Geil Super Luce DDR4-3400 16GB Quad-Channel Kit Review

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jossrik

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DDR4 sounds like a lot of trouble to me, I really hope they get all of this settled when it hits mainstream motherboards and CPUs. It may just be me, but it seems like a lot of work for memory and not a lot of payoff. It doesn't even sound fun to play with if you don't have a stable place to start from. I can justify the extra money on the processor for a 6 core with hyperthreading, compared to the 4790K, I can even justify the extra money on the board. But the premium on memory right now just seems like a bad deal. Even the inexpensive DDR4 memory seems way too pricey at this point. I know, prices will come down as it becomes more mainstream. I know, slower memory is more stable right now. It's just that the rest of the stuff is high end, and the high end memory doesn't seem to be able to keep it's hands clean.
 

Crashman

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What's with all the gloom? I see a $50 price premium on 16GB kits, which is big, but if you already paid $50 more for the board it's probably not a deal breaker. And there are lots of kits that work correctly out of the box, all the way up to DDR4-2666. Add DDR4-3000 if you don't care about the 125 MHz BCLK change and all the CPU changes that go with it (you probably do care about those things, though), so still 2666.

And all major motherboard manufacturers are now optimizing for DDR4-3200 at stock BCLK, so it won't be long before you'll be able to select from 2400, 2666, and 3200 kits that operate normally out of the box. Heck, that's probably possible already, we just haven't received the right 3200 kits yet.

I've no clue why companies are optimizing for 2666 and 3200 but not the middle step, 2933. For some strange reason 10x and 12x multiplier appear to work better than 11x, but I'm not sure if it's a firmware or hardware limit.

So, 2133/2400/2666 for now, no configuration ills, and the dollar difference is small enough to be just a nuisance on such an expensive platform.

 

jossrik

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Yeah, there is that. I was looking at them a couple days ago, I think it's just the recent reviews here on Toms. It seems like they're all looking at high end stuff and forgetting that even the fastest RAM doesn't make that much of a difference when it comes down to frames. As far as the premium, I was looking at the 4790K, which is like around 340$ give or take, (I don't have a microcenter anywhere near here), and the 5820K, which is around 380$, if you're all ready in for 340, that extra 40$ isn't so bad. Same with the motherboards, if you're all ready in the high end boards you're looking at 200 - 300 for either 1150 or 2011-v3. Either way you go the price difference isn't that bad percentage wise. You can get 16Gb of pretty decently fast DDR3 for around 100$, and the cheapest DDR4 runs around 150$ for 16Gbs. Ya, it's the same 50$, but being that it's so much cheaper for the DDR3 it seems like it's a bigger deal. You're right though, the future for DDR4 is bright. (forgot my happy meds toNight.) Looking forward to when it becomes mainstream and we can get 32Gbs of maybe 3800 for a decent price. It'll be a few years. I'm still mad I bought my 3Tb HDD for 85$ three years ago, went to get a new one cause I don't trust them much longer than that, and they're still 100$. I'm seriously considering getting an external and just taking the drive out and putting that into my computer. :)
 

Crashman

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In DRAM, we generally try to find the best value in enthusiast parts, plus the best parts, and push back against the best parts by talking about the best-value enthusiast parts. The middle market hasn't opened up much yet, though. The G.Skill DDR4-3000's used as a reference are probably the closest thing to "enthusiast mainstream" at this point, but maybe we'll see a $250 3200 kit in the near future? We can always keep our fingers crossed.

Since 12x appears to be the highest completely stable multiplier for this platform, we'll probably see a platform update before the mid-market exceeds DDR4-3200.

 

uglyduckling81

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Is RAM actually holding us back though? I want to see a comparison of DDR3 RAM vs 4.
I'm all for increasing speeds across the board but is RAM an issue at all right now?
 

milkod2001

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Is RAM actually holding us back though? I want to see a comparison of DDR3 RAM vs 4.
I'm all for increasing speeds across the board but is RAM an issue at all right now?
ddr4 is basically currently quite overpriced ddr3 with improved voltage from (1.5 to 1.2 ) which transfer into lower power consumption while in performance making zero difference.

ddr4 makes a sense in portable devices where power consumption matters a lot or in large server farms where it could save $$$ over time. Other than that it is quite unimpressive :(
 

Sabishii Hito

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I tried a couple of these kits a few weeks back, they had terrible compatibility with Asus X99 boards. Even on the Rampage V Extreme, setting XMP resulted in no boot. I don't think I ever got 3400 running even on manual settings like using 125 strap and the 3333 divider, clocked up to 3400. Then again these sticks are Samsung-based, which have less compatibility in my experience than Hynix-based kits. For instance, G.Skill Ripjaws 4 3300 16-16-16 can run no issues at 3400 on my setup.
 

Sabishii Hito

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Not surprised with Geil dropping the MSI Xpower support. to date the only board that passes validation with DDR4-3400 kits is the Gigabyte X99 SOC Champion due to having only 4 DIMM slots and shorter traces to the CPU socket, along with having the extra CPU pins.
 

Crashman

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Right, they got us the message before the review posted but it's not like I was going to scrub a week's work and start over with a board I don't even have yet.

 

Sabishii Hito

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Right, they got us the message before the review posted but it's not like I was going to scrub a week's work and start over with a board I don't even have yet.
The VDIMM issue is the most troubling as the Rampage V is pretty spot on with what is set in UEFI from my measurements and indeed the Geil sticks would NOT boot at 3400 with 1.35v set.
 

Crashman

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Are you confirming that with a voltmeter at the DIMM? Asus likes to add 20mV, sometimes a little more.

 

Sabishii Hito

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I used the designated voltage check point near the 24-pin ATX power connector, though I can certainly check from a DIMM slot to see if there are any major differences in the reported voltage.
 

Sabishii Hito

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Are you confirming that with a voltmeter at the DIMM? Asus likes to add 20mV, sometimes a little more.
I used the designated voltage check point near the 24-pin ATX power connector, though I can certainly check from a DIMM slot to see if there are any major differences in the reported voltage.
Rampage V Extreme, UEFI 0802 BIOS set 1.35v

DMM reading using Q-Check point: 1.363v
DMM reading from DIMM slot: 1.362v
 

Crashman

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So it's only 13mV over. That's closer than most!
 

goinginstyle

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The 3400 kits work fine on the Asus R5E and Deluxe boards, maybe you need an EFI update on the Pro board or GEIL has the XMP profile totally screwed up by the looks of it.
 

Crashman

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I'd ask some people to send along a bunch of 3400 kits to compare, but 3400 isn't a "legit" speed anyway. The only data rates I really want to test are those available at 100 MHz and 125 MHz base clock (3200, 3333, 3500, 3666)

 

seinfeld

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you didnt add any crucial ddr4 2133 for comparison. oh wait cause that would mean this test is USELESS. majority of PC owners know that there is little diff between high speed high latency vs low speed low latency. and its not worth the extra dosh!
 
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