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💻 ASUS ExpertBook B3 vs MacBook Pro 14 M5 vs Dell Pro Premium 14
AI-powered analysis across 24 matched specifications
ExpertBook B3 (B3404)
ASUS
Overall Score
Best for organisations needing internal memory upgradeability, legacy RJ45 connectivity, and dedicated entry-level graphics
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MacBook Pro 14" (M5)
Apple
Overall Score
Best for power users requiring extreme unified memory capacity, industry-leading HDR display brightness, and extensive battery endurance
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Dell Pro 14 Premium
Dell
Overall Score
Best for mobile professionals prioritising sub-1.2 kg travel weight, enterprise vPro remote management, and optional cellular connectivity
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Performance Overview
Scores based on quantifiable specification values (1-10 scale)
ExpertBook B3 (B3404)
MacBook Pro 14" (M5)
Dell Pro 14 Premium
Performance
ExpertBook B3 (B3404)
6.8
MacBook Pro 14" (M5)
9.5
Dell Pro 14 Premium
7.4
Display
ExpertBook B3 (B3404)
6.2
MacBook Pro 14" (M5)
9.8
Dell Pro 14 Premium
7.9
Battery & Thermals
ExpertBook B3 (B3404)
6.5
MacBook Pro 14" (M5)
9.4
Dell Pro 14 Premium
7.8
Manageability & Security
ExpertBook B3 (B3404)
7.3
MacBook Pro 14" (M5)
7.0
Dell Pro 14 Premium
9.2
Expandability & Repair
ExpertBook B3 (B3404)
8.8
MacBook Pro 14" (M5)
4.5
Dell Pro 14 Premium
6.2
Ecosystem & Software
ExpertBook B3 (B3404)
7.2
MacBook Pro 14" (M5)
8.8
Dell Pro 14 Premium
8.2
Value
ExpertBook B3 (B3404)
7.4
MacBook Pro 14" (M5)
8.2
Dell Pro 14 Premium
7.7
Detailed Specifications
| Specification | ExpertBook B3 (B3404) ASUS | MacBook Pro 14" (M5) Apple | Dell Pro 14 Premium Dell |
|---|---|---|---|
| Performance | |||
| Processor | Intel Core Ultra 7 155U / Core Ultra 5 125U (AI Boost NPU), or 13th-gen Core i7-1355U / i5-1335U / i5-1340P | M5 (10C CPU, 10C GPU) / M5 Pro (up to 14C CPU, 20C GPU) / M5 Max (up to 16C CPU, 40C GPU) | Copilot+ Intel Core Ultra 200V "Lunar Lake", 8C/8T, 17.5 W, vPro Enterprise — Ultra 5 236V / 238V (4.7 GHz, 8 MB) or Ultra 7 266V / 268V (5 GHz, 12 MB) |
| CPU cores | -- | M5: 10-core CPU · M5 Pro: up to 14-core CPU · M5 Max: up to 16-core CPU | 8C/8T (Copilot+ Lunar Lake, 17.5 W) |
| Graphics | Intel integrated; optional NVIDIA GeForce RTX 2050 (B3404CVF) | M5: 10-core GPU · M5 Pro: up to 20-core GPU · M5 Max: up to 40-core GPU | Intel Arc 130V (Ultra 5) / Arc 140V (Ultra 7), integrated |
| Discrete GPU | ✓Optional NVIDIA GeForce RTX 2050 (B3404CVF) | Integrated Apple silicon GPU (M5 / M5 Pro / M5 Max SoC) | Integrated Intel Arc graphics |
| Memory & storage | |||
| Maximum memory | DDR5 SO-DIMM, 2 slots, up to 32 GB (user-upgradeable) | ✓M5: up to 32 GB · M5 Pro: up to 48 GB · M5 Max: up to 128 GB unified memory | 16 or 32 GB LPDDR5x-8533 on-package — fixed at order, not upgradeable; platform maximum 32 GB |
