
AMD Radeon 840M

Radeon 840M是一款相当强大的 RDNA 3.5 架构 iGPU,于 2025 年初在 Krakan Point APU 中首次亮相,是 Radeon 740M.它的引擎盖下仅有一些不同之处,如更快的缓存;其 4CUs/WGPs (256 个统一着色器)运行频率高达 2,900 MHz。
它支持 DX12 Ultimate、光线追踪、AI 图像生成和其他现代功能,还支持许多流行的视频编解码器,首先包括 AVC、HEVC、VP9 和 AV1。与英特尔 Lunar Lake 芯片不同的是,最新加入的 VVC 编解码器不支持硬件。支持 Miracast 和 FreeSync。iGPU 可同时驱动多达 4 台显示器,分辨率高达 SUHD 4320p60。
预计 AMD 将在 2027 年之前完全支持基于 RDNA 3.5 的 GPU。
性能
其游戏性能足以在低图形设置下玩 2024 款游戏。从规格上看,840M 应该比一般的 Radeon 740M.
功耗
Krakan Point 芯片采用单芯片设计,这意味着 iGPU 与 CPU 内核采用相同的台积电 N4P 工艺制造,因此能效高于平均水平(截至 2024 年底)。
AMD Radeon 800M Series
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| Codename | Krackan Point | |||||||||||||||
| Architecture | RDNA 3+ | |||||||||||||||
| iGPU | Integrated Graphics | |||||||||||||||
| Pipelines | 256 - unified | |||||||||||||||
| Raytracing Cores | 4 | |||||||||||||||
| Core Speed | 2900 (Boost) MHz | |||||||||||||||
| Memory Speed | 7500 MHz | |||||||||||||||
| Shared Memory | yes | |||||||||||||||
| API | DirectX 12_2 | |||||||||||||||
| Man. Technology | 4 nm | |||||||||||||||
| PCIe | 4 | |||||||||||||||
| Displays | 4 Displays (max.), HDMI 2.1, DisplayPort 2.1 | |||||||||||||||
| Features | FreeSync, Miracast, SUHD 4320p60 resolution support, AVC/HEVC/VP9/AV1 encoding and decoding | |||||||||||||||
| Notebook Size | medium sized | |||||||||||||||
| Date of Announcement | 02.06.2024 | |||||||||||||||
| Predecessor | Radeon 740M | |||||||||||||||
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Benchmarks
3DM Vant. Perf. total +
Cinebench R15 OpenGL 64 Bit +
* Smaller numbers mean a higher performance
Game Benchmarks
The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.

ARC Raiders
2025
The Outer Worlds 2
2025
Borderlands 4
2025
F1 25
2025
Doom: The Dark Ages
2025
Civilization 7
2025
Monster Hunter Wilds
2025
Stalker 2
2024
Until Dawn
2024
Space Marine 2
2024
Star Wars Outlaws
2024
F1 24
2024
Ghost of Tsushima
2024
Dragon's Dogma 2
2024
Helldivers 2
2024
Counter-Strike 2
2023
Cyberpunk 2077
2023
Baldur's Gate 3
2023
X-Plane 11.11
2018
Dota 2 Reborn
2015
GTA V
2015For more games that might be playable and a list of all games and graphics cards visit our Gaming List
Notebook reviews with AMD Radeon 840M graphics card

Asus Zenbook 14 UM3406GA: AMD Ryzen AI 5 430, 14.00", 1.2 kg
External Review » Asus Zenbook 14 UM3406GA
Asus Vivobook S14 M3407GA: AMD Ryzen AI 7 445, 14.00", 1.4 kg
External Review » 华硕 Vivobook S14 M3407GA
Lenovo Yoga Slim 7a 14AGP11: AMD Ryzen AI 5 430, 14.00", 1.2 kg
External Review » Lenovo Yoga Slim 7a 14AGP11
Lenovo IdeaPad Pro 5 14AKP10: AMD Ryzen AI 5 340, 14.00", 0 kg
External Review » Lenovo IdeaPad Pro 5 14AKP10
HP OmniBook X Flip NGAI 14-fk0000ng: AMD Ryzen AI 5 340, 14.00", 1.4 kg
External Review » HP OmniBook X Flip NGAI 14-fk0000ng
Dell 14 Plus DB14255: AMD Ryzen AI 5 340, 14.00", 1.5 kg
External Review » Dell 14 Plus DB14255
Acer Swift Air 16 SFA16-61M: AMD Ryzen AI 5 340, 16.00", 1.1 kg
External Review » Acer Swift Air 16 SFA16-61M
HP OmniBook 3 NGAI 15-fn0000: AMD Ryzen AI 5 340, 15.60", 1.7 kg
External Review » HP OmniBook 3 NGAI 15-fn0000
HP OmniBook 5 NGAI 16-ag1000: AMD Ryzen AI 5 340, 16.00", 1.8 kg
External Review » HP OmniBook 5 NGAI 16-ag1000
Dell 14 Plus 2-in-1, Ryzen AI 5 340: AMD Ryzen AI 5 340, 14.00", 1.6 kg
External Review » Dell 14 Plus 2-in-1, Ryzen AI 5 340










