Best RAM to pair with RTX 5090 for high-end gaming?

sooo i went through this last year when i thought i needed the fastest ram on the planet for my build. honestly, it was a massive headache. i spent way too much money on a kit that literally wouldn't even boot at its rated speed... super disappointing and not as good as expected. i finally gave up on the "ultra-high" speed hype and grabbed the G.Skill Flare X5 64GB (2 x 32GB) DDR5-6000 CL30-40-40-96 for about $200. it saved me nearly $150 compared to the 8000MT/s stuff and the performance difference in 4k was basically zero. tbh, for a beast like the 5090, i'd definitely go 64GB just to be safe for the future, but dont waste money on the bleeding edge speeds unless you enjoy troubleshooting bios settings all night lol. i've learned the hard way that stability is king. what cpu are you leaning toward tho??

In my experience, trying for 8000MT/s was unfortunately not as good as expected... basically a disaster. I compared Corsair Vengeance RGB 64GB (2x32GB) DDR5 6000MHz CL30 vs G.Skill Trident Z5 RGB 64GB (2x32GB) DDR5 6400MHz CL32 and I think the Corsair is way safer. 64GB is highkey the move for a 5090 rig for future-proofing. Basically dont chase 8000MT/s, it just leads to headaches lol. gl!

> I’m stuck on which RAM kit will actually keep up without causing bottlenecks. I’ve been looking at high-speed DDR5, but should I aim for 8000MT/s... WARNING: DO NOT just buy the highest MT/s number you see on the box lol. I’ve seen so many people drop huge money on 8000MT/s kits only to realize their motherboard or CPU memory controller can't even post with them. It’s a total stability nightmare and honestly a waste of cash for most users!! I’ve been building high-end rigs for 15+ years and i actually tried chasing those elite speeds on my last enthusiast build... spent like three days just trying to get the PC to boot consistently. In my experience, 6000MHz CL30 or maybe 6400MHz is still the actual sweet spot for stability. For a beastly 5090 build, I’d highkey suggest going 64GB too. Modern 4K games are starting to eat 16-20GB alone, and if you have Chrome or Discord open? You'll hit that 32GB ceiling way sooner than you think. Lesson learned: After years of tinkering, I’ve realized that 1% lows and system stability matter way more than peak frequency. Just get a solid 64GB kit from G.Skill or Corsair and call it a day. peace!!

Good to know!

Saw this thread earlier and figured id weigh in since I've spent way too many nights trying to stabilize high-speed kits. The 8000MT/s stuff is fun for benchmarks but a total pain for a daily driver because of the silicon lottery. Your CPU's memory controller is the real bottleneck there, not the RAM itself. Heres what I usually check when planning a high-end build:

• The motherboard QVL (Qualified Vendor List) is your best friend. If the kit isnt on there, dont expect it to hit advertised speeds easily.
• Check out Buildzoid's YouTube channel (Actually Hardcore Overclocking) for his memory scaling breakdowns.
• Focus on the CAS latency and sub-timings rather than just the raw MT/s. Honestly, for a 5090 rig, 64GB is a smart move just so you never have to think about it again. Just watch out for 4-stick configurations tho... they're notoriously unstable at high speeds compared to just using 2 sticks. Let me know if you need help looking at specific timing sheets!

Gonna try this over the weekend. Will report back if it works!

Curious about one thing: what CPU are you actually planning to pair with that 5090?? Honestly Ive had sooo many stability issues with high-speed DDR5 lately... I tried a fast kit last month and it was unfortunately not as good as expected. Just a massive headache. Are you going Intel or AMD? Coz maybe 8000MT/s is literally a nightmare on some stuff... just wanna make sure you dont waste money!!

Saving this whole thread. So much good info here you guys are awesome.