Quote from: Marvin Gollor on February 03, 2023, 18:00:17I didn't state that (M1 Max) MacBooks feature 8 times faster memory, I just stated that it's connected to a 512 bit controller and therefore has 8 times higher bandwidth on paper than if conncted to 64 bit. In reality the bandwidth isn't always maxed out, also the case with x86 systems.
But still...You have already done your own work by finding this data and know the sources of this information. Could you provide links to this?
Quote from: Marvin Gollor on February 03, 2023, 18:00:17I guess 5200 is fast enough for intel for now, considering the additional costs.
I know for sure that it isn't. But they just can't seem to get better.
Quote from: Marvin Gollor on February 03, 2023, 18:00:17Just because Apple finds a way for its high-end macbooks, doesn't mean AMD/Intel is able to copy Apple in this regard from a business standpoint.
Don't you find your argument illogical and absurd considering the prices of expensive x86 solutions? Why is there no HBM memory? Or a 512 bit controller? I have already given an example of the new 7945HX, which is simply catastrophically short of memory bandwidth, at least 3 times (and this is purely bad based on my empirical experience and data).
Quote from: Marvin Gollor on February 03, 2023, 18:00:17AIDA says 128 bit
Thank you. Q.E.D. AMD has a shameful memory controller in Zen3+, I can't say anything about Zen4, but as I already noted, for some reason, the younger Phoenix "4nm" chip has 256GB of memory available, and the top 7945HX with 28 pci-e 5.0 lines has only 64GB.
Quote from: RobertJasiek on February 03, 2023, 15:41:06Please explain!
In Gear1 mode, the frequency of the memory controller is equal to the frequency of the memory, i.e. 1:1 ratio in Cpu-Z. In Gear2 mode - the memory controller runs at half the memory frequency, the ratio is 1:2.
The main gain is not in memory bandwidth, but in memory latency. It speeds up by about 20-25% in atomic (no longer divisible into separate operations) operations. This has a significant effect in some software.
DDR4 works well in Gear1 up to 3733. But most laptop manufacturers deliberately include Gear2 because Gear1 consumes more. It doesn't matter from the outlet. But slightly increases the processor heat, enough to make the coolers noisier. For these reasons, Gear2 is used most often (except for workstations). On desktops, this is the first thing on which you can overclock the memory, with good stability.
Quote from: RobertJasiek on February 03, 2023, 15:41:06As to HBM, don't you think that it consumes too much power?
Marvin assures that Macbooks use an analogue of HBM with a 512-bit bus. What do you think - is there a strong growth in consumption or not? And is the battery life of the laptop less or not?