2021/09/10 16:27:28
WebsterRKL
I love this mem kit so much. 
 
Besides the increase in single thread performance, the super-fast ddr4 speeds are the greatest thing Rocket Lake has to offer. 
 
Good Luck guys - you only need a Z590 Dark bios update for your 5333 kits to run sweet. 

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2021/09/10 17:40:04
WebsterRKL
This is also a very sweet profile - the 4800Mhz CL17 b-die kit running at 5066Mhz 17-17-17-37.
 
Those Read Write Copy speeds are brilliant. 
 
But the 5066Mhz CL17 profile will only allow for 5.1Ghz CPU OC, whereas the 5333 Hynix kit you can run 5333Mhz CL20 5.3Ghz CPU.
 
Unfortunately, when I dropped the Hynix kit to 5333 CL19, I could no longer clock the 11600K at 5.3Ghz, hit a hard wall had to settle on 5.2Ghz CPU.
 
The 5333Mhz Hynix kit, you can run 5.3Ghz CPU 5.3Ghz DDR4, that's a pretty cool sweet spot. 

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2021/09/10 18:21:26
Nereus
 
Nice, that's what I was wondering about - the AIDA64 memory bench and latency. Nice numbers there. My 4800 is 2x16GB CL20 instead of 2x8GB CL17, so latency is not as good on the benchmark, but there's always a trade-off for higher capacity. I should try overclocking these a bit and/or trying out my 2x16GB Corsair Dominator Platinum 4000GHz downclocked to 3600/3733 Gear 1 with tighter timings. There's a lot of things I should do, but time is always short.
 
 
2021/09/10 20:14:01
WebsterRKL
Nereus
 
Nice, that's what I was wondering about - the AIDA64 memory bench and latency. Nice numbers there. My 4800 is 2x16GB CL20 instead of 2x8GB CL17, so latency is not as good on the benchmark, but there's always a trade-off for higher capacity. I should try overclocking these a bit and/or trying out my 2x16GB Corsair Dominator Platinum 4000GHz downclocked to 3600/3733 Gear 1 with tighter timings. There's a lot of things I should do, but time is always short.
 

 
A little bird told me Gskill will introduce a 5200Mhz Dual Rank Hynix DDR4 kit very soon. WOW! 
 
Whaaaaaat? It won't be for me, but those overclocking guys, they will LOVE it! 
 
I'm just gonna sit back and enjoy 5600Mhz and 5866Mhz and get a lot of work done.
 
Wake me up for 7400Mhz DDR5 the Z790 Dark board, and Raptor Lake in 18months. 
 
2021/09/11 21:33:41
B0baganoosh
I played with rblaes_99's memory kit on my FTW motherboard and had a little fun.
 
First boot, tried to just send it with XMP 1 profile (5333MHz), CPU at default settings. Windows loaded, but crashed right after logging in. So no go there.
 
Then I tried the 5066 setting, but it changed my bclk to 100.7. I tried to run a 52x multiplier on 1-6 core utilized, 51x on 7 and 50x on 8. That got me this:

 
It was pretty stable, but not terribly impressive in benchmarks because I couldn't get my CPU back up to 5.3GHz. So then I tried to fix the bclk back to 100.0 and set my CPU multipliers at 53x (1-4), 52x (5-6), and 51x (7-8). Then the memory was table at 5066MHz, with 20-30-30-50 for timings:

Not too shabby, but Time Spy and Port Royal didn't really show any advantage at all to this (gpu scores almost identical to before and CPU score was lower because I couldn't run 5.3GHz all-core, which I was running for Time Spy benchmarks before). Being that my primary focus is gaming, there may be some other apps where the boost in read/write speed is helpful. For me, I get better stability and gaming performance (allowing my CPU more overclocking stability primarily) with my 3733MHz gear 1 memory (16-16-16-39) that gets about 54700MB/s on read and 48ns for latency on the aida-64 test. Also, it's 32GB on two stick and completely stable, so it really is hard to beat.
 
I also got this to boot but it had some errors on a stability test:

Also, I have no idea how my read speed only went up that small amount from the 3733MHz stuff. How is that possible? Shouldn't that be much higher? Was this less stable that I thought even when I didn't get any errors or crashing?
 
 
TLDR: Confirmation that you need over 5000MHz and some tight timings to do better than gear 1 @ 3733MHz, cl16. I'm not sure what that number is, but it seems high. I would think at least 5333MHz cl18 would be required. 
 
2021/09/11 22:39:43
DEJ915
DDR4 4600+ gets around 70GB/s bandwidth, not sure why your speeds are so low for 5000 that is pretty odd.  I ran luumi's 4800c19 profile and get 72GB/s read on my dual rank sticks.
2021/09/12 01:35:21
bscool2
@B0baganoosh
You need to look at your subtiming's and set them manually in the bios.
 
They are getting set really loose to be able to run the high clocks. That will cause a big decrease in performance. You can use the latest Asrock Timing Config or MSI Dragon Ball to view timings in Windows and post screen shots if you want help on what timings need to be changed.
 
 
 MSI is portable app.
 
These thread have more info
 
Edit nevermind looks like they edit out links. You will have to google them if you care to fix it. Or go to overclockers . net and post in the intel memory oc section.
 
 
 
 
2021/09/12 06:35:00
B0baganoosh
bscool2
@B0baganoosh
You need to look at your subtiming's and set them manually in the bios.
 
They are getting set really loose to be able to run the high clocks. That will cause a big decrease in performance. You can use the latest Asrock Timing Config or MSI Dragon Ball to view timings in Windows and post screen shots if you want help on what timings need to be changed.
 
 
 MSI is portable app.
 
These thread have more info
 
Edit nevermind looks like they edit out links. You will have to google them if you care to fix it. Or go to overclockers . net and post in the intel memory oc section.


Which timings? You can see that I had tightened them to 20-30-30-50. The rest were at the xmp profile settings.
2021/09/12 06:37:30
rblaes_99
i've never been so frustrated by RAM before this....
 
also ive been reading about DDR5 and Z690s..... with gears 1-4!  ****!!!!!!  
 
 
2021/09/12 07:05:01
Nereus
rblaes_99
also ive been reading about DDR5 and Z690s..... with gears 1-4!  ****!!!!!!  

Whaaaaaaaaat? Omg... next thing it'll be like mountain/racing bikes and we'll be talking Shimano 12 speed gears. Ugh. This is why people drive automatics.
 
 

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