AMD Ryzen 9 7945HX: The Fastest Mobile Processor Yet


AMD has recently launched its newest high-end laptop processor, the AMD Ryzen 9 7945HX, which belongs to the Dragon Range series. The processor is built on the Zen 4 architecture and boasts of 16 cores with support for hyperthreading, which translates to 32 threads. The cores can clock from a base of 2.5 GHz to a maximum of 5.4 GHz on a single core boost. With these features, the Ryzen 9 7945HX is the fastest mobile Ryzen CPU at launch and is derived from the desktop Ryzen 9 7950X.

The Ryzen 9 7945HX's performance is comparable to the Core i9-13900HX, which belongs to the Raptor Lake series and has 24 hybrid cores and a maximum clock speed of 5.4 GHz. It is targeted at high-end gaming laptops and is advertised by AMD as being significantly faster than the Ryzen 9 6900HX, which has eight Zen 3 cores and a maximum clock speed of 4.9 GHz. This speed difference is mainly due to the higher core count, clock speed, and improved architecture of the Ryzen 9 7945HX.

The Dragon Range series still uses a chiplet design that has two CCD-clusters, each having eight possible cores, and an IO-die that includes the memory controller and the Radeon 610M iGPU, all built on the 6nm and 5nm manufacturing technologies, respectively. The chip integrates 4x USB 3.2 Gen2 (10 Gbps) ports (no USB4), 28 PCIe 5.0 lanes (for GPU and SSDs), and a dual-channel DDR5-5200 memory controller.

The Ryzen 9 7945HX has a TDP (Thermal Design Power) of 55 Watt and can be configured up to 75 Watt (cTDP). The processor is rated at a maximum temperature of 100 °C and has 64 MB of L3 cache, 16 MB of L2 cache, and 1 MB of L1 cache. The processor supports 64-bit computing and is built on the x86 architecture.

In terms of competition, Intel's Core i9-11980HK processor, which is part of the Tiger Lake-H series, has been AMD's main competitor in the high-end laptop processor market. The Ryzen 9 7945HX is expected to be competitive with the Core i9-11980HK in terms of performance, although the latter is slightly faster, clocking at a base speed of 2.6 GHz and a maximum of 5.0 GHz.

The Ryzen 9 7945HX's availability will depend on the OEM's adoption of the processor. As of now, ASUS has announced that the processor will be included in their upcoming ROG Strix SCAR 17 and ROG Strix G17 laptops. Other OEMs, including Lenovo, HP, and Dell, are expected to adopt the Ryzen 9 7945HX in their high-end gaming laptops.

AMD has also launched the Ryzen 7 7745HX and Ryzen 5 7645HX processors as part of the Dragon Range series, which have eight and six cores, respectively. These processors also have support for hyperthreading and are built on the Zen 4 architecture.

In conclusion, AMD's Ryzen 9 7945HX is a powerful high-end laptop processor that is designed for gaming laptops. With its 16 cores, support for hyperthreading, and clock speeds of up to 5.4 GHz, the processor is expected to offer top-notch performance. Although it faces stiff competition from Intel's Core i9-11980HK, the Ryzen 9 7945HX's

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