In depth comparison and review of Dell Precision 7740 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 7740 based on its technical characteristics, features, user experience, expert reviews and price level.
powerful processor performance
high-resolution display
expandable memory options
robust build quality
excellent graphics capabilities
heavier than competitors
expensive base model
shorter battery life
limited portability
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 7740 | Dell Precision 3581 |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 41.42 cm x 27.37 cm x 3.03 cm | 35.78 cm x 23.33 cm x 2.47 cm |
| Weight | 3.09 kg | 1.795 kg |
| Colour | Black | Grey |
| DISPLAY | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Screen Size (Type) | 17.3" - IPS | 15.6" - IPS |
|---|---|---|
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Pixel Density (ppi) | 127 | 141 |
| V-Sync Rate at Max Res. | 60 Hz | 60 Hz |
| Widescreen | Yes | Yes |
| Image Brightness | 300 cd/m² | 400 cd/m² |
| Colour Gamut | 72%, 100% sRGB | 100% sRGB |
| Colour Support | - | 16.7 million colours |
| Features | UltraSharp, anti-glare, Premium Panel Guarantee, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle | 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 7740 | Dell Precision 3581 |
|---|
| CPU | Intel Core i7 (9th Gen) 9850H / 2.6 GHz | Intel Core i7 (13th Gen) 13700H / 2.4 GHz |
|---|---|---|
| Max Turbo Speed | 4.6 GHz | 5 GHz |
| Number of Cores | 6-core | 14-core |
| Cache | 12 MB | L3 - 24 MB |
| 64-bit Computing | Yes | - |
| Chipset | Mobile Intel CM246 | - |
| Platform Technology | Intel vPro Platform | - |
| Features | Intel Turbo Boost Technology 2.0 | Intel Smart Cache |
| MEMORY | Dell Precision 7740 | Dell Precision 3581 |
|---|
| RAM | 16 GB (2 x 8 GB) | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 128 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | 2666 MHz | 4800 MHz |
| Rated Speed | 2666 MHz | 4800 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 262-pin |
| Slots Qty | 4 | 2 |
| Empty Slots | 2 | 1 |
| STORAGE | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe | 512 GB SSD M.2 2230 PCIe 4.0 x4 - NVM Express (NVMe), Class 35 |
|---|
| AUDIO & VIDEO | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Graphics Processor (GPU) | NVIDIA Quadro RTX 3000 | NVIDIA RTX A1000 |
|---|---|---|
| Video Memory | 6 GB GDDR6 SDRAM | 6 GB GDDR6 SDRAM |
| Camera | Yes | Yes - 1920 x 1080 (standard), 640 x 360 (infrared) |
| Resolution | 0.92 Megapixel | 2.07 Megapixel (standard), 0.23 Megapixel (infrared) |
| Camera Features | 720p HD movie recording | Privacy shutter, IR/RGB camera, Temporal Noise Reduction, 80 degrees, 86.6 degrees (IR camera) |
| Image Sensor Type | - | CMOS |
| Video Resolutions | 1280 x 720 | 1920 x 1080, 640 x 360 |
| Frame Rate | 30 frames per second | 30 frames per second |
| Sound | Stereo speakers, array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3281 | - |
| Compliant Standards | High Definition Audio | High Definition Audio |
| Audio Features | - | Output: MaxxAudio 12.0, Realtek Waves |
| COMMUNICATIONS | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac Wave 2/ax | Bluetooth, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 200 - M.2 Card | Intel Wi-Fi 6E AX 211 - M.2 2230 |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Intel I219-LM | Intel I219-LM |
| Features | - | Dual stream (2x2), WWAN aerial |
| BATTERY | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Technology | 6-cell lithium polymer | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 97 Wh | 64 Wh |
| AC ADAPTER | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 240 Watt, 19.5 V, 12.31 A | 130 Watt, 5 / 20 V |
| INPUT | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Multi-gesture touch pad | 100-key |
| CONNECTIONS & EXPANSIONS | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Interfaces | Mini DisplayPort HDMI 3 x USB 3.1 Gen 1 (PowerShare) Headphone/microphone combo jack LAN 2 x USB-C (supports Thunderbolt 3) |
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, SDHC Card, SDXC Card) | Yes (microSD, microSDHC, microSDXC) |
| SOFTWARE | Dell Precision 7740 | 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) | Intel Rapid Storage Technology, Microsoft Office (30 days trial, excludes office licence) |
| MISCELLANEOUS | Dell Precision 7740 | Dell Precision 3581 |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Integrated Options | - | Accelerometer, ambient light sensor |
| Security | Smart card reader | Discrete Trusted Platform Module (TPM 2.0) Security Chip, smart card reader |
| Security Slot Type | Noble Wedge security slot | Noble Wedge security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | ExpressCharge | Single pointing, Dell ControlVault 3, ExpressChargeBoost |
| Compliant Standards | ISO 14443 type A, FIPS 201 | FIPS 140-2, TCG Certified |
| Carbon Footprint | - | 343 kg carbon emissions |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 0 °C | 0 °C |
| Humidity Range Operating | 20 - 80% (non-condensing) | 10 - 90% (non-condensing) |
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