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Zen2 is moving to a somewhat deceptive advertising model for clocks. AMD is advertising the absolute highest that any core on the die can hit under extremely l
by paulmd 7y ago
Zen2 is moving to a somewhat deceptive advertising model for clocks.
AMD is advertising the absolute highest that any core on the die can hit under extremely light load for an absolute instant. Sustained single-core clocks will be 100-200 MHz less and sustained all-core will be significantly less. Most cores on a chip are not capable of sustaining the advertised clockrate even under severe voltage and even for instant loads, only the "preferred core" on a chip. There is a significant "binning effect" not just between chips, but between individual cores on a chip.
Intel and previous generations of AMD cores used to advertise the sustained single-core rate, which could be achieved on any of the cores. This is a changeup to how the clockrate has been advertised.
original: https://www.youtube.com/watch?v=DgSoZAdk_E8 https://www.youtube.com/watch?v=DgSoZAdk_E8
followup after a patch: https://www.youtube.com/watch?v=3LesYlfhv3o https://www.youtube.com/watch?v=3LesYlfhv3o
As such the clockrates may be significantly different from what you're intuiting based on the advertising.
- yummypaint 7y agoIndeed, it makes it difficult to know what you're actually buying when considering something like a 3600 vs 3600x
- loeg 7y agoI don't actually recall any Zen2 clock advertising in particular. My comment was purely in response to your earlier statement: > Another part is the power consumption and resulting higher clocks. The 2990WX was basically power limited, the new chips are on 7nm which will drastically reduce their power consumption and allow higher clocks inside the same power envelope.