AMD Ryzen 7 8840HS

The Ryzen 7 8840HS is a powerful processor (APU) of the Hawk Point family. This isn't an entirely new laptop chip; instead, it's a rebadged Ryzen 7 7840U, the slightly higher wattage of the 8840HS being the only meaningful difference between the two. The 8840HS has eight Zen 4 cores running at 3.3 GHz to 5.1 GHz that are SMT-enabled for a total of 16 processing threads, while the great Radeon 780M is responsible for 3D processing and similar duties. The 8840HS also features the Ryzen AI technology, now in its 2nd generation.

Architecture & Features

Hawk Point family chips are powered by the Zen 4 architecture, much like Phoenix and Dragon Range family chips are. That's not to say there is no difference between the three. With Hawk Point, AMD is betting big on generative AI; these processors are set to deliver an up to 40% increase in generative AI performance over 7040 series APUs, making apps like DaVinci Resolve and Adobe Photoshop more useful than ever before.

Unlike Zen 3, Zen 4 features AVX512 support and, thanks to a plethora of other improvements including larger caches/registers/buffers, is slated to bring a double-digit IPC improvement over the former.

Elsewhere, the 8840HS has 16 MB of L3 cache and support for super-fast DDR5-5600 and LPDDR5x-7500 RAM. The chip is compatible with USB 4 and therefore with Thunderbolt. It comes with 20 PCIe 4 lanes, giving NVMe SSDs up to 7.8 GB/s of throughput.

Systems built around this Ryzen 7 series APU are designed to run 64-bit Windows 11, 64-bit Windows 10, or Linux. Please note that this processor is not overclockable and neither is it user-replaceable. It gets soldered down for good instead (FP7, FP7r2, FP8 socket interfaces).

Performance

Since this is a 7840U in disguise that we are dealing with here, it is safe to expect the 8840HS to be about as fast as the Core i7-12650H, as far as multi-thread performance is concerned.

Your mileage may vary depending on how high the CPU power limits are, and how competent the cooling solution of your laptop is.

Graphics

The Radeon 780M has 12 CUs (768 shaders) purring away at up to 2,700 MHz. This is exactly the right iGPU for people looking for a bit more horsepower than what Intel's aging Xe options can provide. The Radeon will let you use up to 4 monitors with resolutions as high as SUHD 4320p and it will also HW-decode and HW-encode the most widely used video codecs (including AV1, HEVC and AVC) without breaking a sweat. In terms of gaming, the thing is good enough for 1080p and medium-to-low settings, as of late 2023.

Your mileage may vary depending on how high the CPU power limits are, how competent the cooling solution of your system is, how fast the RAM of your system is (there is no dedicated VRAM here).

Power consumption

This Ryzen 7 series chip has a long-term power limit (default TDP) of 28 W that laptop makers are free to tune to their liking, with values between 20 W and 30 W greenlighted by AMD. Either way, an active cooling solution is a must for any system powered by this chip.

The 8840HS is built with TSMC's 4 nm process for high, as of late 2023, energy efficiency.

Series	AMD Hawk Point (Zen 4/4c, Ryzen 8040)
Codename	Hawk Point-HS (Zen 4)
Series: Hawk Point (Zen 4/4c, Ryzen 8040) Hawk Point-HS (Zen 4) AMD Ryzen 9 8945HS 4 - 5.2 GHz 8 / 16  16 MB L3 AMD Ryzen 9 PRO 8945HS 4 - 5.2 GHz 8 / 16  16 MB L3 AMD Ryzen 7 8845HS 3.8 - 5.1 GHz 8 / 16  16 MB L3 AMD Ryzen 7 8840HS « 3.3 - 5.1 GHz 8 / 16  16 MB L3 AMD Ryzen 5 8645HS 4.3 - 5 GHz 6 / 12  16 MB L3 AMD Ryzen 5 8640HS 3.5 - 4.9 GHz 6 / 12  16 MB L3
Clock Rate	3300 - 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)	28 Watt
Manufacturing Technology	4 nm
Die Size	178 mm2
Max. Temperature	100 °C
Socket	FP7/FP7r2/FP8
Features	DDR5-5600/LPDDR5x-7500 RAM, PCIe 4, Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
GPU	AMD Radeon 780M ( - 2700 MHz)
64 Bit	64 Bit support
Architecture	x86
Announcement Date	12/06/2023
Product Link (external)	www.amd.com

Benchmarks

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Reviews for the AMD Ryzen 7 8840HS processor

Asus Zenbook 14 OLED UM3406HA: AMD Radeon 780M, 14.00", 1.2 kg
  External Review » Asus Zenbook 14 OLED UM3406HA