G.SKill Announces DDR4-4266 64GB and DDR4-4000 128GB Memory Kits

G.Skill has announced two new additions to their already impressive stable of memory kits with the new DDR4-4266 64 GB (8×8 GB) and DDR4-4000 128 GB (8×16 GB) set designed for the latest Intel Core X-series processors using X299 based motherboards. G.Skill says the kits are the highest speed available at such a capacity (fastest in the World they say!) and will be available in 2019 Q1.

8×16 GB Trident Z RGB DDR4-4000 CL19, 1.35V

8×8 GB Trident Z RGB DDR4-4266 CL19, 1.45V

Both kits will use Samsung B-die ICs under the hood and were validated using an ASUS Prime X299-Deluxe II motherboard with the faster kit tested behind an Intel Core i9-9920X while the higher capacity kit used an i7-9800X. The two sets of memory support Intel XMP 2.0 for one-touch setting… though something tells me some tweaking will need to happen for this capacity and speed!

128 GB Kit Validation

64 GB Kit Validation

The DDR4-4000 128 GB set uses CL19-19-19-39 timings and 1.3V and will join the G.Skill Trident Z RGB family. The 64 GB DDR4-4266 SKU on the other hand, comes in the G.Skill classic Trident Z heat spreader with the same timings mentioned above, but uses 1.45V. Pricing was not mentioned but you can bet your last dollar these will not be cheap. Not only is the capacity high, but the speeds for the capacities will certainly fetch a premium.


Joe Shields (Earthdog)

Related Articles:

About Joe Shields 326 Articles
Joe started writing around 2010 for Overclockers.com covering the latest news and reviews that include video cards, motherboards, storage and processors. In 2018, he went ‘pro’ writing for Anandtech.com covering news and motherboards. Eventually, he landed at Tom’s Hardware where he wrote news, covered graphic card reviews, and currently writes motherboard reviews. If you can’t find him benchmarking and gathering data, Joe can be found working on his website (Overclockers.com), supporting his two kids in athletics, hanging out with his wife catching up on Game of Thrones, watching sports (Go Browns/Guardians/Cavs/Buckeyes!), or playing PUBG on PC.

Loading new replies...

Avatar of maxfly


2,071 messages 5 likes

wow, 16gb modules that do 4k. that is friggin incredible.

Reply Like


Benching Team Leader

13,258 messages 2,306 likes

16GB at 4000+ was actually available in earlier memory kits too but not in 8 memory module kits. I only wonder which setup will handle that. Most Skylake-X won't make 4000+ on 8 memory modules. My 7900X ends at about 4100 on 4x8GB sticks. 4x16GB kit could run at 4000 stable on one out of 5 or 6 X299 motherboards.

Reply Like

Avatar of mllrkllr88


121 messages 0 likes

Wow, amazing kits!! I have a feeling thees will be released with X599

Reply Like

Avatar of Alaric

New Member

8,237 messages 7 likes

I wonder how many rigs will be able to actually run 128 GB of RAM at 4000 MHz? It's an impressive feat for any of them, though. I remember when all I wanted was 8 GB of DDR 3 @1866 MHz, which sounds like painting on cave walls compared to this, but it was way less than 10 years ago.

Reply Like