AMD Ryzen 7 PRO 7840HS

The AMD Ryzen 7 PRO 7840HS is a fast high-end laptop processor of the Phoenix series. It offers 8 cores (octa core) based on the Zen 4 architecture that supports hyperthreading (16 threads). The cores clock from 3.8 (base) up to 5.1 GHz (single core boost). The processor includes 8 MB L2 cache and 16 MB L3 cache.

Compared to the consumer Ryzen 7 7840HS, the PRO models offer additional security, manageability, and reliability features designed for professional users and workstation environments.

The performance of the R7 PRO 7840HS is only slightly below the fastest model, the R9 PRO 7940HS, as the clock speed difference is only minimal (e.g. -100 MHz / 2% slower single core boost). Therefore, the CPU should also perform slightly higher than the old top model Ryzen 9 6980HX (8 Zen 3 cores with up to 4.9 GHz) at 54W TDP and Ryzen 9 6980HS at 35W TDP. Compared to the higher end Dragon Range series, the 7840HS should be similar to the Ryzen 7 7745HX (also 8 Zen 4 cores, max 5.1 GHz, 55W TDP, 32 MB L3).

The chip integrates a modern and fast RDNA 3 graphics adapter (iGPU) called Radeon 780M with 12 CUs and up to 2.7 GHz clock speed. Furthermore, the Phoenix series include a video engine with AV1 de- and encoding, a new Xilinx FPGA based XDNA AI accelerator (Ryzen AI) that should be faster than the AI engine in the Apple M2 SOC and a dual-channel DDR5-5600 / LPDDR5x-7500 memory controller (with ECC support). The connectivity features includes 2 possible USB 4 (40 Gbps) ports and 20 PCIe 4.0 lanes for a GPU and SSDs.

The Phoenix series uses a single monolithic design (unlike the chiplet design of the 7045HX series) and is manufactured on the modern 4nm process at TSMC. The TDP can be configured between 35 and 45 Watt.

Series	AMD Phoenix (Zen 4, Ryzen 7040)
Codename	Phoenix-HS (Zen 4)
Series: Phoenix (Zen 4, Ryzen 7040) Phoenix-HS (Zen 4) AMD Ryzen 9 7940HS 4 - 5.2 GHz 8 / 16  16 MB L3 AMD Ryzen 9 PRO 7940HS 4 - 5.2 GHz 8 / 16  16 MB L3 AMD Ryzen 7 7840HS 3.8 - 5.1 GHz 8 / 16  16 MB L3 AMD Ryzen 7 7840S 3.8 - 5.1 GHz 8 / 16  16 MB L3 AMD Ryzen 7 PRO 7840HS « 3.8 - 5.1 GHz 8 / 16  16 MB L3 AMD Ryzen 5 7640HS 4.3 - 5 GHz 6 / 12  16 MB L3
Clock Rate	3800 - 5100 MHz
Level 1 Cache	512 KB
Level 2 Cache	8 MB
Level 3 Cache	16 MB
Number of Cores / Threads	8 / 16 8 x 5.1 GHz AMD Zen 4
Power Consumption (TDP = Thermal Design Power)	35 Watt
Manufacturing Technology	4 nm
Die Size	178 mm2
Max. Temperature	100 °C
Socket	FP7/FP8
GPU	AMD Radeon 780M ( - 2700 MHz)
64 Bit	64 Bit support
Architecture	x86
Announcement Date	06/13/2023
Product Link (external)	www.amd.com

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