Ryzen 7000 Said to Have a DDR5-6000 Memory "Sweet Spot"

[Makaveli]

regressing to 4 cores per ccx scares me, if that part is correct.

https://twitter.com/i/web/status/1557299218976370689

 

[The_Enigma]

This again tells us how garbage is the I/O die for Zen to Zen 3 made by GF...
Glad to see this improvement. Ryzen 7000 is born at a more proper time, with 12th gen Core being the pioneer to open up DDR5 market, even though DDR5 is still relatively expensive.

I wouldn't call it garbage. AMD simply didn't design the SerDes links to operate any higher on the old data fabric, there was no need. Now there is a need to with the higher memory clock speeds. Most likely on the new IO die, AMD simply plopped on an industry standard 25.78GHz SerDes that has been around for quite a few years now and has been coming down in price the past couple of years, which would be an upgrade from their previous IO die design that struggled to reach 16GHz on the IFIS. Which, once overhead is taken into consideration, a 25.78GHz SerDes would top out with a touch of overclocking right around a 3GHz FCLK speed. If there was no overhead, the FCLK would technically top out at 3.125GHz/DDR5-6250 on a 25.78GHz fabric link.
Either that, or AMD redesigned the Infinity Fabric to a wider bus, which I highly doubt is the case as I have not heard of a 4th gen Infinity Fabric design nor have I heard the 3rd gen in the last Epyc's moved up from 16-bit IFIS transfers.

 

[Mussels]

Sweet spot for the processor, but not sweet spot for buyers. DDR5 6000 can be quite pricey at this point.

Doesnt matter - the CPU's will be viable for another 5 years if AM4 is anything to go by, just means you have upgrade potential in the future

https://twitter.com/i/web/status/1557299218976370689

That says Zen 4 is 8 cores per CCX, i believe theyr'e saying theres four CCX's at most - 32 core CPU?

 

[Punkenjoy]

Doesnt matter - the CPU's will be viable for another 5 years if AM4 is anything to go by, just means you have upgrade potential in the future


That says Zen 4 is 8 cores per CCX, i believe theyr'e saying theres four CCX's at most - 32 core CPU?

It look like they could support 2 16 core CCD with 2x8 Cores CCX. This could be the rumored Zen4c that had less cache but 16 cores per chip. Or it could be future proofing for Zen 5 where it would have 16 core CCD. This could be a a 8 Zen 5 cores with 8 smaller cores. I heard nothing about that, this is pure assumption.


Anyway, many possibility. We need to remember that Zen 2 and Zen 3 had the same I/O die so it's not inconceivable to assume that Zen 4 and Zen 5 could us this very same I/O Dies too.

 

[thegnome]

I'm quite glad they managed to finally upgrade to some proper IF clocks and much more controls it seems. Hopefully they fixed the V-Cache voltage limits (seperate voltage?) as well, that would mean much more potential for Zen 4.

 

[Chrispy_]

That has been the case since....2000?

You're confusing it for FSB I think.
FCLK = Infinity Fabric, which didn't exist prior to Ryzen in 2017.

 

[Makaveli]

I'm quite glad they managed to finally upgrade to some proper IF clocks and much more controls it seems. Hopefully they fixed the V-Cache voltage limits (seperate voltage?) as well, that would mean much more potential for Zen 4.

A Zen 4 X3D part is already exciting if this is fixed also will go from a yes to I want this right now buy.

 

[Minus Infinity]

A Zen 4 X3D part is already exciting if this is fixed also will go from a yes to I want this right now buy.

I am excited by the prospect of both a 7800X3D and 7900X3D. Actually I'm excited by the whole Zen 4 vs Raptor Lake show we are about to get. I do hope AMD answer Intel's lower end 13400 and below cpu's too. Plenty of people want 4c/8t options

There are rumours of possible AM5 MB's with DDR4 support, but we'll see. If lower latency DDR5 5200 is good price why even bother with DDR4.

 

[Taraquin]

I am excited by the prospect of both a 7800X3D and 7900X3D. Actually I'm excited by the whole Zen 4 vs Raptor Lake show we are about to get. I do hope AMD answer Intel's lower end 13400 and below cpu's too. Plenty of people want 4c/8t options

There are rumours of possible AM5 MB's with DDR4 support, but we'll see. If lower latency DDR5 5200 is good price why even bother with DDR4.

Intel will probably lock SA voltage once more meaning if you are unlucky best ram speed you can run is 6000 at 2:1, if lucky you may do 7000+.

 

[ir_cow]

Intel will probably lock SA voltage once more meaning if you are unlucky best ram speed you can run is 6000 at 2:1, if lucky you may do 7000+.

whaaa? I can't see this happening. Also if Intel did set it to 1.35v max, that would be okay. I can run boot 7000 MT/s with 1.25v. I think your putting to much weight into the SA. Other voltages like VDD2 and TX are equally important.

 

[Taraquin]

whaaa? I can't see this happening. Also if Intel did set it to 1.35v max, that would be okay. I can run boot 7000 MT/s with 1.25v. I think your putting to much weight into the SA. Other voltages like VDD2 and TX are equally important.

All locked Alder lakes has locked SA voltage to 0.89-0.98v depending on luck. All K-sku's have unlocked. On DDR4 some can't even run ram at 3000 xmp, if lucky and using AIO you may do 3700-3800. I can do 3600 G1. DDR5 is practically doabled since it run 2:1 mode.

