Dell Precision 7780 vs Precision 5770
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Review
Performance
System and application performance
Gaming
Performance in popular 3D games
Display
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Connectivity
Ports, webcam and other interfaces
Portability
Design, materials, durability and usability
You can adjust the importance of each feature to more precisely determine which laptop better suits your personal needs.
Key Differences
Advantages of the Dell Precision 7780
- Includes an old-school USB-A port
- Around 61% better multi-core CPU performance in the Cinebench R23 test
- Features a much bigger (~48%) battery – 83 against 56 watt-hours
- Better webcam recording quality
Advantages of the Dell Precision 5770
- Significantly easier to carry: weighs 880 grams less (around 1.94 lbs)
- Can run popular games at about 38-52% higher FPS
- Thinner bezels and 15% higher screen-to-body ratio
- Higher number of cutting-edge USB Type-C ports: 4 versus 3
- Much smaller footprint: 12% more compact case (144 vs 163.5 square inches)
Value for money
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Tests and Specifications
Comparison table of test results and technical specsCase
Weight | 3.05 kg (6.73 lbs) | 2.17 kg (4.78 lbs) |
Dimensions | 398 x 265.02 x 25.95-28.5 mm 15.67 x 10.43 x 1.02-1.12 inches |
374.48 x 248.08 x 13.15-19.54 mm 14.74 x 9.77 x 0.52-0.77 inches |
Area | 1055 cm2 (163.4 inches2) | 929 cm2 (144 inches2) |
Screen-to-body ratio | ~78.2% | ~90.2% |
Side bezels | 7.5 mm | 4.1 mm |
Colors | Gray | Black, Silver |
Material | Top: Aluminum |
Aluminum |
Transformer | No | No |
Opening angle | 180° | 135° |
Size comparison
Cooling system | Active | Active |
Vapor chamber | No | No |
Liquid metal | No | No |
Number of fans | 2 | 2 |
Display
Size | 17.3 inches | 17 inches |
Type | IPS LCD | IPS LCD |
Refresh rate | 60 Hz | 60 Hz |
PPI | 127 ppi | 133 ppi |
Aspect ratio | 16:9 | 16:10 |
Resolution | 1920 x 1080 pixels | 1920 x 1200 pixels |
HDR support | No | Yes, HDR10 |
Sync technology | No | No |
Touchscreen | No | No |
Coating | Matte | Matte |
Ambient light sensor | Yes | No |
Contrast | 1000:1 | 1650:1 |
DCI-P3 color gamut | 99% | - |
Response time | 35 ms | 35 ms |
Max. brightness
Battery
Capacity
Voltage | 11.55 V | 11.4 V |
Full charging time | 2:00 hr | - |
Battery type | Li-Ion | Li-Ion |
Replaceable | No | No |
Fast charging | Yes | Yes |
USB Power Delivery | Yes | Yes |
Charging port position | Left | Left, Right |
Charge power | 180 / 240 W | 90 / 130 W |
Cable length | 1 meters | 1 meters |
Weight of AC adapter | 480 / 670 grams | - |
CPU
CPU name
Base frequency | 2.6 GHz | 2.7 GHz |
Turbo frequency | 4.8 GHz | 4.5 GHz |
Cores | 14 (6P + 8E) | 12 (4P + 8E) |
Threads | 20 | 16 |
L3 Cache | 24 MB | 18 MB |
Integrated GPU | Intel UHD Graphics (32EU) | Intel Iris Xe Graphics (80EU) |
Fabrication process | 10 nm | 10 nm |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Graphics Card
GPU name
TGP | - | 65 W |
Nvidia Optimus | - | Yes |
Type | Dedicated | Dedicated |
Fabrication process | 8 nm | 8 nm |
GPU base clock | 630 MHz | 1215 MHz |
GPU boost clock | 1140 MHz | 1687 MHz |
FLOPS | 4.92 TFLOPS | 8.32 TFLOPS |
Memory size | 6 GB | 8 GB |
Memory type | GDDR6 | GDDR6 |
Memory bus | 128 bit | 128 bit |
Memory speed | ~11 Gbps | ~12 Gbps |
Shading units (cores) | 2048 | 2560 |
Texture mapping units (TMUs) | 64 | 80 |
Raster operations pipelines (ROPs) | 32 | 48 |
GPU performance
RAM
RAM size
Channels | 1x16 GB | 1x8 GB |
Clock | 4800 MHz | 4800 MHz |
Type | DDR5 | DDR5 |
Upgradable | Yes | Yes |
Total slots | 2 | 2 |
Max. ram size | 128 GB | 64 GB |
Storage
Storage size
Bus | PCI-E Gen 4.0 (4x) | PCI-E Gen 4.0 (4x) |
Storage type | SSD (M2) | SSD (M2) |
Channels | 1x256 GB | 1x256 GB |
Upgradable | Yes | Yes |
Total slots | 4 | 2 |
NVMe | Yes | Yes |
Sound
Audio chip | Realtek ALC3281 | Realtek ALC711-CG |
Speakers | 4.0 | 2.2 (2 tweeters and 2 woofers) |
Power | 4x2W | 4x2W |
Dolby Atmos | No | No |
Microphones | 2 | 2 |
Connectivity
Wi-Fi standard | v6E | v6E |
Bluetooth | v5.3 | v5.2 |
Fingerprint | Yes | Yes |
Infrared sensor | Optional | Yes |
Optical drive | No | No |
Webcam | Above the display | Above the display |
Webcam resolution | 1920 x 1080 | 1280 x 720 |
USB-A | 2x USB 3.2 | No |
USB Type-C | 3x USB 4.0 | 4x USB 3.2 |
Thunderbolt | Thunderbolt 4 | Thunderbolt 4 |
HDMI | 1x HDMI 2.1 | No |
DisplayPort | No | No |
VGA | No | No |
Audio jack (3.5 mm) | Yes | Yes |
Ethernet (RJ45) | Yes | No |
SD card reader | Yes | Yes |
Proprietary charging port | Yes | No |
Input
Keyboard type | Island | Island |
Numpad | Yes | No |
Backlight | Yes | Yes |
Size | 11.5 x 8.0 cm | 14.9 x 8.9 cm |
Surface | Glass | Glass |
Windows Precision | Yes | Yes |
Further details
Notes on Precision 7780:
- The integrated graphics model features an HDMI 2.0 port, while the discrete one has HDMI 2.1.
- Has an optional infrared sensor for biometric user authentication using Windows Hello.
- Max memory configuration: 128 GB using CAMM module and 64 GB using SODIMM.
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.
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