4 ms·

No they don't. They have the _option_ of an N second delay which AMD allows OEMs to set themselves for their own determined blend of say pure raw performance (n

by tsujp 6y ago

No they don't. They have the _option_ of an N second delay which AMD allows OEMs to set themselves for their own determined blend of say pure raw performance (no delay) or a more reserved ramp up to save battery. Here this is debunked: https://semiaccurate.com/2020/11/23/intel-looks-at-laptop-power-usage/ https://semiaccurate.com/2020/11/23/intel-looks-at-laptop-po... Another debunk: https://www.extremetech.com/extreme/317657-intel-is-spreading-fud-about-supposedly-huge-ryzen-4000-performance-drops-on-battery https://www.extremetech.com/extreme/317657-intel-is-spreadin... AMDs own slide on performance tuning OEMs have access to: https://www.extremetech.com/wp-content/uploads/2020/11/AC-vs-DC-Power.jpg https://www.extremetech.com/wp-content/uploads/2020/11/AC-vs...

antpls 6y ago
I thought the "race-to-sleep" method was the most energy efficient one? Why adding such delay? https://en.wikichip.org/wiki/race-to-sleep https://en.wikichip.org/wiki/race-to-sleep
- mlyle 6y ago
  With really aggressive boost, the pendulum has swung the other way: the amount of performance per watt when heavily boosted nosedives as voltage to the part is cranked up and leakage increases.
srazzaque 6y ago
Great links. Whilst I'll admit a confirmation bias on my side, benchmarks aside, I'm pretty happy with my AMD X13. This is after literally 15 years of only purchasing Intel laptops - aside from thunderbolt, I dont feel like I've lost out on anything. An interesting little excerpt from the first link: > this tuning Intel does is in software and for Windows only. If you change OSes or even if the OS is upgraded, chances are this tuning will vanish.
- tsujp 6y ago
  My first ever PC, that was mine mind you, was some cheap AMD Athlon back in 2008, after that when the i7 came out I was on that train until very recently when I picked up a 3700X instead -- so essentially 11 years of Intel for me. I'm not really attached to either brand just what's currently the best, can run Linux, and whose owning company/companies are behaving themselves (stability/support/development).

by tsujp 6y ago

antpls 6y ago

I thought the "race-to-sleep" method was the most energy efficient one? Why adding such delay? https://en.wikichip.org/wiki/race-to-sleep https://en.wikichip.org/wiki/race-to-sleep

mlyle 6y ago
With really aggressive boost, the pendulum has swung the other way: the amount of performance per watt when heavily boosted nosedives as voltage to the part is cranked up and leakage increases.

srazzaque 6y ago

Great links. Whilst I'll admit a confirmation bias on my side, benchmarks aside, I'm pretty happy with my AMD X13. This is after literally 15 years of only purchasing Intel laptops - aside from thunderbolt, I dont feel like I've lost out on anything. An interesting little excerpt from the first link: > this tuning Intel does is in software and for Windows only. If you change OSes or even if the OS is upgraded, chances are this tuning will vanish.

tsujp 6y ago
My first ever PC, that was mine mind you, was some cheap AMD Athlon back in 2008, after that when the i7 came out I was on that train until very recently when I picked up a 3700X instead -- so essentially 11 years of Intel for me. I'm not really attached to either brand just what's currently the best, can run Linux, and whose owning company/companies are behaving themselves (stability/support/development).