 

[Mussels]

whaaa? I can't see this happening. Also if Intel did set it to 1.35v max, that would be okay. I can run boot 7000 MT/s with 1.25v. I think your putting to much weight into the SA. Other voltages like VDD2 and TX are equally important.

I just had to help my cousin today who had bought a 'new' 10th gen intel, and the SA voltage is locked down unless they use an 11th gen K series cpu.
Of course, their 32GB of 3200Mhz ram is unstable.

I also have low hopes for intels Non K/Z stuff, they LOVE artificial locks

 

[BeerWEallLike Beer]

I have the sweetspot of Gaming Performance and Price, its called i3 10105F + Board = 124€ and will nothing limit on cpu side till a 3060TI
AMD become to a garbage High Price shit, for the price of an 10105F and Board ill get by AMD an Ryzen 3 3100.

AMD can shove theyr CPU and APU up theyr asses, such of a shit hole company it is now.
My last AMD was a 7860K.

 

[ir_cow]

I didn't know intel locked the none K/F. I guess they really want people to stick to Intel official specs. What 10th gen like 2933 , 11th 3200 and 12th 4800. 13th will be presumably 5600.

I can see this being a big problem for overclockers. I guess you pay for a locked cpu, you get a locked down cpu

Edit: now I want to buy a 12th i3 and see what I can do with the locked voltage.

 

[Why_Me]

I didn't know intel locked the none K/F. I guess they really want people to stick to Intel official specs. What 10th gen like 2933 , 11th 3200 and 12th 4800. 13th will be presumably 5600.

I can see this being a big problem for overclockers. I guess you pay for a locked cpu, you get a locked down cpu

Edit: now I want to buy a 12th i3 and see what I can do with the locked voltage.

Why would someone who overclocks purchase a locked cpu?

 

[Mussels]

Why would someone who overclocks purchase a locked cpu?

By intels standards, that includes ram above JEDEC speeds and even altering power limits.

We've been able to limited overclock intels for MANY many years, and then it's gotten strangled... my 2nd through 4th gen locked chips can all max out the RAM speeds (1866/2400 depending on generation) as well as overclock all core load to 200Mhz under turbo.

And then... we get 6th gen boards, locked to 2133, with zero voltage control, no useful power limits, etc.

Overclocking in this context he more meant tweakers - overclocker, underclocker, undervolter, etc.


And its why i've stuck with AMD through Zen despite the early teething troubles, at least I could tweak things... my poor i7 6700 is slower than my i5 2400S, since it cant feed the GPU with the slowass ram

 

[marios15]

You're confusing it for FSB I think.
FCLK = Infinity Fabric, which didn't exist prior to Ryzen in 2017.

I'm not confusing it...i'm directly comparing the FSB:RAM ratios, that became CPU-NB:RAM ratios, and now IF:RAM ratios.
It has always been the case that running 1:1, or divisible by 2 was the best.

 

[Taraquin]

Why would someone who overclocks purchase a locked cpu?

Intel said that ram OC was available on B660 boards with locked CPUs, but they did not mention SA voltage os locked so max ram OC in gear 1 using DDR4 is 3000-3600, vs 4000-4300 on unlocked CPUs. On 6-11th gen full ram oc was available on locked CPUs with Z chipset and on 10-11th gen on B/H chipset. You can OC a 10400F ram to 4200+ or 11400F to 3700+ just like K CPUs on B560 MBs. On 12th gen you get max 3200 on H610, 3000-3600 on locked CPUs on B/H/Z and 4000-4300 with unlocked CPUs.

 

[mechtech]

I just had to help my cousin today who had bought a 'new' 10th gen intel, and the SA voltage is locked down unless they use an 11th gen K series cpu.
Of course, their 32GB of 3200Mhz ram is unstable.

I also have low hopes for intels Non K/Z stuff, they LOVE artificial locks

3200MHz............that jedec at 1.2V, or XMP at 1.35V?

 

[Taraquin]

I have the sweetspot of Gaming Performance and Price, its called i3 10105F + Board = 124€ and will nothing limit on cpu side till a 3060TI
AMD become to a garbage High Price shit, for the price of an 10105F and Board ill get by AMD an Ryzen 3 3100.

AMD can shove theyr CPU and APU up theyr asses, such of a shit hole company it is now.
My last AMD was a 7860K.

Ryzen 5600 is not that much more expensive than 10105F, but offers far better perf. Where I live 10105F cost 100usd, B560 100usd, meanwhile 5600 cost 180usd, B450 70usd. For 50usd more you get over 30% higher perf when CPU limited (check scores for the similar 10100). 10105F will limit a 3060ti in many games at 1080p even if you oc and tune ram hatd pn 10105F. If you use 4k and don't touch dlss 10105F and 3060ti will do fine.

https://tpucdn.com/review/amd-ryzen-5-5600/images/relative-performance-games-1280-720.png

 

[Mussels]

3200MHz............that jedec at 1.2V, or XMP at 1.35V?

1.35v. which is likely part of the issue. But that same ram is unstable even at its generic JEDEC clocks at 1.2V

Board supports all these things seperately, just wont enable that support without a K chip