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iPad Pro M4芯片详细分析

M4芯片采用台积电第二代3纳米工艺制程,大核频率最高4.5GHz,小核2.88GHz,频率达到了intel Ultra5水平。GPU频率1.47Ghz,相比M3小幅提升。

CPU方面,大核解码单元从上代9宽提升至10宽,同时引入SME单元。SPEC 2017峰值性能测试大核整数性能较上代提升18.9%,浮点提升25.4%,为M系列提升最大一次,同时峰值功耗增加约60%。相比i9 14900K,M4大核4.5GHz下比intel 6GHz下高出23%!日常状态,IPC(分/GHz)大核较上代提升7.3%,小核8.6%。GeekBench 6测试单核4000分比至今未上市的高通X Elite高出1000分。GeekBench5结果单核大幅超越Ultra 9,多核接近Ultra9,超越R9-8954HS。

GPU方面则是常规成绩,较上代提升约10%,同时功耗提升约10%,侧面说明台积电新工艺并未带来能效提升。

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iPad Pro M4芯片详细分析

M4芯片采用台积电第二代3纳米工艺制程,大核频率最高4.5GHz,小核2.88GHz,频率达到了intel Ultra5水平。GPU频率1.47Ghz,相比M3小幅提升。

CPU方面,大核解码单元从上代9宽提升至10宽,同时引入SME单元。SPEC 2017峰值性能测试大核整数性能较上代提升18.9%,浮点提升25.4%,为M系列提升最大一次,同时峰值功耗增加约60%。相比i9 14900K,M4大核4.5GHz下比intel 6GHz下高出23%!日常状态,IPC(分/GHz)大核较上代提升7.3%,小核8.6%。GeekBench 6测试单核4000分比至今未上市的高通X Elite高出1000分。GeekBench5结果单核大幅超越Ultra 9,多核接近Ultra9,超越R9-8954HS。

GPU方面则是常规成绩,较上代提升约10%,同时功耗提升约10%,侧面说明台积电新工艺并未带来能效提升。

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关注频道 @ZaiHuaPd
频道投稿 @ZaiHuabot
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Should You Buy Bitcoin?

In general, many financial experts support their clients’ desire to buy cryptocurrency, but they don’t recommend it unless clients express interest. “The biggest concern for us is if someone wants to invest in crypto and the investment they choose doesn’t do well, and then all of a sudden they can’t send their kids to college,” says Ian Harvey, a certified financial planner (CFP) in New York City. “Then it wasn’t worth the risk.” The speculative nature of cryptocurrency leads some planners to recommend it for clients’ “side” investments. “Some call it a Vegas account,” says Scott Hammel, a CFP in Dallas. “Let’s keep this away from our real long-term perspective, make sure it doesn’t become too large a portion of your portfolio.” In a very real sense, Bitcoin is like a single stock, and advisors wouldn’t recommend putting a sizable part of your portfolio into any one company. At most, planners suggest putting no more than 1% to 10% into Bitcoin if you’re passionate about it. “If it was one stock, you would never allocate any significant portion of your portfolio to it,” Hammel says.

Tata Power whose core business is to generate, transmit and distribute electricity has made no money to investors in the last one decade. That is a big blunder considering it is one of the largest power generation companies in the country. One of the reasons is the company's huge debt levels which stood at ₹43,559 crore at the end of March 2021 compared to the company’s market capitalisation of ₹44,447 crore.

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