Dell Precision 7740 vs. Surface Book 3: Which is better?

Here is a side by side comparison between Dell Precision 7740 and Surface Book 3 specs including CPU, RAM, storage, battery, display, and more.

Dell Precision 7740 Pros

Reasons that Dell Precision 7740 is better than Surface Book 3.

Much faster CPU performance

Intel Xeon E-2286M inside Dell Precision 7740 has a 85% better multi-core CPU performance score than the Intel Core i7-1065G7 inside Surface Book 3.

Geekbench 5 multi-core score
Dell Precision 7740 - Intel Xeon E-2286M
6,910
Dell Precision 7740 - Intel Core i9-9980HK
6,504
Dell Precision 7740 - Intel Core i9-9880H
6,100
Dell Precision 7740 - Intel Xeon E-2276M
5,165
Dell Precision 7740 - Intel Core i7-9850H
4,914
Dell Precision 7740 - Intel Core i7-9750H
4,880
Surface Book 3 - Intel Core i7-1065G7
3,722
Surface Book 3 - Intel Core i5-1035G7
3,691
Dell Precision 7740 - Intel Core i5-9400H
3,690
Supports larger memory

Dell Precision 7740 supports a larger memory capacity than the Surface Book 3. It supports up to 128GB versus 32GB of system memory on the Surface Book 3.

Max system memory size
Dell Precision 7740
128 GB
Surface Book 3
32 GB
Upgradable memory

Dell Precision 7740 comes with four SODIMM slots that allow you to replace or upgrade when needed. On the flip side, you can't upgrade RAM on the Surface Book 3 since it has onboard memory.

MemoryDell Precision 7740Surface Book 3
Slots
x4
Onboard
TypeDDR4 ECCLPDDR4X
28% larger display

Dell Precision 7740 has a 17.3-inch screen size 28% larger than the 13.5-inch Surface Book 3.

Display size
Dell Precision 7740
17.3-inch
Surface Book 3
13.5-inch

Surface Book 3 Pros

Reasons that Surface Book 3 is better than Dell Precision 7740.

Newer manufacturing

2020 vs. 2019

Supports faster memory

Surface Book 3 supports a faster memory speed than the Dell Precision 7740. It supports up to 3733MHz versus 3200MHz of system memory on the Dell Precision 7740.

Memory type and speed
Surface Book 3 - LPDDR4X
3,733 MHz
Dell Precision 7740 - DDR4 ECC
3,200 MHz
About 51% lighter

Surface Book 3 weighed 3.38 pounds, 51% lighter than the 6.79 pounds Dell Precision 7740.

WeightDell Precision 7740Surface Book 3
Pound
6.79 lbs.
3.38 lbs.
Kilogram
3.08 kg
1.53 kg

Prices

Here are the latest price updates and offers for both devices.

Dell Precision 7740 Price
2019 Dell Precision 7740 Laptop 17.3 - Intel Core i7 9th Gen - i7-9850H - Six Core 4.6Ghz - 512GB SSD - 32GB RAM - Nvidia Quadro RTX 3000 - 1920x1080 FHD - Windows 10 Pro Carbon (Renewed)
2019 Dell Precision 7740 Laptop 17.3 - Intel Core i7 9th Gen - i7-9850H - Six Core 4.6Ghz - 512GB SSD - 32GB RAM - Nvidia Quadro RTX 3000 - 1920x1080 FHD - Windows 10 Pro Carbon (Renewed)
By Dell
$649.00
$729.99 11% OFF
Dell Precision 7740 17.3" Mobile Workstation - Intel Core i7-9850H - 16GB RAM - 512GB SSD (Renewed)
Dell Precision 7740 17.3" Mobile Workstation - Intel Core i7-9850H - 16GB RAM - 512GB SSD (Renewed)
By Dell
$989.99
Dell Precision 7740 17.3" FHD Intel Core i7-9850H 2.6GHz, 32GB RAM, 512GB SSD, Windows 11 Pro 64bit, CAM, NVIDIA Quadro RTX 3000 6GB (Renewed)
Dell Precision 7740 17.3" FHD Intel Core i7-9850H 2.6GHz, 32GB RAM, 512GB SSD, Windows 11 Pro 64bit, CAM, NVIDIA Quadro RTX 3000 6GB (Renewed)
By Dell
$1,149.99
Surface Book 3 Price
Microsoft Surface Book 3 - 13.5" Touch-Screen - 10th Gen Intel Core i7 - 16GB Memory - 256GB SSD (Latest Model) - Platinum
Microsoft Surface Book 3 - 13.5" Touch-Screen - 10th Gen Intel Core i7 - 16GB Memory - 256GB SSD (Latest Model) - Platinum
By Microsoft
$1,026.03
New Microsoft Surface Book 3 - 13.5" Touch-Screen - 10th Gen Intel Core i5 - 8GB Memory - 256GB SSD (Latest Model) - Platinum
New Microsoft Surface Book 3 - 13.5" Touch-Screen - 10th Gen Intel Core i5 - 8GB Memory - 256GB SSD (Latest Model) - Platinum
By Microsoft
$790.00
NEW Microsoft Surface Book 3 - 13.5 Touch-Screen - 10th Gen Intel Core i7 - 16GB Memory - 256GB SSD (Latest Model) - Platinum (Renewed)
NEW Microsoft Surface Book 3 - 13.5 Touch-Screen - 10th Gen Intel Core i7 - 16GB Memory - 256GB SSD (Latest Model) - Platinum (Renewed)
By Microsoft
$798.00

