G.SKILL DDR5-8000 Extreme Speed Memory Kit Now Available

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#6078139
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I bet that's some expensive memory.
#6078141
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Tad expensive costs more than PS5.
#6078198
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Maddness:

I bet that's some expensive memory.
530 USD as far as I've seen.
#6078209
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cucaulay malkin:

will that even run on am5 ? incredible. that's what I would expect from ddr5 when I finally get it.
AM5 tops out at 6400. Because of the IF. What he did there is very impressive, even for Intel system.
#6078212
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Horus-Anhur:

AM5 tops out at 6400. Because of the IF. What he did there is very impressive, even for Intel system.
Exactly, the limit is not Gskill and their talent but your IMC and Motherboard which were never made for such speeds. DDR5 ? Yeah...maybe late 2023 or 2024 it will be useful in a wider scope. For now, useless in Desktop.
#6078222
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I'd like to see someone test these extreme speed DDR5 kits in games that show a massive benefit for the 5800X3D. I wonder if the performance gains from massive L3 cache translates into gains from very fast system memory or if L3 is a special beast due to how much less latency there is.
#6078233
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Now that`s fast! And expensive...
#6078266
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Just a heads up , * just a handful of motherboards are able to run DDR5-8000Mhz + , you do need a 2x Dimm motherboard with good Bios support , example Asus z690 Apex , Asus z790 Apex , Asus z790i Strix , msi z690 unify X , msi z790i edge , Asrock z690 Aqua OC , Asrock z790 pg-itx b4. Plus good cooling on the memory be it water cooling or high air flow over the memory as it does gets very hot those memory sticks at that massive speed and it uses high voltages to do that , and finally a good imc on the cpu.
#6078310
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I just finally got my 6400MHz stable, I think I'll pass on this one!
#6078447
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nosirrahx:

I'd like to see someone test these extreme speed DDR5 kits in games that show a massive benefit for the 5800X3D. I wonder if the performance gains from massive L3 cache translates into gains from very fast system memory or if L3 is a special beast due to how much less latency there is.
If I am not mistaken from all the Ryzen 5xxx series the 5800x3d was the one less affected by the speed of the memory say for example 3200 vs 3800 kit, in general it seems the bigger l3 cache to a point can medicate the need for faster ram .No ddr5 tests though since no zen 3 can take ddr5 😛
#6078451
https://forums.guru3d.com/data/avatars/m/38/38873.jpg
Pretty impressive 8000.... now which mobo will support it. I hope MSI releases Z790 Unify X with support for them.
#6078471
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Venix:

If I am not mistaken from all the Ryzen 5xxx series the 5800x3d was the one less affected by the speed of the memory say for example 3200 vs 3800 kit, in general it seems the bigger l3 cache to a point can medicate the need for faster ram .No ddr5 tests though since no zen 3 can take ddr5 😛
No I mean test an Intel platform that can take advantage of the speed but use games specifically that show massive gains on the 5800X3D over the 5800X. This test would see if the gains come from memory throughput or more specifically L3 cache. I honestly don't know what these tests would show, but it would be interesting.
#6078472
https://forums.guru3d.com/data/avatars/m/248/248291.jpg
The advantage of the 580X3D is that it's L3 bandwidth is 600Gb/s. 5X faster than any DDR5. And much lower latency. The problem is that it's only 96MB and when it ends, it hits the DDR4. And this is half the speed of DDR5.
#6078490
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Horus-Anhur:

The advantage of the 580X3D is that it's L3 bandwidth is 600Gb/s. 5X faster than any DDR5. And much lower latency. The problem is that it's only 96MB and when it ends, it hits the DDR4. And this is half the speed of DDR5.
Zen4 x3d is rumored to have three times more L3 cache. Sounds to good to be true. Maybe double.
#6078497
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nizzen:

I'm still using my Green 5600mhz Hynix A-die dimms, and I don't think this new 8000kit from g.skill is any better. Question is: How much better can it be 😛
I have the G. Skill Trident Z5 DDR5 7200 CL34 which is currently sitting at DDR5 7600 CL36 at 1.4v. Any of the Hynix A die dimms are highly overclockable and tweakable so I don't think you'll get much more out of these.
8533c34 on watercooling
Wow that's some tweaked memory right there. What voltages are you using to get those timings so low? You've also overclocked the uncore. There's a caution in my Asus ROG z790 motherboards about overclocking the uncore as it can cause the CPU to overvolt so I haven't messed with mine at all. Here's my DDR5-7600 CL36 scores at 1.4v. What do you recommend I do to get the latency down below 60ns that doesn't involve a lot of voltage LOL! https://imagizer.imageshack.com/v2/541x517q90/922/onhBnG.png
#6078498
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cucaulay malkin:

will that even run on am5 ?
Zen 4 requires a 1:1 ratio of memory controller to memory frequency for optimal performance. Intel CPUs lock in at 1:2 ratio when running DDR5. So basically, a Zen 4 CPU cannot run DDR5-8000 in a 1:1 ratio as the uncore will not clock that high. The highest you'll see Zen 4 running DDR5 is at around DDR5-6200 or maybe 6400 if they have premium silicon. I mean, it can technically run DDR5-8000 speeds but only with a higher ratio and that will penalize performance negatively so it's not worth doing. With Intel CPUs, the uncore runs at a much higher frequency at stock. Raptor Lake's stock uncore is 4.6ghz which makes using high speed DDR5 much more impactful.
incredible. that's what I would expect from ddr5 when I finally get it.
Just so you know, @nizzen's DDR5 is heavily overclocked and tweaked and doesn't represent stock settings. Stock DDR5-8000 would be significantly slower.
#6079647
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G.Skill knows what they are doing if they say 1.45 it will work at that voltage. It would not make any sense to launch a product that would fail or that would otherwise cause other components to fail. They would not risk it if they didn't test it heavily before launch. Ram speed does not matter in the way that most people think it does. Ram speed is there only to get the max out of your memory controller. So ether go 1:1 gear 1 or 1:2 gear 2 in which case you need to run your ram at 2x the speed to achieve the same damn performance as running 1:1. You can tune the timings in both cases . ddrX running at 8000 CL 40 is the same as ddrX at 4000 cl 20. The important thing is maxing the memory controller speed .

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