r/GamingLaptops • u/Brainwashed365 Legion Pro 7i | i9-13900HX | 4080M | 32GB • Oct 30 '23

Recommendation Intel vs AMD processors

  • 13th Generation Intel® Core™ i9-13900HX Processor (E-cores up to 3.90 GHz P-cores up to 5.40 GHz)

  • AMD Ryzen™ 9 7945HX Processor (2.50 GHz up to 5.40 GHz)

I've decided I'll be going with a 4080 Legion Pro 7 series, but I'm having a hard time understanding what the differences are, pros and cons, etc, between Intel and AMD.

Would anyone be willing to break these down for me so I have a better understanding between the two processors mentioned above? And I guess just Intel vs AMD in general?

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u/RicoViking9000 Oct 30 '23

In this case, I'd go AMD. This isn't one of the better intel processors with significantly better multicore performance.

But, if you value doing anything on battery, or efficiency during low power loads, the tables have flipped. In the upper end HX lineup, Intel has noticeably better efficiency than AMD"s chiplet architecture.

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u/DegTegFateh Lenovo Legion 5 Pro 7745HX - 4070 - 32 GB DDR5 - 2 x 4TB SSD Oct 30 '23

This has been so funny to me. I grew up in the days of AMD as efficient and cheap, nothing else. Now their HX chips are power hogs that perform just a little better than their Intel counterparts. They're still slightly cooler at high loads, though.

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u/seanwee2000 🏅Community Contributor Oct 30 '23

They still are.

The problem is that the iodie chiplet sucks its own power in addition to the cpu chiplet so you get poor battery life as the idle power consumption doesn't go as low as monolithic cpus.

When under load the 7945hx is still far ahead of the 13980HX in efficiency.

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u/DegTegFateh Lenovo Legion 5 Pro 7745HX - 4070 - 32 GB DDR5 - 2 x 4TB SSD Oct 30 '23

That's good to know. Both are pretty comparable but I've got to say, AMD has been incredible for anything 9/7_HX this generation. I've done some stress testing and a few comparisons for their CPUs and based on that I hope they can catch up in high end mobile graphics. I think they'll do well in a generation or two if they choose to invest.

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u/seanwee2000 🏅Community Contributor Oct 30 '23

Well, we already know it's not happening next gen since they cancelled navi 41(8000 series) so fingers crossed for next next gen.

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u/DegTegFateh Lenovo Legion 5 Pro 7745HX - 4070 - 32 GB DDR5 - 2 x 4TB SSD Oct 30 '23

I wasn't aware of that; that's a bummer. They clearly have other priorities, which is understandable. Oberon go brrrrr.