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FRONTPAGE G.Skill Officially Announces Ripjaws 4 Series DDR4 Memory Kits
- Thread starter Overclockers.com
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- Jun 28, 2012
Even the 2400 is cas15
Again, it's all about access time.
That's the "entry" level of DDR4, which is roughly equivalent to DDR3 1600 CAS9, which we called standard to mid level for DDR3.
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I am hopeful some tighter stuff will hit the streets.
One thing this does confirm, a high end x99 set up will not be for the faint of heart
One thing this does confirm, a high end x99 set up will not be for the faint of heart
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Of course tighter timing stuff will come around later. Just like DDR, DDR2, and DDR3 did...
Speeds will go up more, timings will come down. They need time to refine the process.
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If someone could be so kind as to enlighten me. Is 2400mhz CL11 ddr3 better or equivalent to 2400mhz CL16 ddr4? Voltages aside of course. The ddr4 starting at 1.2v hopefully means a whole lot of OC headroom
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You get benefits (in gaming) up to around 2133MHz unless you are using the iGPU of either Intel or AMD as they use system ram for vram so the faster it is, the faster your iGPU is as well.
Its simply a natural progression.
On LN2 maybe...http://www.jagatreview.com/2013/06/...vengeance-pro-3200-mhz-cl11-di-computex-2013/
Just a side note on some of the timings/speed relationship here...
You can work out RAM access time this way: ( CL / Frequency ) * 1000.
CL16 / 3200 MHz * 1K = 5ns
15 / 3200 * 1K = 4.68ns
8 / 1600 * 1000 = 5ns
Though it should be obvious that the 3200MHz has more bandwidth.
Infinite, do what EarthDog did here.
Lower nanosecond = better.
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I see. Ok. So. CL11 2400mhz ram would be 4.58ns. Not bad. Would be better at CL10 of course.
Hi Guys,
There is a lot of misconception about DDR4 out in the wilds, but I found a great DDR4 White Paper that Corsair has on their web site. It's a great read and will explain the thrust behind DDR4, what it means initially, and what it means going forward. Will more than likely answer most of the questions people have at this point.
http://www.corsair.com/~/media/Corsair/download-files/manuals/dram/DDR4-White-Paper.pdf
There is a lot of misconception about DDR4 out in the wilds, but I found a great DDR4 White Paper that Corsair has on their web site. It's a great read and will explain the thrust behind DDR4, what it means initially, and what it means going forward. Will more than likely answer most of the questions people have at this point.
http://www.corsair.com/~/media/Corsair/download-files/manuals/dram/DDR4-White-Paper.pdf
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Although I'd seen some European pricing on DDR4 earlier at around $2/Gb, the NewEgg reference above indicates less. And this article indicates that there will be some competition due to added capacity in the supply chain.
http://www.digitimes.com/news/a20140828PR200.html
http://www.digitimes.com/news/a20140828PR200.html
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- Jun 28, 2012
Most European prices will include import fees and VAT.
Actually older memory had always tighter timings but newer had higher density. The same for DDR1, DDR2 and DDR3. Also newer were usually running at lower voltages.
Example:
DDR1: Winbond chips at CL1.5-2 but 256MB modules up to 3.2V -> Samsung/Hynix at CL3 but 512-1024MB modules 2.5V
DDR2: Micron D9 CL4-5 512-1024MB modules up to 2.4V -> Promos/PSC/Qimonda 1024-4096MB CL5-6 1.8V
DDR3: Micron D9/ Qimonda / Elpida CL6/7 1-2GB modules 1.65-2.0V -> Samsung/Hynix/Micron CL9/10 4-8GB modules 1.25-1.65V
First DDR4 will be closer to JEDEC specification but I expect that binning for high end series will start soon and we will see higher clocked memory running at tighter timings.
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- Jun 28, 2012
You left out a key part here, the speeds at those given timings.
Actually I didn't. I just haven't seen it so important to add it there.
You can compare DDR1 Winbond BH5/6 CL1.5-2 2.7V+ to Hynix/Promos DDR-400 CL3 kits at 2.5V , Micron D9 DDR2-800 4-3-3/4-4-4 1.8-2V to Qimonda/Promos DDR2-800 5-6-6/6-6-6 1.8V or DDR3-1600 Elpida/Qimonda/PSC 6-6-6/7-7-7/6-7-6 to DDR3-1600 Hynix/Nanya/Micron 9-9-9/10-10-10.
In all cases older memory was running at tighter timings. If you need higher clocks then here you are:
DDR1: 500-550 2-2-2/Winbond , later available only Samsungs CL2.5/3-4-4 500+
DDR2: 1066-1200 4-4-4/5-5-5 Microns , later available only Promos/Qimonda 1066-1200 5-6-6/6-6-6
DDR3: 2400/2500 PSC 9-11-9 , now we have 2400 CL10-12-12 or 11-13-13 kits and any higher clock require more relaxed timings so performance drop
You don't think that overclockers keep benching on older memory just because they like retro stuff ...
G.SKILL Ripjaws 4 Achieves DDR4 Memory Record at 4004MHz
On ASUS ROG X99 Rampage V Extreme Motherboard and Intel Core i7-5930K CPU
Taipei, Taiwan – 30 August 2014 – G.SKILL International Co. Ltd., the leading high performance memory designer and manufacturer, is proud to announce breaking the DDR4 memory speed record at 4004MHz extreme frequency.
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