G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 48GB (2x24GB) 6400MT/s CL32-39-39-102 1.35V Desktop Computer Memory UDIMM - Matte Black (F5-6400J3239F24GX2-TZ5NR)

Slight improvement over 6000 EXPO kit I was running..... But barely. And I do mean barely. When will EXPO kits catch up with XMP? My 7900x performs better in any benchmark or game I check with the XMP 7600 kit over this or my 6000 kit. I'm thinking about trying to tighten timings, but the last 2 agesa updates have enabled huge leaps in memory performance with ryzen 7k and this kit doesn't peak them for standard 7k chips. I'll check with my X3D chip when it arrives and see. If memory performance behavior is the same I won't bother updating, if it's better then the 5th star may be earned. Overall I see better performance with a faster 32gb kit{7600 trident Z) and contrary to another review on this kit you can run faster and achieve slightly better performance with a higher speed 32gb kit...... Even so it feels silly running a 32gb memory kit with a 24gb graphics card.Update: I achieved withing 1% in anything for a benchmark or game/app I use for performance with this or the 7600 XMP kit with my 7950 X3D so I am sticking with it for the extra capacity. You can go with faster kits, but performance is easily within margin of error for any performance testing metric on the X3D cpu and you don't see the same gain as I did with a non X3D cpu in the same system.

set expo and works fine

I have done no stability testing and this depends on CPU memory controller bins and motherboard, but they work. Gskill have wide compatibility and good prices, so no complaints. The RGB is fine but it’s not going to win any awards. The only RGB on RAM worth paying attention to is Corsair Dominator which does not come in 48gb sets and will cost you a bit more for 32GB of 6000mt/s.7800X3DMSI X670e Carbon WiFiGskill 6400mhz EXPO 48GBRTX 4090 FESamsung 990 pro 2tb M.21200w PSU

Works flawlessly on my X670e Tachi Lite. Can't complain.

Let me save you some time. If you're even considering more than 32GB you're probably doing something that would be better than 64GB. In other words unless the price is amazing this might just be a dead end with no reasonable upgrade path. I am constantly running out of sysram even with a large paging file on a fast nvme. Ryzen 7900x can utilize so much more. I wish I'd just gotten 64 GB.However the speed really is remarkable and running 6400 aggressive profile with 2000 UCLK is fantastic and I wouldn't trade it for more, slower ram. Will think about picking up another set to make it 96 GB later this year but I'm not sure how ddr5 performs as 4 modules

Bought 2 kits for my 7900X3D build, has worked great straight out of the package with just choosing expo in the bios. Have had a couple failed boots that have seemed to be from the memory being unstable. But that hasnt been an issue for the last week. While this is QVL per GSkill on the ASUS X670E Hero board, thats only 1 kit not 2, so have to wait for a bios update to improve the memory stability with 2 kits installed.

Good working product. Looks Amazon owning up to the delivery promo that wasn't held up, although if they really owned up to it they would make the seller feedback editable.