The GD32H757xx devices belong to the high-performance series of the GD32 MCU family. They are new 32-bit general-purpose microcontrollers based on the Arm Cortex-M7 core, offering the best cost-performance ratio in enhanced processing power, reduced power consumption, and peripheral configuration. The Arm Cortex-M7 processor is a highly efficient, high-performance embedded processor featuring low interrupt latency, low-cost debugging, and compatibility with existing Cortex-M series processors. This processor employs an in-order superscalar pipeline, enabling dual-issue of many instructions, including load/load and load/store instruction pairs, thanks to its multiple memory interfaces. The Cortex-M7 is a high-performance processor with a 6-stage superscalar pipeline, branch prediction, and an optional floating-point unit (FPU) supporting single-precision operations, with optional support for double-precision operations. The instruction and data bus widths have been expanded from 32-bit to 64-bit. It also provides a Memory Protection Unit (MPU) and robust trace technology to enhance application security and offer advanced debugging support. The GD32H757xx devices integrate an Arm Cortex-M7 32-bit processor core operating at 600 MHz, with Flash security protection to prevent unauthorized code/data access. They offer up to 3840 KB of on-chip Flash memory, 512 KB AXI SRAM, and 512 KB shared (ITCM/DTCM/AXI) RAM. A rich set of enhanced I/Os and peripherals are connected to four APB buses. The devices provide up to two 14-bit 4 MSPS ADCs, one 12-bit 5.3 MSPS ADC, one 12-bit DAC, up to twelve general-purpose 16-bit timers, two 16-bit PWM advanced timers, four 32-bit general-purpose timers, and four 16-bit basic timers, as well as standard and advanced communication interfaces: up to six SPIs, two OSPIs, four I2Cs, four USARTs and four UARTs, four I2Ss, three CAN-FDs, one USBHS, one ENET, two SDIOs, and one MDIO. Additionally, they include peripherals such as a digital camera interface (DCI), an EXMC interface supporting SDRAM expansion, a TFT-LCD interface (TLI), an image processing accelerator (IPA), a serial audio interface (SAI), a Sony/Philips digital interface receiver (RSPDIF), a filter arithmetic accelerator (FAC), real-time decryption (RTDEC), and a high-performance digital filter module (HPDF). The devices operate within a voltage range of 1.71V to 3.6V, with an industrial-grade 6 operating temperature range of -40 to 85°C and an industrial-grade 7 range of -40 to 105°C. Three power-saving modes offer flexible optimization for power consumption, which is particularly important for low-power applications. These features make the GD32H757xx devices suitable for a wide range of connected and advanced applications, especially in industrial control, consumer and handheld devices, embedded modules, human-machine interfaces, security alarm systems, energy storage systems, graphic displays, audio players, automotive navigation, drones, IoT, and more.