7000 @CL40 ends up as 11.43ns of latency. Not great but I guess depends on the application if it favours either bandwidth or latency.

MaCk0y:

7000 @CL40 ends up as 11.43ns of latency. Not great but I guess depends on the application if it favours either bandwidth or latency.

maybe but i dont see ddr5 beating ddr4 memory in gaming for a while, high end ddr4 wont be bottlenecking alder lake for gaming thats for sure. it ll take a good year maybe 2 to see the benefits. even ddr3 2400mhz memory is still very good for gaming if you have good latency, latency is mostly what matters for game rather than bandwith

.. and when those kits are going to be available?

Jawnys:

maybe but i dont see ddr5 beating ddr4 memory in gaming for a while, high end ddr4 wont be bottlenecking alder lake for gaming thats for sure. it ll take a good year maybe 2 to see the benefits. even ddr3 2400mhz memory is still very good for gaming if you have good latency, latency is mostly what matters for game rather than bandwith

I agree with you, but not due to bottlenecking (there is so many thing that bottleneck in a PC before the ram lol) but due to technology: -DDR4 end of era: fast, low cl -DDR5 starting block: fast but carefully, not low cl for the same reason Same when my WS with DDR3 2400mhz were faster than 1st DDR4 1066mhz equivalent WS... but DDR4 still were evolution at this time. Having 1700 CPU compatible with both DDR4/DDR5 is nice if you already have big size at DDR 3200mhz (if you have less mhz it's useless to get a DDR4 mother board) My advise: buy DDR5 board as you will start your mem at DDR5 4800mhz, but don't buy mem like this one, just buy standard one, then in 6/12 month you will be abble to get proper DDR5. Plan B: Don't upgrade untill you can get the full set you need and with better everything, don't forget that early adopter generaly have all the issue of new technology !!!

Endymion:

.. and when those kits are going to be available?

i don't know this one but DDR5 are already in shop... It might be usefull for decorating office or shop for now as motherboard will be in shop the 11/4 as the CPU...

In almost every game I ever played boosting the frequency on the expanse of CL either gave me huge boost / small boost or no boost... it hardly ever "better" to go for the latency....

ViperAnaf:

In almost every game I ever played boosting the frequency on the expanse of CL either gave me huge boost / small boost or no boost... it hardly ever "better" to go for the latency....

https://www.purepc.pl/test-pamieci-ddr4-adata-xpg-spectrix-d60g-4133-mhz-cl19?page=0,17 8.8ns on 3600 c16 vs 9.2ns on 4133 c19

cucaulay malkin:

https://www.purepc.pl/test-pamieci-ddr4-adata-xpg-spectrix-d60g-4133-mhz-cl19?page=0,17 8.8ns on 3600 c16 vs 9.2ns on 4133 c19

not sure what you are trying to show me here - these graphs only prove my point... on CP2077 for example boost from 3200 CL14 (8.75ns) to 3800 CL17 (8.95ns) gave me 5-9fps...

ViperAnaf:

not sure what you are trying to show me here - these graphs only prove my point...

yes they do but you never provided any actual charts btw your performance increase is a result of infinity fabric speed increase too.

ViperAnaf:

In almost every game I ever played boosting the frequency on the expanse of CL either gave me huge boost / small boost or no boost... it hardly ever "better" to go for the latency....

AMD Zen?

rl66:

I agree with you, but not due to bottlenecking (there is so many thing that bottleneck in a PC before the ram lol) but due to technology: -DDR4 end of era: fast, low cl -DDR5 starting block: fast but carefully, not low cl for the same reason Same when my WS with DDR3 2400mhz were faster than 1st DDR4 1066mhz equivalent WS... but DDR4 still were evolution at this time. Having 1700 CPU compatible with both DDR4/DDR5 is nice if you already have big size at DDR 3200mhz (if you have less mhz it's useless to get a DDR4 mother board) My advise: buy DDR5 board as you will start your mem at DDR5 4800mhz, but don't buy mem like this one, just buy standard one, then in 6/12 month you will be abble to get proper DDR5. Plan B: Don't upgrade untill you can get the full set you need and with better everything, don't forget that early adopter generaly have all the issue of new technology !!!

I Think things are abit different this time with ddr4 to ddr5 , there are <$150 16gb kits of ddr4 cl 19 4800mt/s , 32gb of that is going to be both cheaper and ALOT better than most ddr5 kits available right now or in the near future. With ddr3 to ddr4 the latencies were worse, but not that much worse only a couple ticks cl 14 vs cl11 . with these its basically double the latency at the same frequencies and its more expensive, even more interesting, some of the newest ddr4 ics actually have head room at those speeds, I saw this review over on overclockers and they have a 5066mt/s kit up to cl22 5600mt/s . I wouldn't be surprise to see >6000 mt/s ddr4 if they continue developing it. ddr5 is bad buy in general at this point and probably will be for a while, doesn't really have any redeeming qualities, you can't even buy it in higher densities, and the powersavings are only really useful on laptops, even then I'm not even sure that the power savings are really significant either, as Ive not seen anyone really try cl36-40 on a ddr4 kit, the voltage may not need to be that high to hit ddr5 like speeds on the newer ics. If you are a consumer , and you upgrade semi regularly(3-4years), I highly doubt sticking with ddr4 is going to leave any performance on the table, if anything the opposite is likely true.

