The AMD Ryzen 9 7845HX is a high-performance laptop processor that was released in late 2022. It is part of the Dragon Range series, which is based on the Zen 4 architecture. The processor has 12 cores and 24 threads, making it ideal for tasks that require high levels of multitasking and processing power.
One of the main advantages of the Ryzen 9 7845HX is its clock speed. The processor can run at a base clock of 3 GHz and can boost up to 5.2 GHz on a single core. This makes it one of the fastest mobile processors available in the market. The higher clock speed allows the processor to complete tasks faster and also helps with running demanding applications and games smoothly.
The Ryzen 9 7845HX uses a chiplet design with two CCD clusters, each with 8 possible cores, in 5nm and an IO-die in 6nm. The chiplet design allows for better power efficiency and better thermal performance. The IO-die includes the memory controller and the Radeon 610M iGPU. The chiplet design also allows for better customization of the processor, which can be tailored to specific applications and workloads.
The Ryzen 9 7845HX has a TDP of 55 watts and can be configured from 45 to 75 watts. The lower TDP allows for longer battery life, while the higher TDP provides more processing power when needed. The processor is also highly efficient, which means that it can deliver high performance without consuming too much power.
The processor has a dual-channel DDR5-5200 memory controller, which allows for faster memory access and lower latency. This means that applications can load and run faster, which leads to better overall performance. The memory controller also supports ECC memory, which is essential for applications that require high levels of reliability and data integrity.
The Ryzen 9 7845HX also has 28 PCIe 5.0 lanes, which allows for high-speed data transfer and faster access to storage devices. The processor also has 4x USB 3.2 Gen2 (10 Gbps) ports, which provide high-speed connectivity for external devices. However, the processor does not support USB4, which may be a drawback for some users.
The processor also comes with an integrated Radeon 610M iGPU, which is based on the RDNA 2 architecture. The iGPU has a clock speed of 400-2200 MHz and can handle most casual gaming and graphics-intensive applications. However, for more demanding applications, an external GPU may be required.
In terms of benchmarks, the Ryzen 9 7845HX is significantly faster than the previous top model Ryzen 9 6980HX. The higher core count, improved architecture, and higher clock speed result in faster performance and better multitasking capabilities. The processor also performs well in single-core performance, making it suitable for applications that require high levels of single-core processing power.
Overall, the AMD Ryzen 9 7845HX is an excellent processor for high-end laptops that require high levels of performance and multitasking capabilities. The processor's high clock speed, efficient design, and advanced features make it a top choice for gamers, content creators, and professionals who require high levels of processing power. The processor's only drawback is the lack of support for USB4, but this is a minor issue compared to the processor's many benefits.