Corsair Dominator Platinum RGB DDR5-6600 CL32 2x 16 GB

[ir_cow]

Corsair is at it again, this time the company brings forward the Dominator Platinum RGB line to the DDR5 market. In today's review we will be looking at this ultra-low latency kit. With an impressive XMP profile of 6600 MT/s and accompanying timings of 32-39-39-76 to match, Corsair isn't fooling around. Tag along as we put the Dominator Platinum RGB DDR5-6600 through its paces!

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[Space Lynx]

If I could get this kit for like $290 someday I'd do it. Hopefully prices keep coming down.

 

[ThrashZone]

Hi,
Nice finally a cl x2 lower than the first two numbers of the speed bravo corsair
Now g-skill get with it but even lower

 

[P4-630]

No Dominator CL32 set here yet.

Prices in my country
(I have the 6000 CL36 set)

 

[mechtech]

Hmmm I wonder if running them at 1.40V+ will reduce their lifespan?

 

[P4-630]

Hmmm I wonder if running them at 1.40V+ will reduce their lifespan?

Warranty is Limited Lifetime, they sell them at 6600 speed @ 1.40 V

I got my Dominators at 6000 36-36-36-76 @ 1.35V, highest temps during gaming in summer I have seen the sticks around 46 degrees.
These sticks may run somewhat hotter though...

 

[r3ptil3]

ICUE.. no thanks.
I hope it is also no problem to configure the LEDs with Mainboard-RGB-Tools?

One big advantage of the Dominator DDR5 Platinum series, is definitely the better RAM cooling compared to Gskill (I think about 6-10 degrees cooler).

It will be very interesting to see if RAM speed over 6000 MT/s is a good choice for ZEN4 or not.
IF 6000 MT/s is the sweetspot, then there would hardly be a reason to choose this RAM instead of 6000 MT/s very low latency modules.

 

[Deleted member 185158]

Original Post quote, cause it won't Autoquote ir_cow....

Corsair is at it again, this time the company brings forward the Dominator Platinum RGB line to the DDR5 market. In today's review we will be looking at this ultra-low latency kit. With an impressive XMP profile of 6600 MT/s and accompanying timings of 32-39-39-76 to match, Corsair isn't fooling around. Tag along as we put the Dominator Platinum RGB DDR5-6600 through its paces!

Corsair brings a heatsink and a sticker. It's not even their own PCB design.

Just saying....

Is it Samsung Micron or SK Hynix that's bringing these clocks and timings to the table? Got any juicy detials??!??!!!??

 

[Nater]

Original Post quote, cause it won't Autoquote ir_cow....



Corsair brings a heatsink and a sticker. It's not even their own PCB design.

Just saying....

Is it Samsung Micron or SK Hynix that's bringing these clocks and timings to the table? Got any juicy detials??!??!!!??

"A closer look at the ICs shows that these are SK Hynix (H5CG48MEBDX014J)"

 

[ir_cow]

Hmmm I wonder if running them at 1.40V+ will reduce their lifespan?

SK Hynix spec sheet says 1.5v is "absolute maximum". Though the XOC guys do 1.65V.

Corsair brings a heatsink and a sticker. It's not even their own PCB design.

uhh? What other vendors PCB looks like this?

It will be very interesting to see if RAM speed over 6000 MT/s is a good choice for ZEN4 or not.
IF 6000 MT/s is the sweetspot, then there would hardly be a reason to choose this RAM instead of 6000 MT/s very low latency modules.

We will find out whenever it comes out. I will be sure to find out

 

[Deleted member 185158]

SK Hynix spec sheet says 1.5v is "absolute maximum". Though the XOC guys do 1.65V.


uhh? What other vendors PCB looks like this?


We will find out whenever it comes out. I will be sure to find out

Well it would be like DDR4.

You have PCB A0, A1, A2 ect. My B-Die is A2 for example.

1.65v is probably light by the way for XOC guys. Ddr4 up to like 2.0v on air. I could see people jamming 1.8v in em. I've yet to push past 1.40v myself, but not looking for golds with my particular ddr5 kit.

 

[ir_cow]

1.65v is probably light by the way for XOC guys. Ddr4 up to like 2.0v on air. I could see people jamming 1.8v in em. I've yet to push past 1.40v myself, but not looking for golds with my particular ddr5 kit.

One of my memory sources (vendor) says not the go above 1.5v, so I don't... it may be fine for short term, but the ICs get very sad in the lab (so I hear). commercially, I don't think we will see above 1.5 until the next IC revision at least.

Those XOC guys don't care about warranty, keeping the DRAM and going LN2 kinda helps with the voltage thing

 

[Deleted member 185158]

One of my memory sources (vendor) says not the go above 1.5v, so I don't... it may be fine for short term, but the ICs get very sad in the lab (so I hear). commercially, I don't think we will see above 1.5 until the next IC revision at least.