| Memory type | DDR5 SO-DIMM, 2 slots (user-upgradeable) | Unified memory | LPDDR5x-8533 on-package (fixed at order) |
| Maximum storage | Up to 1 TB M.2 2280 PCIe 4.0 NVMe SSD; TCG Opal 2.0 SED option; second M.2 2230 slot on select SKUs | Up to 8 TB SSD | 512 GB M.2 2230 PCIe Gen4 x4 NVMe TLC on all six; platform options 256 GB–2 TB including 512 GB SED Opal 2.0 |
| Display | |||
| Display size | 14.0" | 14.2" | 14.0" |
| Resolution | 1920 x 1200 | 3024 × 1964 | 1920 × 1200 (QHD+ 2880 × 1800 Tandem OLED on VPJ93) |
| Brightness | 300 nits | ✓1000-nit sustained / 1600-nit peak HDR | 400 nits |
| Panel | 14.0" WUXGA (1920 x 1200) IPS 16:10, 300 nits, anti-glare; WQXGA (2560 x 1600) 500-nit touch option (CVF) | Liquid Retina XDR mini-LED, ProMotion 10-120 Hz, P3 wide colour | 14.0" 16:10 — FHD+ 1920 × 1200 anti-glare, 400 nits, 100% sRGB, 1200:1, ComfortView Plus (five stocked builds); QHD+ 2880 × 1800 Tandem OLED touch, 400 nits, 100% DCI-P3, Gorilla Glass Victus (VPJ93) |
| Touchscreen | WQXGA (2560 x 1600) 500-nit touch option (CVF) | -- | QHD+ 2880 × 1800 Tandem OLED touchscreen (VPJ93 build) |
| Connectivity | |||
| Thunderbolt / USB4 ports | Thunderbolt 4 (USB4) | ✓3× Thunderbolt 4 (M5) or Thunderbolt 5 (M5 Pro / Max) | 2× Thunderbolt 4 (USB-C, DisplayPort alt mode, Power Delivery) — either TB4 port charges the machine |
| Ports | Thunderbolt 4 (USB4), 2x USB 3.2 Gen 2 Type-A, USB 3.2 Gen 2 Type-C (PD), HDMI 2.1, RJ45 Gigabit LAN, smart-card reader, 3.5 mm combo | MagSafe 3, 3× Thunderbolt 4 (M5) or Thunderbolt 5 (M5 Pro / Max), HDMI 2.1, SD card (UHS-II), 3.5 mm combo | Left: Thunderbolt 4 (USB-C, DisplayPort alt mode, Power Delivery), HDMI 2.1, universal audio jack, battery LED. Right: Thunderbolt 4, USB-A 3.2 Gen 1 with PowerShare, wedge lock slot (nano-SIM tray on 5G builds only) |
| Mobile broadband (4G/5G) option | -- | -- | Optional 5G (Snapdragon X72, eSIM) to order — stocked builds are WLAN-only |
| Physical | |||
| Weight (from) | From 1.40 kg (3.09 lb); from 1.54 kg with discrete GPU | From 1.55 kg (3.4 lb) — M5; up to 1.62 kg M5 Max | ✓From 1.14 kg (2.52 lb), configuration-dependent |
| Dimensions | 313.7 x 226.8 x 19.9-23.9 mm | 312.6 × 221.2 × 15.5 mm | 311.2 × 216.7 mm, 16.4 mm (front) – 17.0 mm (rear) |
| Security & management | |||
| Intel vPro | -- | N/A — Apple silicon (Secure Enclave) | Copilot+ Intel Core Ultra 200V vPro Enterprise — vPro Enterprise on every stocked build |
| Secured-core PC | -- | N/A — Secured-core PC is a Windows feature; Apple silicon uses the Secure Enclave | -- |
| Copilot+ PC (40+ TOPS NPU) | -- | N/A — Copilot+ PC is a Windows programme; Apple ships Apple Intelligence | Intel AI Boost — up to 40 TOPS (Ultra 5) or 48 TOPS (Ultra 7); Copilot+ PC on all stocked builds |
| Battery | |||
