | Clamshell |
| Laptop Category | Mainstream | Gaming |
| Operating System | No OS | Windows 10 |
| Operating System Architecture | — | 64-bit |
| Processor | ||
| Processor Manufacturer | Intel | Intel |
| Processor Family | Intel Core i3 | Intel Core i7 |
| Processor Model | Intel Core i3 7130U 2.7GHz | Intel Core i7-7700HQ |
| Processor Generation | 7th Gen | 7th Gen (Kaby Lake) |
| CPU Architecture | x86-64 | Kaby Lake-H |
| CPU Process Node | 14 nm | 14 nm |
| CPU Cores | 2 cores | 4 cores |
| Efficiency Cores | 0 cores | 0 cores |
| CPU Threads | 4 threads | 8 threads |
| CPU Base Clock | 2.7 GHz | 2.8 GHz |
| CPU Max Boost Clock | — | 3.8 GHz |
| L2 Cache | — | 1 MB |
| L3 Cache | 3 MB | 6 MB |
| Processor Base Power | 15 W | 45 W |
| Maximum Processor Power | — | 45 W |
| CPU Manageability Technology | — | Intel Standard Manageability; Intel vPro not supported |
| Graphics | ||
| Graphics Type | Integrated | Discrete |
| GPU Manufacturer | Intel | NVIDIA |
| GPU Model | Intel HD Graphics 620 | NVIDIA GeForce GTX 1060 |
| GPU Architecture | — | Pascal |
| VRAM Capacity | 0 GB | 6 GB |
| VRAM Type | Shared system memory | GDDR5 |
| GPU TGP | — | 80 W |
| GPU Boost Clock | — | 1670 MHz |
| Maximum External Displays | — | 4 displays |
| Maximum External Resolution | 1920 x 1080 @ 60 Hz via HDMI | 7680 x 4320 @ 60 Hz |
| Memory | ||
| Installed Memory | 8 GB | 16 GB |
| Maximum Memory | 8 GB | 32 GB |
| Memory Type | DDR4 | DDR4 |
| Memory Speed | 2133 MT/s | 2400 MT/s |
| Memory Form Factor | SO-DIMM | SO-DIMM |
| Memory Slots | 1 slots | 2 slots |
| Memory Slots Used | 1 slots | 2 slots |
| Memory Upgradeable | Yes | Yes |
| Memory Channels | Single | Dual-channel |
| Storage | ||
| Primary Storage Type | SSD | SSD |
| Storage Capacity | 256 GB | 256 GB |
| Storage Interface | — | SATA III / PCIe NVMe |
| Storage Form Factor | — | M.2 + 2.5-inch |
| Installed Storage Drives | 1 drives | 2 drives |
| Maximum Storage Drives | 1 drives | 2 drives |
| M.2 Storage Slots | — | 1 slots |
| 2.5-inch Drive Bay | — | Yes |
| RAID Support | — | — |
| Card Reader | Yes | Yes |
| Card Reader Formats | MMC, SD, SDHC, SDXC | SD/SDHC/SDXC |
| Card Reader Standard | — | UHS-I |
| Display | ||
| Display Size | 14 inch | 15.6 inch |
| Display Resolution | 1920 x 1080 | 1920 x 1080 |
| Resolution Class | FHD | FHD |
| Display Technology | IPS LCD | LED-backlit LCD |
| Panel Type | IPS | IPS |
| Refresh Rate | — | 60 Hz |
| Display Brightness | 220 nits | 300 nits |
| Color Depth | — | 8-bit |
| Aspect Ratio | 16:9 | 16:9 |
| Display Finish | Anti-glare | Anti-glare |
| Adaptive Sync Technology | — | — |
| Viewing Angle | — | 160° degree |
| Flicker-Free | — | Yes |
| Camera & Biometrics | ||
| Webcam Resolution | — | 720p HD |
| Webcam Frame Rate | — | 30 fps |
| Audio | ||
| Speaker Configuration | Stereo speakers | 2 speakers |
| Speaker Power | 2 x 2 W | — |
| Audio Technology | Harman; Dolby Audio | Waves MaxxAudio Pro |
| Microphone Configuration | Array microphone | Digital-array microphone |
| Audio Jack | Yes | Yes |
| Keyboard & Input | ||
| Keyboard Type | 6-row keyboard | Full-size island-style keyboard |
| Keyboard Backlight | — | Yes |
| Keyboard RGB Zones | — | — |
| Numeric Keypad | — | Yes |
| Touchpad Type | One-piece multi-touch touchpad | Multi-touch precision touchpad |
| Wireless & Networking | ||