Those XOC guys don't care about warranty, keeping the DRAM and going LN2 kinda helps with the voltage thing

Yeah, I agree and skeptical to go that high with vdimm myself, 1.5v should be pretty reasonable to gain quite a bit of frequency, though 1.2 and 1.3v seems to carry pretty far actually.

Those XOC guys... well I'd want to say there are plenty of sponsored benchers, they don't need warranty or even pay for the memory. They just need vdimm and LN2

 

[Nanochip]

Is the dominator icue rgb issue related just to this specific ddr5 6600 mt/s kit, or do all the dominator ddr5 modules have the same problem ? I have the dominator ddr4 kit and never had any issues with rgb/icue.

 

[ir_cow]

Is the dominator icue rgb issue related just to this specific ddr5 6600 mt/s kit, or do all the dominator ddr5 modules have the same problem ? I have the dominator ddr5 kit and never had any issues with rgb/icue.

Well that is the ultimate question right?. I have two Dominator 6600 MT/s kits and a Vengeance 6000 MT/s. All three have this problem for the two motherboards mentioned at least. What motherboard (+BIOS #) and kit do you have exactly? Also did you change any BIOS settings related to memory you can remember?

Edit: I figured someone would say they don't have this problem. My suspicion is that its BIOS / Motherboard dependent. As in depending on the BIOS version, SPD Write may be enabled by default. Some motherboards may not even give you the choice, so the vendor left it enabled. I don't really know the extent of this issue, just that Corsair says it is a problem for ASUS and I personally found it to be the same for at least one Gigabyte Z690 motherboard.

 

[Nanochip]

Well that is the ultimate question right?. I have two Dominator 6600 MT/s kits and a Vengeance 6000 MT/s. All three have this problem for the two motherboards mentioned at least. What motherboard (+BIOS #) and kit do you have exactly? Also did you change any BIOS settings related to memory you can remember?

Edit: I figured someone would say they don't have this problem. My suspicion is that its BIOS / Motherboard dependent. As in depending on the BIOS version, SPD Write may be enabled by default. Some motherboards may not even give you the choice, so the vendor left it enabled. I don't really know the extent of this issue, just that Corsair says it is a problem for ASUS and I personally found it to be the same for at least one Gigabyte Z690 motherboard.

My bad I meant to say I have the dominator ddr4 kit (without any issues), but autocorrect put ddr5. My question still stands is it something unique to the 6600 mt/s kit or do all of their ddr5 kits have problems, because if they all do, then I would’ve expected to have heard other channels/reviewers complaining too, but I haven’t heard anything.

Nonetheless, thanks for bringing this issue to light.

 

[Deleted member 185158]

Well that is the ultimate question right?. I have two Dominator 6600 MT/s kits and a Vengeance 6000 MT/s. All three have this problem for the two motherboards mentioned at least. What motherboard (+BIOS #) and kit do you have exactly? Also did you change any BIOS settings related to memory you can remember?

Edit: I figured someone would say they don't have this problem. My suspicion is that its BIOS / Motherboard dependent. As in depending on the BIOS version, SPD Write may be enabled by default. Some motherboards may not even give you the choice, so the vendor left it enabled. I don't really know the extent of this issue, just that Corsair says it is a problem for ASUS and I personally found it to be the same for at least one Gigabyte Z690 motherboard.

Hey I noticed in your screen shots in the review of CPU-Z displays 2200mhz Cache frequency. Just wondering if performance would be a lot greater running a fixed frequency? Another thing I've noticed with my platforms that turning off HT seems to increase memory bandwidth with a decent percentage. Have you witnessed that by any chance?

 

[ir_cow]

My bad I meant to say I have the dominator ddr4 kit (without any issues), but autocorrect put ddr5. My question still stands is it something unique to the 6600 mt/s kit or do all of their ddr5 kits have problems, because if they all do, then I would’ve expected to have heard other channels/reviewers complaining too, but I haven’t heard anything.

Nonetheless, thanks for bringing this issue to light.

I didn't have this issue with DDR4 Dominator or Vengeance either first hand. However a quick google search shows the usual conflict with the motherboard RGB software. This wasn't my issue with the DDR5 kit since I tried it multiple ways (icue only, MB software only, both together, etc) and even reinstalled as well. Having both installed doesn't matter, you just can't have them running at the same time or you get a conflict.

Why no one else has reported it. It could be a lot of reasons and I don't know the answer. From a speculation standpoint, it may not be wide spread and only certain revision, the reviewer didn't actually check to see or possibly the BIOS setting was enabled already (for whatever reason). If I knew it was 100% going to happen to everyone, I would have wrote it that way. You can google Corsair DDR5 iCUE issue and find a number of reddit posts. So its not just me.