| Battery capacity | 50 Wh (63 Wh on CVF), 3-cell Li-ion; 65 W / 90 W USB-C charging | ✓72.4 Wh — up to 24 hours video / 18 hours wireless web (M5) | 3-cell 60 Wh, customer-replaceable |
| Rated battery life | -- | Up to 24 hours video / 18 hours wireless web (M5) | ExpressCharge Boost 0–35% in 20 min, ExpressCharge 0–80% in 60 min; charges via either TB4 port; 60/65/100 W USB-C adapters |
| Support | |||
| Operating system | Windows 11 Pro (no-OS option on CVF) | macOS Tahoe (with Apple Intelligence) | Windows 11 Pro (stocked); Windows 11 23H2/24H2, Windows 10 22H2 downgrade and Ubuntu 24.04 LTS supported |
| Base warranty | 1-year commercial warranty; ASUS extended / on-site uplift available | 1-year limited; AppleCare+ for Business extends to 3 years + ADP | Dell business warranty — cover level varies by configuration; ProSupport uplifts quoted |
Performance
Processor
ExpertBook B3 (B3404)Intel Core Ultra 7 155U / Core Ultra 5 125U (AI Boost NPU), or 13th-gen Core i7-1355U / i5-1335U / i5-1340P
MacBook Pro 14" (M5)M5 (10C CPU, 10C GPU) / M5 Pro (up to 14C CPU, 20C GPU) / M5 Max (up to 16C CPU, 40C GPU)
Dell Pro 14 PremiumCopilot+ Intel Core Ultra 200V "Lunar Lake", 8C/8T, 17.5 W, vPro Enterprise — Ultra 5 236V / 238V (4.7 GHz, 8 MB) or Ultra 7 266V / 268V (5 GHz, 12 MB)
CPU cores
ExpertBook B3 (B3404)--
MacBook Pro 14" (M5)M5: 10-core CPU · M5 Pro: up to 14-core CPU · M5 Max: up to 16-core CPU
Dell Pro 14 Premium8C/8T (Copilot+ Lunar Lake, 17.5 W)
Graphics
ExpertBook B3 (B3404)Intel integrated; optional NVIDIA GeForce RTX 2050 (B3404CVF)
MacBook Pro 14" (M5)M5: 10-core GPU · M5 Pro: up to 20-core GPU · M5 Max: up to 40-core GPU
Dell Pro 14 PremiumIntel Arc 130V (Ultra 5) / Arc 140V (Ultra 7), integrated
Discrete GPU
ExpertBook B3 (B3404)Optional NVIDIA GeForce RTX 2050 (B3404CVF)
MacBook Pro 14" (M5)Integrated Apple silicon GPU (M5 / M5 Pro / M5 Max SoC)
Dell Pro 14 PremiumIntegrated Intel Arc graphics
Memory & storage
Maximum memory
ExpertBook B3 (B3404)DDR5 SO-DIMM, 2 slots, up to 32 GB (user-upgradeable)
MacBook Pro 14" (M5)M5: up to 32 GB · M5 Pro: up to 48 GB · M5 Max: up to 128 GB unified memory
Dell Pro 14 Premium16 or 32 GB LPDDR5x-8533 on-package — fixed at order, not upgradeable; platform maximum 32 GB
Memory type
ExpertBook B3 (B3404)DDR5 SO-DIMM, 2 slots (user-upgradeable)
MacBook Pro 14" (M5)Unified memory
Dell Pro 14 PremiumLPDDR5x-8533 on-package (fixed at order)
Maximum storage
ExpertBook B3 (B3404)Up to 1 TB M.2 2280 PCIe 4.0 NVMe SSD; TCG Opal 2.0 SED option; second M.2 2230 slot on select SKUs
MacBook Pro 14" (M5)Up to 8 TB SSD
Dell Pro 14 Premium512 GB M.2 2230 PCIe Gen4 x4 NVMe TLC on all six; platform options 256 GB–2 TB including 512 GB SED Opal 2.0
Display
Display size
ExpertBook B3 (B3404)14.0"
MacBook Pro 14" (M5)14.2"
Dell Pro 14 Premium14.0"
Resolution
ExpertBook B3 (B3404)1920 x 1200
MacBook Pro 14" (M5)3024 × 1964
