Unverified50% confidenceBenchmarkExact time
RTX 4090显存带宽约为1TB/s，而统一内存带宽通常在100-800GB/s区间，苹果M3 Ultra可达800GB/s，普通迷你PC APU方案通常在100-200GB/s
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/11/2026
First Seen
Valid until: 10/9/2026
Sources
统一内存架构揭秘：迷你PC如何运行70B大模型
hackernewshackernews7/10/2026
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