Availability

Dell Precision 7740Surface Book 3
Released20192020
Release Date
  • Announced at Computex 2019.
  • Available from early July 2019.
  • Introduced: May 6, 2020
  • Pre-ordered: May 6, 2020
  • Released: May 12, 2020
PricingStarting at $1,409For Consumer
  • Surface Book 3 13.5”
    • $1,600 - i5 | 8GB | 256GB | Iris Plus
    • $2,000 - i7 | 16GB | 256GB | GTX 1650
    • $2,500 - i7 | 32GB | 512GB | GTX 1650
    • $2,700 - i7 | 32GB | 1TB | GTX 1650
  • Surface Book 3 15”
    • $2,300 - i7 | 16GB | 256GB | GTX 1660 Ti
    • $2,800 - i7 | 32GB | 512GB | GTX 1660 Ti
    • $3,000 - i7 | 32GB | 1TB | GTX 1660 Ti
    • $3,400 - i7 | 32GB | 2TB | GTX 1660 Ti
For Commercial
  • Surface Book 3 13.5”
    • $1,700 - i5 | 8GB | 256GB | Iris Plus
    • $2,100 - i7 | 16GB | 256GB | GTX 1650
    • $2,600 - i7 | 32GB | 512GB | GTX 1650
    • $2,800 - i7 | 32GB | 1TB | GTX 1650
  • Surface Book 3 15”
    • $2,400 - i7 | 16GB | 256GB | GTX 1660 Ti
    • $2,900 - i7 | 32GB | 512GB | GTX 1660 Ti
    • $3,100 - i7 | 32GB | 1TB | GTX 1660 Ti
    • $3,500 - i7 | 32GB | 2TB | GTX 1660 Ti
    • $3,500 - i7 | 32GB | 512GB | RTX 3000
    • $3,700 - i7 | 32GB | 1TB | RTX 3000
Generations-

Exterior

Dell Precision 7740Surface Book 3
Dimensions16.3 x 10.7 x 1.03 - 1.19 in (414.2 x 273.7 x 26.15 - 30.3 mm)
  • Surface Book 3 13.5” (Core i5)
    12.3” x 9.14” x 0.51”-0.90” (312 mm x 232 mm x 13 mm-23 mm)
  • Surface Book 3 13.5” (Core i7)
    12.3” x 9.14” x 0.59”-0.90” (312 mm x 232 mm x 15 mm-23 mm)
  • Surface Book 3 15”
    13.5” x 9.87” x 0.568-0.90” (343 mm x 251 mm x 15 mm-23 mm)
Weight
  • 6.79 lbs (3.08 Kg)
  • Surface Book 3 13.5” (Core i5)
    • Total: 3.38 lbs (1,534 g)
    • Tablet: 1.59 lbs (719 g)
  • Surface Book 3 13.5” (Core i7)
    • Total: 3.62 lbs (1,642 g)
    • Tablet: 1.59 lbs (719 g)
  • Surface Book 3 15”
    • Total: 4.20 lbs (1,905 g)
    • Tablet: 1.80 lbs (817 g)
Colors
  • Carbon Fiber LCD Cover
  • Aluminum Titan Gray LCD Cover
Platinum
Keyboard and Trackpad
  • Full-size with optional backlit keyboard.
  • 3.92 x 2.09 in (99.50 mm x 53 mm) touchpad with multi-touch gesture support.
  • Keyboard:
    • Full-size mechanical backlit keyset with 1.55mm travel.
    • Mechanical friction attaches the Clipboard to the keyboard.
  • Trackpad:
    • Larger size 105 mm x 70 mm, glass.
    • Supports up to Five-finger multitouch gesture.