Dell Pro 14 Premium1920 × 1200 (QHD+ 2880 × 1800 Tandem OLED on VPJ93)
Brightness
ExpertBook B3 (B3404)300 nits
MacBook Pro 14" (M5)1000-nit sustained / 1600-nit peak HDR
Dell Pro 14 Premium400 nits
Panel
ExpertBook B3 (B3404)14.0" WUXGA (1920 x 1200) IPS 16:10, 300 nits, anti-glare; WQXGA (2560 x 1600) 500-nit touch option (CVF)
MacBook Pro 14" (M5)Liquid Retina XDR mini-LED, ProMotion 10-120 Hz, P3 wide colour
Dell Pro 14 Premium14.0" 16:10 — FHD+ 1920 × 1200 anti-glare, 400 nits, 100% sRGB, 1200:1, ComfortView Plus (five stocked builds); QHD+ 2880 × 1800 Tandem OLED touch, 400 nits, 100% DCI-P3, Gorilla Glass Victus (VPJ93)
Touchscreen
ExpertBook B3 (B3404)WQXGA (2560 x 1600) 500-nit touch option (CVF)
MacBook Pro 14" (M5)--
Dell Pro 14 PremiumQHD+ 2880 × 1800 Tandem OLED touchscreen (VPJ93 build)
Connectivity
Thunderbolt / USB4 ports
ExpertBook B3 (B3404)Thunderbolt 4 (USB4)
MacBook Pro 14" (M5)3× Thunderbolt 4 (M5) or Thunderbolt 5 (M5 Pro / Max)
Dell Pro 14 Premium2× Thunderbolt 4 (USB-C, DisplayPort alt mode, Power Delivery) — either TB4 port charges the machine
Ports
ExpertBook B3 (B3404)Thunderbolt 4 (USB4), 2x USB 3.2 Gen 2 Type-A, USB 3.2 Gen 2 Type-C (PD), HDMI 2.1, RJ45 Gigabit LAN, smart-card reader, 3.5 mm combo
MacBook Pro 14" (M5)MagSafe 3, 3× Thunderbolt 4 (M5) or Thunderbolt 5 (M5 Pro / Max), HDMI 2.1, SD card (UHS-II), 3.5 mm combo
Dell Pro 14 PremiumLeft: Thunderbolt 4 (USB-C, DisplayPort alt mode, Power Delivery), HDMI 2.1, universal audio jack, battery LED. Right: Thunderbolt 4, USB-A 3.2 Gen 1 with PowerShare, wedge lock slot (nano-SIM tray on 5G builds only)
Mobile broadband (4G/5G) option
ExpertBook B3 (B3404)--
MacBook Pro 14" (M5)--
Dell Pro 14 PremiumOptional 5G (Snapdragon X72, eSIM) to order — stocked builds are WLAN-only
Physical
Weight (from)
ExpertBook B3 (B3404)From 1.40 kg (3.09 lb); from 1.54 kg with discrete GPU
MacBook Pro 14" (M5)From 1.55 kg (3.4 lb) — M5; up to 1.62 kg M5 Max
Dell Pro 14 PremiumFrom 1.14 kg (2.52 lb), configuration-dependent
Dimensions
ExpertBook B3 (B3404)313.7 x 226.8 x 19.9-23.9 mm
MacBook Pro 14" (M5)312.6 × 221.2 × 15.5 mm
Dell Pro 14 Premium311.2 × 216.7 mm, 16.4 mm (front) – 17.0 mm (rear)
Security & management
Intel vPro
ExpertBook B3 (B3404)--
MacBook Pro 14" (M5)N/A — Apple silicon (Secure Enclave)
Dell Pro 14 PremiumCopilot+ Intel Core Ultra 200V vPro Enterprise — vPro Enterprise on every stocked build
Secured-core PC
ExpertBook B3 (B3404)--
MacBook Pro 14" (M5)N/A — Secured-core PC is a Windows feature; Apple silicon uses the Secure Enclave
Dell Pro 14 Premium--
Copilot+ PC (40+ TOPS NPU)
ExpertBook B3 (B3404)--
MacBook Pro 14" (M5)N/A — Copilot+ PC is a Windows programme; Apple ships Apple Intelligence
Dell Pro 14 PremiumIntel AI Boost — up to 40 TOPS (Ultra 5) or 48 TOPS (Ultra 7); Copilot+ PC on all stocked builds
Battery
Battery capacity