JamesSneed:

AMD Zen?

yes - but its usually much better with Intel so...

That latency...WTF... I'm gonna go against "trends" and say a DDR4-4800CL20 or faster kit plus whatever CPU @ ~ 5 GHZ will hold up for at least 3-4 years. I'm STILL on I7-4790K DDR3-2400CL10. Spend the savings on the big boi GPU to match whatever size OLED screen is a much better investment. Get the NEXT NEXT NEXT gen CPU+DDR5 when it is ready.

DDR5-7000 MHz? Have you ever tasted a lemon and made that face? Yea....that's me rn.

Valken:

I'm gonna go against "trends" m STILL on I7-4790K DDR3-2400CL10.

Ayy, 4790K owners unite! Still plays games just fine.

7000 MHz is just nuts. Period. Give us the benchmarks RJ!

SeriousSkeletor:

7000 MHz is just nuts. Period. Give us the benchmarks RJ!

It will probably go even higher as ddr5 matures.

user1:

I Think things are abit different this time with ddr4 to ddr5 , there are <$150 16gb kits of ddr4 cl 19 4800mt/s , 32gb of that is going to be both cheaper and ALOT better than most ddr5 kits available right now or in the near future. With ddr3 to ddr4 the latencies were worse, but not that much worse only a couple ticks cl 14 vs cl11 . with these its basically double the latency at the same frequencies and its more expensive, even more interesting, some of the newest ddr4 ics actually have head room at those speeds, I saw this review over on overclockers and they have a 5066mt/s kit up to cl22 5600mt/s . I wouldn't be surprise to see >6000 mt/s ddr4 if they continue developing it. ddr5 is bad buy in general at this point and probably will be for a while, doesn't really have any redeeming qualities, you can't even buy it in higher densities, and the powersavings are only really useful on laptops, even then I'm not even sure that the power savings are really significant either, as Ive not seen anyone really try cl36-40 on a ddr4 kit, the voltage may not need to be that high to hit ddr5 like speeds on the newer ics. If you are a consumer , and you upgrade semi regularly(3-4years), I highly doubt sticking with ddr4 is going to leave any performance on the table, if anything the opposite is likely true.

You are right if you consider the right now situation... But you have to consider actual DDR5 as the DD4 ultra high CL that we had at start of the DDR4, 6 month ago there was huge quantity with everything (even RGB lol) at good price. Also when AMD will go DDR5 too then DDR4 will go up in price as no more the main target Second point: despite the lack of semiconductors, the earthquake that destroyed mem stock of a factory and damaged 2 of them. The mem price is on way down (at least not everything is bad in computer segment) Last point: If you change your computer in 4 year... hmm well not so good argument you would not keep parts as Intel will have changed socket, type of ram and PCIe type many time since lol ((a bit of free trolling)) But DDR5 is still the future for the 3 big system (Apple, AMD and Intel) and DDR4 will fade away with time.

rl66:

You are right if you consider the right now situation... But you have to consider actual DDR5 as the DD4 ultra high CL that we had at start of the DDR4, 6 month ago there was huge quantity with everything (even RGB lol) at good price. Also when AMD will go DDR5 too then DDR4 will go up in price as no more the main target Second point: despite the lack of semiconductors, the earthquake that destroyed mem stock of a factory and damaged 2 of them. The mem price is on way down (at least not everything is bad in computer segment) Last point: If you change your computer in 4 year... hmm well not so good argument you would not keep parts as Intel will have changed socket, type of ram and PCIe type many time since lol ((a bit of free trolling)) But DDR5 is still the future for the 3 big system (Apple, AMD and Intel) and DDR4 will fade away with time.

I have to disagree about ddr4, the worst ddr4 at launch wasn't nearly this bad, if we take the jedec spec, 12.5ns is the tightest bin and 15ns being the loosest bin. Then we look at ddr5 the 13.75ns is the tightest bin, and 18ns is the slowest bin thus far, its pretty bad, it might change in the future, but as it stands there is clearly an intentional sacrifice being made at an architectural level inorder to push higher frequencies, I would not expect this to change much for the first few years at least, This stuff is designed for servers pushing huge amounts of io/data with gigantic caches. It may not ever be as fast as ddr4 on a timings basis imo. Also to add ,I think if you upgrade fairly regularly, you probably won't want to keep this early ddr5, since its loose and it doesn't clock very high (relative to future bins) and its not available in high densities, so carrying it forward doesn't really have all that much appeal. If you want to keep the motherboard/ platform for 5+ years, then maybe it makes sense. since you'll be able to add more ram later on than ddr4 can offer. (source on jedec info anandtech) edit: also this in the article it states

It is interesting to note that the DDR5 specification has provision in the hardware registers for CAS Latencies from CL22 up to CL66. This might be interpolated to mean that even with a sufficiently binned DDR5 memory module, or with overclocking, CL22 might be the lowest possible for the hardware.

that means is that is probably going to impossible to set it anything close to that. by comparison, ddr4 can be set below cl 10, no memory actually shipped below cl10 afaik.

Slow ddr5... https://images2.imgbox.com/73/f1/Pp1ci963_o.png https://images2.imgbox.com/c4/97/mKnmDbVm_o.png Wait until faster kits arrive Feel free to benchmark your cpu, and post results 😉