Display

Dell Precision 7740Surface Book 3
Size17.3 Inches13.5 Inches
Info
  • 17.3”, HD
    1600 x 900, Anti-Glare, LED Backlight, Non-touch 60% color gamut
  • 17.3”, FHD
    1920 x 1080, Anti-Glare IPS, Non-touch 100% color gamut sRGB
  • 17.3”, UHD
    3840 x 2160, Anti-Glare IGZO, Non-touch 100% AdobeRGB
  • Surface Book 3 13.5”
    • Display Resolution: 3000 x 2000 (6M Pixels)
    • Display Density: 267 PPI
  • Surface Book 3 15”
    • Display Resolution: 3240 x 2160 (7M Pixels)
    • Display Density: 260 PPI
  • PixelSense™ Display
  • Aspect ratio: 3:2
  • Contrast ratio: 1600:1
  • Inking: designed together with Surface Pen
  • Touch: 10 points multi-touch

Ports

Dell Precision 7740Surface Book 3
Dell Precision 7740 Ports
Image Source: Dell
Left (4)
  • 2 x Thunderbolt 3
    40 Gpbs, USB 3.1 Gen 2 (10 Gbps), DisplayPort
  • 1 x full-size SD card slot
  • 1 x Smart Card Reader
Right (4)
  • 1 x headphone jack
    Headphone/Microphone
  • 2 x USB-A
    USB 3.2 Gen 1 (5 Gbps), PowerShare
  • 1 x lock slot
Back (5)
  • 1 x HDMI
    v2.0
  • 1 x Mini DisplayPort
    v1.4
  • 1 x RJ-45
    1 Gbps
  • 1 x USB-A
    USB 3.1 Gen 1 (5 Gbps), PowerShare
  • 1 x power port
Surface Book 3 Ports
Image Source: Microsoft
  • 2 x Full-size USB 3.1 Gen 2
  • 1 x USB Type-C 3.1 Gen 2
    Supports Power Delivery and DisplayPort.
  • 2 x Surface Connect™
    1 in tablet, 1 in keyboard base, both supports charging and docking.
  • 1 x Headset jack
  • 1 x Full-size SDXC card reader
    UHS-II Performance

