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AMD Ryzen 9 7845HX

AMD R9 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).

SeriesAMD Dragon Range (Zen 4, Ryzen 7045)
CodenameDragon Range (Zen4)

Series: Dragon Range (Zen 4, Ryzen 7045) Dragon Range (Zen4)

AMD Ryzen 9 7945HX compare2.5 - 5.4 GHz16 / 32 cores64 MB L3
AMD Ryzen 9 7845HX « 3 - 5.2 GHz12 / 24 cores64 MB L3
AMD Ryzen 7 7745HX compare3.6 - 5.1 GHz8 / 16 cores32 MB L3
AMD Ryzen 5 7645HX compare4 - 5 GHz6 / 12 cores32 MB L3
Clock Rate3000 - 5200 MHz
Level 1 Cache768 KB
Level 2 Cache12 MB
Level 3 Cache64 MB
Number of Cores / Threads12 / 24
Power Consumption (TDP = Thermal Design Power)55 Watt
Transistor Count9900 Million
Manufacturing Technology5 nm (CCD), 6 (I/O) nm
Max. Temperature100 °C
SocketFL1
GPUAMD Radeon 610M (400 - 2200 MHz)
64 Bit64 Bit support
Architecturex86
Announcement Date01/05/2023
Product Link (external)AMD Dragon Range (Zen 4, Ryzen 7045) R9 7845HX

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Other CPUs of the series Dragon Range (Zen 4, Ryzen 7045)

» AMD Ryzen 9 7945HX
   16x 2.5 GHz - 5.4 GHz
» AMD Ryzen 9 7845HX
   12x 3 GHz - 5.2 GHz
» AMD Ryzen 7 7745HX
   8x 3.6 GHz - 5.1 GHz
» AMD Ryzen 5 7645HX
   6x 4 GHz - 5 GHz

Surrounding CPUs

+ Intel Core i9-13900HX
   24x 1.6 GHz - 5.4 GHz
+ Intel Core i9-12950HX
   16x 1.7 GHz - 5 GHz
+ Intel Core i9-12900HX
   16x 1.7 GHz - 5 GHz
+ Intel Core i7-13850HX
   20x 1.5 GHz - 5.3 GHz
+ Intel Core i7-13700HX
   16x 1.5 GHz - 5 GHz
» AMD Ryzen 9 7845HX
   12x 3 GHz - 5.2 GHz
- Intel Core i7-12850HX
   16x 1.5 GHz - 4.8 GHz
- Intel Core i7-12800HX
   16x 1.5 GHz - 4.8 GHz
- Intel Core i9-13900HK
   14x 1.9 GHz - 5.4 GHz
- Intel Core i9-13905H
   14x 1.9 GHz - 5.4 GHz
- Intel Core i9-13900H
   14x 1.9 GHz - 5.4 GHz
> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > AMD Ryzen 9 7845HX Processor - Benchmarks and Specs
Klaus Hinum (Update: 2023-01- 9)