The Samsung Galaxy Book3 15.6″ has a physical footprint of 356mm wide by 229mm tall, with a thickness of just 15mm and a total volume of 1,222.86 cm³. It weighs 1,601 grams, which is a reasonable carry weight for a 15.6-inch laptop. The chassis is not fanless, meaning it uses active cooling, and it is not weather-sealed or splashproof. On the plus side, it includes a backlit keyboard for use in low-light environments. The device comes with a one-year warranty.
The Galaxy Book3 15.6″ features a 15.6-inch LED-backlit display with a resolution of 1920x1080 pixels and a pixel density of 141 ppi. The panel operates at a 60Hz refresh rate and does not include a touch layer or anti-reflection coating. The system supports up to 4 external displays simultaneously, which broadens its utility for multi-monitor setups.
The Galaxy Book3 15.6″ is powered by a processor with two performance cores running at 1.7GHz and eight efficiency cores at 1.2GHz, reaching a turbo clock speed of 5GHz across 12 threads, though it does not support simultaneous multithreading. It is built on a 10nm semiconductor process and supports 64-bit operation. The system ships with 16GB of DDR4 RAM at 4266MHz, with the platform supporting up to 64GB. Storage comes in the form of a 1TB NVMe SSD connected over PCIe 4, offering fast flash-based access. The integrated GPU runs at a base clock of 400MHz with a turbo of 1300MHz and supports DirectX 12.
In standardized benchmark testing, the Galaxy Book3 15.6″ scores 7122 in Geekbench 6 multi-core and 2458 in the single-core test, reflecting the processor's distribution of workload across its core configuration. On the PassMark suite, the system achieves an overall score of 14252, with a single-core result of 3436.
The Galaxy Book3 15.6″ offers a practical port selection built around two USB 3.2 Gen 2 Type-C and two USB 3.2 Gen 2 Type-A ports, with no Thunderbolt 3 or 4, USB 4, DisplayPort, mini DisplayPort, or VGA connectivity present. Video output is handled by a single HDMI 1.4 port, and there is no RJ45 port for wired networking. Wireless connectivity covers Wi-Fi 6 (802.11ax) alongside backwards-compatible Wi-Fi 5 and Wi-Fi 4, paired with Bluetooth 5.1. The laptop also includes an external memory card slot and supports AirPlay.
The Galaxy Book3 15.6″ carries a rated battery life of 13 hours and returns to a full charge in 2.5 hours. It does not include sleep-and-charge USB ports or a MagSafe power adapter.
The Galaxy Book3 15.6″ includes stereo speakers with Dolby Atmos support and a 3.5mm headset jack for audio output, though it lacks an S/PDIF port and an optical disc drive. A 1MP front-facing camera is built in alongside a single microphone, but there is no 3D facial recognition or voice command functionality. Security is handled through a fingerprint scanner. The laptop includes an accelerometer but does not feature a gyroscope, compass, or GPS. No stylus is included in the box.
The processor in the Galaxy Book3 15.6″ is a laptop-class chip with a clock multiplier of 17 and a TDP of 15W, operating with a maximum CPU temperature of 100°C. It uses big.LITTLE technology to balance performance and efficiency cores, supports the NX bit for hardware-level security, and does not have an unlocked multiplier. The CPU works across two memory channels with a maximum supported RAM speed of 5200MHz, though ECC memory is not supported. Instruction set support includes SSE 4.1, SSE 4.2, AVX, AES, FMA3, F16C, and MMX. Cache configuration sits at 9.5MB of L2 and 12MB of L3. Graphics are handled by the integrated Intel Iris Xe with 96 execution units, 768 shading units, 48 TMUs, and 24 ROPs, with support for OpenCL 3 and OpenGL 4.6.