Internal Specs

Dell Precision 7740Surface Book 3
Processor
  1. 9th Gen Intel® Core™ i5-9400H
    4 cores, 8 threads, 2.50 → 4.30 GHz, 8MB SmartCache, 45W
  2. 9th Gen Intel® Core™ i7-9750H
    6 cores, 12 threads, 2.60 → 4.50 GHz, 12MB SmartCache, 45W
  3. 9th Gen Intel® Core™ i7-9850H
    6 cores, 12 threads, 2.60 → 4.60 GHz, 12MB SmartCache, 45W
  4. 9th Gen Intel® Core™ i9-9880H
    8 cores, 16 threads, 2.30 → 4.80 GHz, 16MB SmartCache, 45W
  5. 9th Gen Intel® Core™ i9-9980HK
    8 cores, 16 threads, 2.40 → 5.00 GHz, 16MB SmartCache, 45W
  6. Intel Xeon E-2276M
    6 cores, 12 threads, 2.80 → 4.70 GHz, 12MB SmartCache, 45W
  7. Intel Xeon E-2286M
    8 cores, 16 threads, 2.40 → 5.00 GHz, 16MB SmartCache, 45W
  1. 10th Gen Intel® Core™ i5-1035G7
    4 cores, 8 threads, 1.20 → 3.70 GHz, 6MB SmartCache, 15W
  2. 10th Gen Intel® Core™ i7-1065G7
    4 cores, 8 threads, 1.30 → 3.90 GHz, 8MB SmartCache, 15W
Integrated Graphics
  1. 9th Gen Intel® Core™ i5-9400H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1100 MHz
  2. 9th Gen Intel® Core™ i7-9750H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1150 MHz
  3. 9th Gen Intel® Core™ i7-9850H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1150 MHz
  4. 9th Gen Intel® Core™ i9-9880H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  5. 9th Gen Intel® Core™ i9-9980HK
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1250 MHz
  6. Intel Xeon E-2276M
    Intel® UHD Graphics P630
    24 Execution Units, 350 → 1200 MHz
  7. Intel Xeon E-2286M
    Intel® UHD Graphics P630
    24 Execution Units, 350 → 1250 MHz
  1. 10th Gen Intel® Core™ i5-1035G7
    Intel® Iris® Plus Graphics
    64 Execution Units, 300 → 1050 MHz
  2. 10th Gen Intel® Core™ i7-1065G7
    Intel® Iris® Plus Graphics
    64 Execution Units, 300 → 1100 MHz
Memory
  • Memory Slots
    • 4 x DDR4 SODIMM
  • Memory Configurations
    • Minimum Memory: 8GB
    • Maximum Memory: 128B
    • Memory Type: DDR4 ECC or Non-ECC memory
    • Memory Speed: 2666 MHz or 3200 MHz
  • Surface Book 3 13.5”
    8GB 16GB 32GB
    3733 MHz LPDDR4x
  • Surface Book 3 15”
    16GB 32GB
    3733 MHz LPDDR4x
Discrete Graphics
  • AMD Radeon Pro WX 3200 (Optional)
    GCN 4.0 Architecture, 4GB GDDR5 128-bit, 1295 MHz, 640 Shading Units.
  • Radeon Pro WX 7130 w/8GB GDDR5 (Optional)
    GCN 4.0 Architecture, 4GB GDDR5 128-bit, 1188 → 1243 MHz, 2304 Shading Units.
  • NVIDIA Quadro RTX 3000 Mobile (Optional)
    Turning Architecture, 6GB GDDR6 256-bit, 945→ 1380 MHz, 2,304 Shading Units.
  • NVIDIA Quadro RTX 4000 Mobile (Optional)
    Turning Architecture, 8GB GDDR6 256-bit, 1110→ 1560 MHz, 2,560 Shading Units.
  • NVIDIA Quadro RTX 5000 Mobile (Optional)
    Turning Architecture, 16GB GDDR6 256-bit, 1035→ 1545 MHz, 3,072 Shading Units.
  • Surface Book 3 13.5”
    • NVIDIA® GeForce® GTX 1650 with Max-Q
      Turning Architecture, 4GB GDDR5, 128-bit, 1020 → 1245 MHz, 1024 CUDA Cores.
  • Surface Book 3 15”
    • NVIDIA® GeForce® GTX 1660 Ti with Max-Q
      Turning Architecture, 6GB GDDR6, 192-bit, 1245 → 1425 MHz, 1536 CUDA Cores.
    • NVIDIA® Quadro® RTX™ 3000 with Max-Q
      Turning Architecture, 6GB GDDR6,  192-bit, 765 → 1305 MHz, 1920 CUDA Cores, 240 Tensor Cores, 30 RT Cores, Real-time ray tracing, AI hardware acceleration, ODE, QNF,
Storage
  • Hard Drive Slots
    • 4 x M.2 2280 PCIe SSD slot
    • 1 x 2.5 inches hard drive slot
      Available only on a 4-cell 64Wh battery model.
  • Hard Drive Configurations
    • Up to 8TB M.2 NVMe PCIe SSD
    • Up to 2TB SATA Hard Drive
256 GB 512 GB 1 TB 2TB
PCIe SSD

Connectivity

Dell Precision 7740Surface Book 3
Wi-Fi
  • Intel® Wi-Fi 6 AX200 2x2 .11ax 160MHz
  • Qualcomm QCA61x4A 802.11ac Dual Band, 2x2, Wireless Adapter
  • Wi-Fi 6: IEEE 802.11 a/b/g/n/ac/ax compatible.
Bluetooth
  • Bluetooth 4.2
  • Bluetooth 5.1
  • Bluetooth Wireless 5.0 technology
Ethernet
  • Integrated Intel i219LM 10/100/1000 Mb/s Ethernet (RJ-45 ) with Intel Remote Wake UP and PXE
-
More-
  • Surface Book 3 15” Only: Xbox Wireless built-in