| Wi-Fi Standard | Wi-Fi 5 | Wi-Fi 5 (802.11ac) |
| Wi-Fi IEEE Standard | 802.11ac | 802.11ac |
| Wi-Fi Bands | Dual-band | 2.4 GHz; 5 GHz |
| Wi-Fi Spatial Streams | — | 2x2 |
| Wi-Fi Module | — | Killer Wireless-AC |
| Bluetooth Version | 4.1 | 4.2 |
| Ethernet | — | Yes |
| Ethernet Speed | — | 10/100/1000 Mbps |
| WWAN | No | No |
| SIM Slot | — | — |
| Ports & Expansion | ||
| USB Type-A Port Count | 2 ports | 3 ports |
| USB Type-A Specifications | 1x USB 3.1 Gen 1; 1x USB 2.0 Always On | USB 3.x Type-A |
| USB Type-C Port Count | 1 ports | 1 ports |
| USB Type-C Specifications | 1x USB-C 3.1 Gen 1 | USB 3.x Type-C; DisplayPort Alt Mode where supported |
| USB4 Port Count | 0 ports | 0 ports |
| Thunderbolt Port Count | 0 ports | 1 ports |
| HDMI Port Count | 1 ports | 1 ports |
| HDMI Version | 1.4 | HDMI 2.0 |
| DisplayPort Output | No | Mini DisplayPort / USB-C DisplayPort Alt Mode |
| RJ-45 Port Count | 0 ports | 1 ports |
| 3.5 mm Audio Combo Port Count | 1 ports | 1 ports |
| SD Card Slot Count | 1 ports | 1 ports |
| microSD Card Slot Count | 0 ports | 0 ports |
| Smart Card Reader | No | No |
| Security Lock Slot | Yes | Yes |
| Internal PCIe Slots | — | 1 M.2 storage slot(s) |
| Battery & Power | ||
| Battery Capacity | — | 56 Wh |
| Battery Cells | — | 4 cells |
| Battery Chemistry | Li-polymer | Lithium-ion |
| Power Adapter | 45 W | 180 W |
| Power Connector | Barrel (round-tip) | Barrel power connector |
| Dimensions & Build | ||
| Width | 327.4 mm | 389 mm |
| Depth | 236.5 mm | 274.7 mm |
| Thickness | 19.3 mm | 24.95 mm |
| Weight | 1.7 kg | 2.65 kg |
| Chassis Material | Aluminum / PC-ABS | Plastic |
| Lid Material | Aluminum | Plastic |
| Base Material | PC/ABS | Plastic |
| Hinge Opening Angle | — | 135 degree |
| MIL-STD Testing | — | Not claimed |
| IP Rating | — | — |
| Security & Manageability | ||
| TPM | — | TPM 2.0 |
| BIOS / UEFI Password Support | Yes | Yes |
| Drive Password Support | Yes | Yes |
| Secure Boot | — | Yes |
| Enterprise Manageability | — | Consumer BIOS/UEFI management |
| Smart Card Support | No | No |
| BIOS Recovery / Self-Healing | — | BIOS recovery supported |
| Certifications & Sustainability | ||
| ENERGY STAR | ENERGY STAR 6.1 | Not claimed |
| EPEAT | Silver | Not claimed |
| TCO Certified | — | Not claimed |
| RoHS Compliance | Yes | Yes |
| Recycled Materials | — | Not claimed |
| Environment & Warranty | ||
| Operating Temperature | — | 5 to 35 °C |
| Operating Humidity | — | 10 to 90 (non-condensing) % RH |
| Storage Temperature | — | -20 to 60 °C |
| Warranty | — | 1 years |
| Warranty Type | — | Limited hardware warranty; region dependent |
IdeaPad 520S-14IKB and Inspiron 7577 share specifications such as Storage Capacity (256 GB), Display Resolution (1920 x 1080), Launch Year (2017 year), Form Factor (Clamshell).
The main differences: Processor Model (IdeaPad 520S-14IKB: Intel Core i3 7130U 2.7GHz, Inspiron 7577: Intel Core i7-7700HQ); GPU Model (IdeaPad 520S-14IKB: Intel HD Graphics 620, Inspiron 7577: NVIDIA GeForce GTX 1060); Installed Memory (IdeaPad 520S-14IKB: 8 GB, Inspiron 7577: 16 GB); Display Size (IdeaPad 520S-14IKB: 14 inch, Inspiron 7577: 15.6 inch).
IdeaPad 520S-14IKB may suit users who need its differing values, while Inspiron 7577 benefits those who need its paired strengths. Review the specs table above before deciding.
