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MagyarAMD Ryzen 9 8945H
The Ryzen 9 8945H is a rebadged Ryzen 9 7940HS with a higher clocked Ryzen AI engine. To be more specific, the 8945H is a powerful Hawk Point family laptop chip that has eight Zen 4 cores running at 4.0 GHz to 5.2 GHz. All of its cores are SMT-enabled for a total of 16 processing threads.
Compared to the similar 8945HS, the H seems to be a local variant for China and offers the same specifications.
This powerful Ryzen 9 series processor comes with the 2nd generation Ryzen AI technology. The Radeon 780M serves as the integrated graphics adapter.
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 chips are promised to deliver an up to 40% increase in generative AI performance over 7040 series APUs making apps like DaVinci Resolve and Adobe Photoshop even more powerful.
Unlike Zen 3, Zen 4 features AVX512 support and, thanks to a plethora of other improvements including larger caches/registers/buffers across the board, is slated to bring a double-digit IPC improvement over the former.
Elsewhere, the 8945H has 16 MB of L3 cache and support for super-fast RAM (up to LPDDR5x-7500 or DDR5-5600; no ECC support). The processor is compatible with USB 4 and thus with Thunderbolt; PCIe support is limited to the 4.0 spec for a throughput of 1.97 GB/s per lane. 20 lanes are available.
OS support is limited to 64-bit editions of Windows 11 and Windows 10 and of course to Linux. Note that the chip isn't overclockable and neither is it user-replaceable as it gets soldered down for good (FP7, FP7r2, FP8 socket interfaces).
Performance
The 8945H is an R9 7940HS in disguise, so it's realistic to expect the chip to be just slightly faster than the Core i9-12900HK and also the Ryzen 7 7840HS, 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 system is.
Graphics
The Radeon 780M has 12 CUs (768 shaders) running at up to 2,800 MHz. This is a very fast iGPU, as of late 2023. It will let you use up to 4 monitors with resolutions as high as SUHD 4320p, and it is also capable of HW-encoding and HW-decoding the most widely used video codecs including AVC, HEVC and AV1. More importantly, it is fast enough for proper 1080p gaming as long as one is fine with low to medium detail settings.
Your mileage may vary depending on how high the CPU power limits are, how competent the cooling solution of the system is, how fast the RAM of the system is (there is no dedicated VRAM here).
Power consumption
This Ryzen 9 series chip has a long-term power limit (default TDP) of 35 W to 54 W, giving laptop makers a choice between longer battery life and higher performance. Either way, an active cooling solution is a must for a system powered by this chip.
The 8945H 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)
| |||||||||||||||||||||||||||||
| Clock Rate | 4000 - 5200 MHz | ||||||||||||||||||||||||||||
| Level 1 Cache | 512 KB | ||||||||||||||||||||||||||||
| Level 2 Cache | 8 MB | ||||||||||||||||||||||||||||
| Level 3 Cache | 16 MB | ||||||||||||||||||||||||||||
| Number of Cores / Threads | 8 / 16 8 x 5.2 GHz AMD Zen 4 | ||||||||||||||||||||||||||||
| Power Consumption (TDP = Thermal Design Power) | 45 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, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | ||||||||||||||||||||||||||||
| GPU | AMD Radeon 780M ( - 2800 MHz) | ||||||||||||||||||||||||||||
| 64 Bit | 64 Bit support | ||||||||||||||||||||||||||||
| Architecture | x86 | ||||||||||||||||||||||||||||
| Announcement Date | 12/06/2023 | ||||||||||||||||||||||||||||
| Product Link (external) | www.amd.com | ||||||||||||||||||||||||||||
- Average benchmark values for this graphics card