ExpertBook B3 (B3404)50 Wh (63 Wh on CVF), 3-cell Li-ion; 65 W / 90 W USB-C charging
MacBook Pro 14" (M5)72.4 Wh — up to 24 hours video / 18 hours wireless web (M5)
Dell Pro 14 Premium3-cell 60 Wh, customer-replaceable
Rated battery life
ExpertBook B3 (B3404)--
MacBook Pro 14" (M5)Up to 24 hours video / 18 hours wireless web (M5)
Dell Pro 14 PremiumExpressCharge Boost 0–35% in 20 min, ExpressCharge 0–80% in 60 min; charges via either TB4 port; 60/65/100 W USB-C adapters
Support
Operating system
ExpertBook B3 (B3404)Windows 11 Pro (no-OS option on CVF)
MacBook Pro 14" (M5)macOS Tahoe (with Apple Intelligence)
Dell Pro 14 PremiumWindows 11 Pro (stocked); Windows 11 23H2/24H2, Windows 10 22H2 downgrade and Ubuntu 24.04 LTS supported
Base warranty
ExpertBook B3 (B3404)1-year commercial warranty; ASUS extended / on-site uplift available
MacBook Pro 14" (M5)1-year limited; AppleCare+ for Business extends to 3 years + ADP
Dell Pro 14 PremiumDell business warranty — cover level varies by configuration; ProSupport uplifts quoted
★
Expert Analysis
Specs web-verified from manufacturer datasheets · Servnet-reviewed · Last reviewed 8 Sept 2026
For UK enterprise deployments, the Apple MacBook Pro 14 M5 provides the strongest computing platform and display quality, whereas the Dell Pro Premium 14 delivers an exceptionally lightweight, manageable Windows alternative, leaving the ASUS ExpertBook B3 as the choice for internal modularity. The MacBook Pro 14 leads in screen performance with a 1000-nit sustained and 1600-nit peak HDR Liquid Retina XDR panel, up to three Thunderbolt 5 ports, and a substantial 72.4 Wh battery capacity, alongside support for up to 128 GB of unified memory. The Dell Pro Premium 14 offers superior travel mobility with a starting weight of 1.14 kg, standard Intel vPro Enterprise management, Copilot+ PC compliance with up to 48 TOPS NPU performance, and optional 5G connectivity, though its LPDDR5x memory is fixed on-package. In contrast, the ASUS ExpertBook B3 excels in physical servicing and office connectivity, delivering two user-upgradeable DDR5 SO-DIMM slots, an optional discrete NVIDIA GeForce RTX 2050 GPU, dedicated RJ45 Ethernet, and a smart-card reader, countered by a bulkier chassis and an entry-level 300-nit standard display.
ExpertBook B3 (B3404)
Best for organisations needing internal memory upgradeability, legacy RJ45 connectivity, and dedicated entry-level graphics
MacBook Pro 14" (M5)
Best for power users requiring extreme unified memory capacity, industry-leading HDR display brightness, and extensive battery endurance
Dell Pro 14 Premium
Best for mobile professionals prioritising sub-1.2 kg travel weight, enterprise vPro remote management, and optional cellular connectivity
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ExpertBook B3 (B3404)
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