In depth comparison and review of Dell Precision 7520 and Dell Precision 3581. Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of Dell Precision 3581 based on its technical characteristics, features, user experience, expert reviews and price level.
robust processing power
expandable memory options
reliable build quality
good thermal management
decent port selection
heavyweight design
mediocre battery life
standard display quality
higher price point
| DESIGN AND DIMENSIONS | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 37.8 cm x 26.1 cm x 3.3 cm | 35.78 cm x 23.33 cm x 2.47 cm |
| Weight | 2.8 kg | 1.795 kg |
| Colour | Black | Grey |
| DISPLAY | Dell Precision 7520 | Dell Precision 3581 |
|---|
| 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. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Brightness | - | 400 cd/m² |
| Colour Gamut | - | 100% sRGB |
| Colour Support | - | 16.7 million colours |
| Features | Anti-glare | Anti-glare, ±80° horizontal viewing angle, ±80° vertical viewing angle, 35 ms response rate, 0.179 mm pixel pitch, True 8-bit |
| PROCESSOR | Dell Precision 7520 | Dell Precision 3581 |
|---|
| CPU | Intel Core i7 (7th Gen) 7700HQ / 2.8 GHz | Intel Core i7 (13th Gen) 13700H / 2.4 GHz |
|---|---|---|
| Max Turbo Speed | 3.8 GHz | 5 GHz |
| Number of Cores | Quad-Core | 14-core |
| Cache | 6 MB | L3 - 24 MB |
| 64-bit Computing | Yes | - |
| Chipset | Mobile Intel CM238 | - |
| Features | Intel Turbo Boost Technology 2.0 | Intel Smart Cache |
| MEMORY | Dell Precision 7520 | Dell Precision 3581 |
|---|
| RAM | 16 GB (2 x 8 GB) | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | 2400 MHz | 4800 MHz |
| Rated Speed | 2400 MHz | 4800 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 262-pin |
| Slots Qty | 4 | 2 |
| Empty Slots | 2 | 1 |
| STORAGE | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe | 512 GB SSD M.2 2230 PCIe 4.0 x4 - NVM Express (NVMe), Class 35 |
|---|
| AUDIO & VIDEO | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Graphics Processor (GPU) | AMD Radeon Pro WX 4130 | NVIDIA RTX A1000 |
|---|---|---|
| Video Memory | 2 GB GDDR5 SDRAM | 6 GB GDDR6 SDRAM |
| Camera | Yes - 1280 x 720 | Yes - 1920 x 1080 (standard), 640 x 360 (infrared) |
| Resolution | - | 2.07 Megapixel (standard), 0.23 Megapixel (infrared) |
| Camera Features | - | Privacy shutter, IR/RGB camera, Temporal Noise Reduction, 80 degrees, 86.6 degrees (IR camera) |
| Image Sensor Type | CMOS | CMOS |
| Video Resolutions | 1280 x 720 | 1920 x 1080, 640 x 360 |
| Frame Rate | - | 30 frames per second |
| Sound | Two microphones | Stereo speakers, dual array microphone |
| Compliant Standards | High Definition Audio | High Definition Audio |
| Audio Features | - | Output: MaxxAudio 12.0, Realtek Waves |
| COMMUNICATIONS | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | Bluetooth, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 8265 | Intel Wi-Fi 6E AX 211 - M.2 2230 |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | - | Intel I219-LM |
| Features | - | Dual stream (2x2), WWAN aerial |
| BATTERY | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Technology | 6-cell Lithium Ion | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | - | 64 Wh |
| AC ADAPTER | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 180 Watt, 19.5 V, 9.23 A | 130 Watt, 5 / 20 V |
| INPUT | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Type | Keyboard, touchpad, pointing stick | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad | 100-key |
| CONNECTIONS & EXPANSIONS | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Interfaces | Mini DisplayPort LAN 4 x USB 3.1 Gen 1 (PowerShare) Headphone/microphone combo jack HDMI Dock USB-C (supports Thunderbolt) |
HDMI 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery) USB 3.2 Gen 1 (PowerShare) USB 3.2 Gen 1 LAN Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (SD Card) | Yes (microSD, microSDHC, microSDXC) |
| SOFTWARE | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - Multilingual User Interface (MUI) | Windows 11 Pro - Dutch / English / French / German / Italian |
|---|---|---|
| Software Included | Microsoft Office (Trial), McAfee (30 days trial) | Intel Rapid Storage Technology, Microsoft Office (30 days trial, excludes office licence) |
| MISCELLANEOUS | Dell Precision 7520 | Dell Precision 3581 |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | Power adapter | USB-C power adapter |
| Integrated Options | - | Accelerometer, ambient light sensor |
| Security | Trusted Platform Module (TPM) Security Chip, smart card reader | Discrete Trusted Platform Module (TPM 2.0) Security Chip, smart card reader |
| Security Slot Type | - | Noble Wedge security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | - | Single pointing, Dell ControlVault 3, ExpressChargeBoost |
| Compliant Standards | - | FIPS 140-2, TCG Certified |
| Carbon Footprint | - | 343 kg carbon emissions |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 10 °C | 0 °C |
| Humidity Range Operating | 20 - 80% (non-condensing) | 10 - 90% (non-condensing) |
| Manufacturer Warranty | Limited warranty - 3 years - response time: next business day | - |
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