Hey I noticed in your screen shots in the review of CPU-Z displays 2200mhz Cache frequency. Just wondering if performance would be a lot greater running a fixed frequency? Another thing I've noticed with my platforms that turning off HT seems to increase memory bandwidth with a decent percentage. Have you witnessed that by any chance?

Hmm. I'll have to look into this. CPU-Z sometimes reports wrong values, but I don't know the true impact of ring cache on DRAM either. I may have to spend a few days to benchmark different ones. I vaguely remember testing it with DDR5-6000, and got similar results using ring x38 vs auto when during the review of the ASUS Z690 Hero motherboard. That isn't real evidence to give a clear answer though.

 

[dicobalt]

This only proves DDR5 RAM is still a waste of money. Still too slow, still too expensive, still no new DRAM fabs till 2024. I know there are always growing pains for a new DDR standard, but DDR5 seems at least a year too early. Who knows how well these boards will even work with the good stuff when it finally comes out.

 

[Planet]

Corsair brings a heatsink and a sticker. It's not even their own PCB design.

Dominator Platinum PCB is a custom PCB designed by Corsair.

You have PCB A0, A1, A2 ect. My B-Die is A2 for example.

What you're referring to is the JEDEC raw card version. However there is no JEDEC UDIMM raw card design for 10 layer PCBs. While component location may be the same as the raw card that does not mean that the copper layers underneath are the same.

 

[Deleted member 185158]

Hmm. I'll have to look into this. CPU-Z sometimes reports wrong values, but I don't know the true impact of ring cache on DRAM either. I may have to spend a few days to benchmark different ones. I vaguely remember testing it with DDR5-6000, and got similar results using ring x38 vs auto when during the review of the ASUS Z690 Hero motherboard. That isn't real evidence to give a clear answer though.

The Cache should throttle and boost similar to the Cpu during different loads. This may be for or against constant figures, but always a stock run then maybe some user setup for fixed figures for some comparisons. It is after in the past a common place to overclock the cache to boost that memory performance, something that may be interesting to some people.

I'm not entirely sure the cache frequency of all the 12th gen processors. They may vary from part to part as well. Something that can be noted during your testing. For example a 12600K might have a lower cache frequency at stock than a 12900K at stock.

Just some food for thoughts

This only proves DDR5 RAM is still a waste of money. Still too slow, still too expensive, still no new DRAM fabs till 2024. I know there are always growing pains for a new DDR standard, but DDR5 seems at least a year too early. Who knows how well these boards will even work with the good stuff when it finally comes out.

Like DDR4 was cheap when released? DDR3? Shit I remember DDR2 kits like Corsair Dominators, back then over 250$. Which back then, was a quite a bit of money. Inflation, yeah. But also wages have increase too since that time....

A little reality check for you. My G.Skill 4267mhz B-Die kit was over 350$. It was a total of only 16gb 2x8 and didn't have unbuffered ECC chip installed. DDR5 the standard is 32gb and comes equipped with unbuffered ECC on all kits.

My current DDR5 kit is 2x8gb and was well under 200$. And at 5800mhz, it's clobbering just about all ddr4 b-die benchmarks.

Click the link at the OP, all the DDR4 memory was at the bottom of the benchmark lists, where system memory would make a difference.

(Sorry for venting, just tired of reading that ddr5 is "slow" but there isn't really any evidence of that. It's like saying DDR2 is still fast....)

Dominator Platinum PCB is a custom PCB designed by Corsair.

What you're referring to is the JEDEC raw card version. However there is no JEDEC UDIMM raw card design for 10 layer PCBs. While component location may be the same as the raw card that does not mean that the copper layers underneath are the same.

Thank you for that clarification !

 

[Dr. Dro]

This kit is fantastic. It's a shame that 64 GB (so two kits) of it will cost a pretty penny, but it's totally worth it. I insist on Dominator Platinum memory.

 

[Nanochip]

Dominator DDR5 not detected in iCUE

I updated the bios on my ASUS z690 maximus apex two days ago and now the ram is not being detected in iCue. RGB is stuck on watercolor. I do not not use Asus Aura. It was working just fine prior to the bios update. BIOS Version/Date: American Megatrends Inc. 0702, 10/22/2021 Ram kit: CMT32GX5M2B5...

forum.corsair.com

Interesting, other asus z690 users have had this problem since November 2021.

 

[Metroid]

I hope memory manufactures start making dual 2 x 32gb 6000mhz modules with good timings, less than 30cl for ryzen 7xxx.

 

[CosmicWanderer]

At this point I would pay for Corsair to remove RGB, the same way I would to remove ads from apps I like.

It would be setting a bad precedent but given how bad RGB is getting, I would pay extra just to rid myself of the inconvenience.