Battery

Dell Precision 7740Surface Book 3
Size
  • 64 Wh (4 Cells, Lithium-Ion Polymer, ExpressCharge™ Capable Battery)
  • 97 Wh (6 Cells, Lithium-Ion Polymer, ExpressCharge™ Capable Battery)
  • Surface Book 3 13.5” (Core i5)
    Total: 69Wh
    Clipboard: 18Wh
    Base: 51Wh
  • Surface Book 3 13.5” (Core i7)
    Total: 75.3Wh
    Clipboard: 18Wh
    Base: 57.3Wh
  • Surface Book 3 15”
    Total: 90Wh
    Clipboard: 23Wh
    Base: 67Wh
Battery Life-
  • Surface Book 3 13.5”
    • Up to 15.5 hours of typical device usage
  • Surface Book 3 15”
    • Up to 17.5 hours of typical device usage
Power Supply240 W power adapter
Power rated at 19.5 VDC/12.31 A.
  • Surface Book 3 13.5” (Core i5)
    65W Surface Power Supply with USB-A (5W) charging port.
  • Surface Book 3 13.5” (Core i7)
    102W Surface Power Supply with USB-A (7W) charging port.
  • Surface Book 3 15”
    127W Surface Power Supply with USB-A (7W) charging port.

Software

Dell Precision 7740Surface Book 3
OS
Windows 10 Home Windows 10 Pro Ubuntu 18.04 LTS RedHat 7.5
Upgradable to Windows 11
  • For Consumer: Windows 10 Home 64-bit
  • For Commercial: Windows 10 Pro 64-bit
Free upgrade to Windows 11
Built-in Apps
  • Microsoft Office 30-days trial
  • McAfee® Small Business Security 30 Day Free Trial
Microsoft Office 365 30-days trial

Camera & Audio

Dell Precision 7740Surface Book 3
Camera
  • Front-facing camera
    Top-mount front camera with fixed focus lens, 0.92 Megapixels (1280 x 720 HD) at 30 fps.
  • Optional Windows Hello Infrared Camera
    0.30 Megapixels (340 x 340) at 60 fps.
  • Windows Hello face authentication camera (front-facing)
  • 5.0MP front-facing camera with 1080p HD video
  • 8.0MP rear-facing autofocus camera with 1080p HD video
Audio
  • Realtek ALC3281 MaxxAudio® Pro by Waves
  • Two speakers (2W x 2)
  • Noise-reducing array microphones
  • Dual far-field Studio Mics
  • Front-facing stereo speakers with Dolby Atmos®
    • Support for Windows Sonic for Headphones
    • Support for Dolby® Atmos for Headphones

Misc

Dell Precision 7740Surface Book 3
Inking-Supports Surface Pen
4096 levels of pressure
Tilt sensing
Best in class latency
Paper feel
0.1mm precision
Sensors
  • An optional fingerprint reader on the power button
  • Ambient light sensor
  • Proximity sensor
  • Accelerometer
  • Gyroscope
  • Magnetometer
Security
  • Intel® vPro™ Technology (iAMT 12) (optional, requires Intel WiFi® Link WLAN and a vPro compatible processor), Dell Client Command Suite available (dell.com/command), Factory Installed Dell Client Command | Update, Dell Command | Power Manager,
  • Intel® Platform Trust Technology,
  • Trusted Platform Module (TPM) 2.0
  • Chassis wedge-shaped security lock
  • Support for Computrace and SmartCard Reader
  • Fingerprint reader or FIPS Fingerprint reader
  • Touch Fingerprint Reader with Control Vault 3.0 (Advanced Authentication with FIPS 140-2 Level 3 Certification)
  • Contacted Smart Card (FIPS 201 with Control Vault 3.0 Advanced Authentication with FIPS 140-2 level 3 Certification)
  • Contactless Smart Card
  • NFC/CSC (Check regional availability)
  • HW TPM 2.0 chip for enterprise security
  • Enterprise-grade protection with Windows Hello face sign-in
In the box-
  • Surface Book 3
  • Power supply
  • Quick Start Guide
  • Safety and warranty documents
Warranty3 Years Hardware Service with Onsite Service After Remote DiagnosisOne-year limited hardware warranty
More-Supports Surface Dial
Supports both on-screen and off-screen interaction.

