Key Features Summary
Generative AI (latest LLM/SLM/LMM support) with improved performance vs earlier chips.
“All Big Core” CPU design with enhanced cache sizes for better sustained performance.
Upgrades aimed at creators: better video recording, broadcast, fast editing, stabilization, etc.
More efficient graphics with better bandwidth usage, gaming-optimizations, etc.
Detailed Specifications
Component Specification
CPU
Octa-core (8 cores), All Big Core architecture.
• 1× Arm Cortex-A725 with 1 MB L2
• 3× A725, each with 512 KB L2
• 4× A725, each with 256 KB L2
• Shared caches: 6 MB L3, plus ~5 MB System Level Cache (SLC)
Memory & Storage Memory type:
• LPDDR5X, up to ~8533 Mbps data rate.
• Storage: UFS 4 + MCQ (Multi-Channel Queue) for faster I/O.
Graphics / GPU GPU:
• Arm Mali-G720 MC7.
• Improvements: less memory bandwidth needed (≈30% less) while increasing peak performance; plus MediaTek Frame Rate Converter (MFRC) to save power in graphics workloads.
AI / NPU MediaTek NPU 880.
• Supports generative AI, agentic AI engine (DAE), and has enhancements over prior generation: faster integer/floating-point ops, better efficiency, etc.
• Specific claims: +20% faster integer/floating point operations; +18% higher power efficiency; +33% faster text generation (example: Baichuan 4B); +21% faster on Stable Diffusion v1.5.
Camera / Imaging Max sensor support:
• Up to 320 MP. Also capability for 3× 32MP at 30 fps.
• Enhanced video/photo features:
• Dual EIS engine to improve video stabilization (4K60 HDR) with 2× EIS compute capacity.
• Live Broadcast Booster for better face detection, selective AI enhancements when streaming.
• QPD remosaic in-sensor zoom; HDR video through the zoom range; simultaneous preview & capture with no lag.
Video Max video capture:
• 4K @ 60 fps. <br> Encoding support: H.264 (AVC), H.265 (HEVC).
• Playback support: also VP9, AV1.
• Display Supports up to WQHD+ resolution at up to 144 Hz refresh rate. <br>
• Dual-screen support.
Connectivity 5G-Advanced modem
• Sub-6 GHz (FR1), supports 5G-CA (carrier aggregation), 4G-CA, both FDD/TDD.
• Downlink: up to 3CC-CA, up to ~5.17 Gbps.
• Uplink: 2CC UL with 256QAM; FDD UL TxD.
• Dual SIM Dual Active, SA & NSA modes.
• GNSS Multi-GNSS support: GPS (L1CA, L5, L1C), • BeiDou (B1I, B1C, B2a), Glonass, Galileo (E1,E5a), QZSS, NavIC L5.
WiFi / Bluetooth
• WiFi 6E (802.11 a/b/g/n/ac/ax). 2×2 antenna configuration. <br>
• Bluetooth 5.4.
Power / Efficiency Enhancements
• UltraSave 3.0+ for improved 5G power efficiency.
• Larger caches (L2/L3/SLC) to reduce memory traffic.
• Improvements in AI and CPU power‐vs-performance ratio.
• GPU improvements also target lower power draws.
What’s New / Improvements Over Earlier Generations
The 8450 builds on generative AI features more heavily faster text/image model inferencing etc.
More aggressive cache sizing: more L2, more L3, more SLC. Improves latency, reduces frequent memory fetches.
Innovations in video capture and live broadcasting: dual EIS, Live Broadcast Booster etc. Useful for streamers and content creators.
Better graphics / bandwidth efficiency via GPU and Frame Rate Converter. Enhances gaming performance while reducing power.
Trade-Offs / What to Watch For
While “All Big Core” gives strong performance, sustained loads (gaming, 4K video recording, long streaming) will stress thermal design—phones using this chip need good cooling.
Battery capacity and optimization become more critical, especially in 5G + high refresh rate + camera usage + AI features.
The benefits of many of the advanced AI & broadcast features depend on software optimization and support; not all apps will immediately take full advantage.
Price of devices using this chip may be higher, given the premium features.
Real-World Implications / Use Cases
If you’re a content creator (streaming, video recording, editing) you’ll see real benefit: faster encoding/transcoding, better stabilization, better zoomed video/HDR everywhere camera pipelines.
Gamers benefit from smoother frame rates, less stuttering, better thermal sustainability, especially with the improvements in GPU efficiency & bandwidth.
For general users, smoother multitasking, faster UI responsiveness, better AI-powered features (camera, voice, etc.).
Live broadcasters or social media users who do editing and upload often will appreciate the Live Broadcast Booster & faster text/image generation features.
Conclusion
The MediaTek Dimensity 8450 is a strong evolution aimed at high-end mobile devices, especially in the creator / influencer / gamer segment. It enhances imaging, AI, video, and graphics, while pushing power efficiency via better cache architecture, modem improvements, and specialized features like broadcast enhancements.
