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haxxiy on 17 September 2020
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JEMC said:
Captain_Yuri said:

The one interesting thing about Ampere is:

3080 @ Computerbase.de: A 50W lower TDP would've meant only 4% lower performance and 25% better efficiency than 2080Ti, not 10%.

https://www.reddit.com/r/nvidia/comments/iuht5l/3080_computerbasede_a_50w_lower_tdp_wouldve_meant/

So if that's true, that means Samsung's 8N is pretty efficient at a certain power target (similar to every other node) but Nvidia decided to push it to the brink where efficiency goes out the widow.

That's very interesting. I wonder why they've decided o push it so much and screw up the efficiency numbers for so little gain.

To be fair, you can do the same thing to almost every CPU and GPU out there, specially in the case of the ones that are being loosely binned or have conservative power targets. Undervolting Ryzen CPUs yields particularly crazy results:

https://www.overclock.net/threads/why-you-should-undervolt-your-ryzen-3000-part-ii.1739796/

An example for Nvidia GPUs:

https://www.reddit.com/r/nvidia/comments/9idtco/rtx_2080_downvolt_the_easy_way/

30 - 40 W less power or better for same perf or small overclocks.

Last edited by haxxiy - on 17 September 2020