Key Features

Dell Precision 7740Surface Book 3
At Glance
Released in
2019
16:9 4K UHD
17.3”
2160p 60Hz
Weight
6.79 lb
3.08 kg
Up to
Intel Xeon E-2286M
8C/16T, 2.40 → 5.00 GHz
Geekbench 5
1,192
Single Core
Geekbench 5
6,910
Multi-Core
With integrated
Intel® UHD Graphics P630
24 Execution Units, 350 → 1250 MHz
Upgradable up to
128GB
3200 MHz DDR4 ECC
Dell Precision 7740 Ports
Nvidia Quadro
RTX 5000
16GB GDDR6
Released in
2020
3:2 3.2K
13.5”
2160p 60Hz
Weight
3.38 lb
1.53 kg
Up to
Intel Core i7-1065G7
4C/8T, 1.30 → 3.90 GHz
Geekbench 5
1,088
Single Core
Geekbench 5
3,722
Multi-Core
With integrated
Intel® Iris® Plus Graphics
64 Execution Units, 300 → 1100 MHz
Configurable up to
32GB
3733 MHz LPDDR4X
Surface Book 3 Ports
Nvidia GeForce
RTX 3000
6GB GDDR6 with Max-Q

Comparison Summary

Dell Precision 7740 vs. Surface Book 3

Dell has released the Precision 7740, a 17.3-inch machine, in 2019. It is powered by up to an octa-core Intel Xeon E-2286M with a boost clock speed up to 5.00 GHz. The laptop has a dedicated GPU option up to Nvidia Quadro RTX 5000 with 16GB GDDR6.

On the other hand, we have the 13.5-inch Surface Book 3 was introduced by Microsoft about a year later in 2020. It comes with up to a quad-core Intel Core i7-1065G7 with a boost clock speed up to 3.90 GHz. It has a dedicated GPU option up to Nvidia GeForce RTX 3000 with 6GB GDDR6 with Max-Q.

Geekbench 5 Single Core

Dell Precision 77401
9th Gen Intel® Core™ i5-9400H98482.55%
2
9th Gen Intel® Core™ i7-9750H1,04487.58%
3
9th Gen Intel® Core™ i7-9850H1,08090.60%
4
9th Gen Intel® Core™ i9-9880H1,06689.43%
5
9th Gen Intel® Core™ i9-9980HK1,11493.46%
6
Intel Xeon E-2276M1,12093.96%
7
Intel Xeon E-2286M1,192100.00%
Surface Book 31
10th Gen Intel® Core™ i5-1035G71,00284.06%
2
10th Gen Intel® Core™ i7-1065G71,08891.28%
01,192

Geekbench 5 Multi Core

Dell Precision 77401
9th Gen Intel® Core™ i5-9400H3,69053.40%
2
9th Gen Intel® Core™ i7-9750H4,88070.62%
3
9th Gen Intel® Core™ i7-9850H4,91471.11%
4
9th Gen Intel® Core™ i9-9880H6,10088.28%
5
9th Gen Intel® Core™ i9-9980HK6,50494.12%
6
Intel Xeon E-2276M5,16574.75%
7
Intel Xeon E-2286M6,910100.00%
Surface Book 31
10th Gen Intel® Core™ i5-1035G73,69153.42%
2
10th Gen Intel® Core™ i7-1065G73,72253.86%
06,910

The Dell Precision 7740 has a 17.3-inch display which is considerably larger than the 13.5-inch Surface Book 3. In addition, the Dell Precision 7740 weighs 6.79 lbs. about 100% heavier than the 3.38 lbs. Surface Book 3. Moreover, measured at 16.3” x 10.7” x 1.19”, the Dell Precision 7740 is much bulkier than the Surface Book 3 at 12.3” x 9.14” x 0.9”.

Dell Precision 7740Surface Book 3

Moving over to upgradability, Dell claims that the Dell Precision 7740 supports up to 128GB 3200 MHz DDR4 ECC memory that you can upgrade with four memory module slots on the motherboard. It also comes with four M.2 slots that users can easily upgrade and install additional SSDs to expand the storage on the device. On top of that, it also has a single SATA slot that users can use to install a 2.5-inch SATA SSD, SSHD, or a hard disk drive to add even more storage.

For Surface Book 3, it supports up to 32GB 3733 MHz LPDDR4X memory. Unlike Dell Precision 7740, it has an onboard memory module that is not upgradable by the users.

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