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AMD to unveil Zen 4 CPUs at CES 2022

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They took out the fake plastic wafer! NOOOOOO0000000ooooooooo......... In all honesty that is a shame, i did like it, i think most of us appreciate cool box art.

This, is really nice. that will look good on my shelf.

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As an owner of the 12900k, the box sucks. I mean - its nice to look at and all, but its huge - way bigger than the pictures can actually show, for no reason whatsoever. Waste of resources and transfering costs. Same goes with some motherboard boxes (asus apex...) the box is disgunstily huge
 
According to the article which contains the box art, that same information slide alleges he 7700X MSRP will be the same as the 5700X MSRP, so $299. That will probably translate to about £329-349 over here.

Which is a shame because the 5700X right now is about £230.
I doubt the 7600X will be as pricey as the 5600X was on release unless it's performance is way above what AMD have hinted at or AMD is also plannin to release a cheaper 7600 non X at the same time as this is unlikely to beat a 12600k or even that £230 5700X in MT workloads.
 
Zen 3 has a listed RAM speed of 3200MT/s, that's 1600Mhz 1:1 IF clock.

I was reading this guide.

If you buy 3200 XMP or lower, you may have dies that do 3333 max.

Which i did. Turns out that's sort of true, anything over 3400MT/s Not 3333, i had to manually adjust the IF clock to keep 1:1, 1700Mhz+, normally on Zen 3 you wouldn't have to do this until 1800Mhz+

Good dies:
Samsung B (4000+ and good timings)
Hynix DJR (4800+ but high RP and mediocre RCDRD/RC/RFC)
Hynix CJR (3800+ but high RP and mediocre RCDRD/RC/RFC)
Micron rev E and B(16gb sticks, not 8) (4800+ but high RCDRD/RC/RFC)

Mine are Micron rev B 16GB Sticks, because i bought a 32GB kit i was lucky, Micron B 8GB are listed as "bad".
RCDRD/RC/RFC on them is high.

I have them running 3800MT/s with 1:1 IF, IE manually set to 1900Mhz.
Absolutely rock solid, and Latency isn't bad, its not good but also not bad, £90 32GB Kit.

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So i think Zen 4 will be similar.
It will have an officially supported speed, perhaps 4800MT/s, that's a 2400Mhz IF 1:1, and perhaps "up to" 3000Mhz 1:1 IF XMP without manually having to set the IF clock to keep the 1:1 ratio.
The reason i say "Up to" is because while we think the IF on Zen 3 will clock to 1800Mhz without making manual adjustments, IE: by just setting the XMP, as i found out that's not actually true, it seems to depend on the RAM.
3000Mhz IF clock may also not be the limit, just as with Zen 3 the "up to" 1800Mhz IF clock with XMP i have mine manually set to 1900Mhz and have seen them as high as 2200Mhz, there is probably ones higher that that out there too.
Anything higher than the XMP IF clocks limits set by AMD is probably a silicon lottery thing.

So:
Perhaps 4800MT/s official support
Up to 6000MT/s XMP OC IF 1:1
6000MT/s + with manual IF tuning Lottery.
 
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