AMD Ryzen 9 7845HX

The AMD Ryzen 9 7845HX is a fast high-end laptop processor of the Dragon Range series. It offers 12 of the 16 cores based on the Zen 4 architecture that supports hyperthreading (24 threads). The cores clock from 3 (base) up to 5.2 GHz (single core boost). The 7845HX is the second-fastest mobile Ryzen CPU at launch and derived from the desktop Ryzen 9 7900X.

The performance of the R9 7845HX is significantly faster than the old top model Ryzen 9 6980HX (8 Zen 3 cores, 5 GHz max) thanks to the higher core count, improved architecture and higher clock speed.

The Dragon Range series still uses a chiplet design with two CCD-clusters (each with 8 possible cores) in 5nm and an IO-die (including the memory controller and the Radeon 610M iGPU) in 6nm. 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 R9 7845HX is rated at a TDP of 55 Watt and can be configured from 45 to 75 Watt (cTDP).

Series	AMD Dragon Range (Zen 4, Ryzen 7045)
Codename	Dragon Range (Zen4)
Series: Dragon Range (Zen 4, Ryzen 7045) Dragon Range (Zen4) AMD Ryzen 9 7945HX 2.5 - 5.4 GHz 16 / 32  64 MB L3 AMD Ryzen 9 7845HX « 3 - 5.2 GHz 12 / 24  64 MB L3 AMD Ryzen 7 7745HX 3.6 - 5.1 GHz 8 / 16  32 MB L3 AMD Ryzen 5 7645HX 4 - 5 GHz 6 / 12  32 MB L3
Clock Rate	3000 - 5200 MHz
Level 1 Cache	768 KB
Level 2 Cache	12 MB
Level 3 Cache	64 MB
Number of Cores / Threads	12 / 24
Power Consumption (TDP = Thermal Design Power)	55 Watt
Transistor Count	9900 Million
Manufacturing Technology	5 nm (CCD), 6 (I/O) nm
Max. Temperature	100 °C
Socket	FL1
GPU	AMD Radeon 610M (400 - 2200 MHz)
64 Bit	64 Bit support
Architecture	x86
Announcement Date	01/05/2023
Product Link (external)	AMD Dragon Range (Zen 4, Ryzen 7045) R9 7845HX

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