Side by side comparison and review of Dell Precision 3551 and Dell Precision 7550. 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 Dell Precision 3551 based on its technical characteristics, features, user experience, expert reviews and price level.
robust processing power
expandable memory options
reliable build quality
adequate port selection
decent battery life
heavier design
basic display quality
noisy under load
premium price tag
Advantages and disadvantages of Dell Precision 7550 based on its technical characteristics, features, user experience, expert reviews and price level.
powerful workstation performance
high-quality 4k display
robust build quality
excellent thermal management
expandable memory options
heavier than competitors
expensive base model
limited battery life
noisy under load
| DESIGN AND DIMENSIONS | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 35.91 cm x 23.625 cm x 1.499 cm | 36 cm x 24.2 cm x 2.736 cm |
| Weight | 1.89 kg | 2.45 kg |
| Colour | - | Grey |
| DISPLAY | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Screen Size (Type) | 15.6" | 15.6" |
|---|---|---|
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Pixel Density (ppi) | 141 | 141 |
| V-Sync Rate at Max Res. | 60 Hz | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:9 |
| Features | Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle | Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle, 35 ms response rate, 0.18 mm pixel pitch |
| PROCESSOR | Dell Precision 3551 | Dell Precision 7550 |
|---|
| CPU | Intel Core i7 (10th Gen) 10750H / 2.6 GHz | Intel Core i7 (10th Gen) 10850H / 2.7 GHz |
|---|---|---|
| Max Turbo Speed | 5 GHz | 5.1 GHz |
| Number of Cores | 6-core | 6-core |
| Cache | 12 MB | 12 MB |
| 64-bit Computing | Yes | Yes |
| Chipset | - | Mobile Intel WM490 |
| Platform Technology | - | Intel vPro Platform |
| Features | Intel Turbo Boost Max Technology 3.0 | Intel Turbo Boost Max Technology 3.0, Intel Thermal Velocity Boost, Intel vPro Platform Eligibility |
| MEMORY | Dell Precision 3551 | Dell Precision 7550 |
|---|
| RAM | 8 GB (1 x 8 GB) | 16 GB (2 x 8 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 128 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2933 MHz | 2933 MHz |
| Rated Speed | 2933 MHz | 2933 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 4 |
| Empty Slots | 1 | 2 |
| STORAGE | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe | 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Graphics Processor (GPU) | NVIDIA Quadro P620 | NVIDIA Quadro RTX 3000 |
|---|---|---|
| Video Memory | 4 GB GDDR5 SDRAM | 6 GB GDDR6 SDRAM |
| Camera | Yes - HD | Yes - HD |
| Resolution | 8 Megapixel | 0.92 Megapixel |
| Camera Features | 78.6 degrees | 74.9 degrees |
| Image Sensor Type | CMOS | - |
| Video Resolutions | 1280 x 720 | 1280 x 720 |
| Frame Rate | 30 frames per second | 30 frames per second |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3204 | Realtek ALC3281 |
| Compliant Standards | High Definition Audio, Wave MAXXAudio Pro | High Definition Audio |
| COMMUNICATIONS | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Wireless | 802.11a/b/g/n/ac Wave 2/ax, Bluetooth 5.1 | 802.11a/b/g/n/ac Wave 2/ax, Bluetooth 5.1 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 201 | Intel Wi-Fi 6 AX 201 - M.2 2230 |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | - | Intel I219-LM |
| Features | - | Wake-on-LAN (WOL) |
| WWAN |
|---|
| Generation | - | 4G |
|---|---|---|
| Technology | - | LTE |
| Controller | - | Qualcomm Snapdragon X20 |
| BATTERY | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Technology | 4-cell | 6-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 68 Wh | - |
| AC ADAPTER | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 130 Watt, 20 V, 6.5 A | 180 Watt, 19.5 V, 9.23 A |
| INPUT | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Type | Keyboard, touchpad, pointing stick | Keyboard, touchpad |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| CONNECTIONS & EXPANSIONS | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Interfaces | HDMI USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort 1.4 Alt Mode) USB 3.1 (PowerShare) 2 x USB 3.1 Gen 1 LAN Headphone/microphone combo jack |
HDMI Mini DisplayPort 1.4 2 x USB-C 3.2 Gen 2 (supports Thunderbolt 3) USB 3.2 Gen 1 (PowerShare) USB 3.2 Gen 1 LAN Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (microSD, microSDHC, microSDXC) | Yes (SD Card, SDHC Card, SDXC Card) |
| SOFTWARE | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - Multilingual User Interface (MUI) | Windows 10 Pro 64-bit Edition - Multilingual User Interface (MUI) |
|---|---|---|
| Software Included | Microsoft Office (Trial) | Microsoft Office (Trial) |
| MISCELLANEOUS | Dell Precision 3551 | Dell Precision 7550 |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Trusted Platform Module (TPM 2.0) Security Chip, smart card reader | 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 |
| Compliant Standards | - | FIPS 140-2, TCG Certified |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 0 °C | 0 °C |
| Humidity Range Operating | 0 - 95% (non-condensing) | 10 - 90% (non-condensing) |
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