Best RAM for 3D rendering and heavy Blender projects?

For your situation, capacity is actually way more important than speed. Honestly, if you're hitting swap during Cycles renders, your system stability is at serious risk. High clock speeds are nice, but they can lowkey cause instability in 24/7 rendering workloads.

Over the years, I've found that for heavy archviz, Kingston FURY Beast Black 128GB (4x32GB) 5600MT/s DDR5 CL40 is a beast for stability. If you're on a workstation build, maybe even look at Crucial 64GB Kit (2x32GB) DDR5-5600 UDIMM for a reliable, no-frills option. Basically, just prioritize that 128GB ceiling so Blender doesnt crash when those fluid sims get huge!!

Ok so, before I give advice, quick question—are you running an Intel or AMD build? Speed matters more on certain chipsets, but honestly, if you're on a budget, capacity wins every time.

I've been doing 3D for years and I've learned that hitting the swap file is a total productivity killer. Since you're doing heavy archviz and fluids, you're gonna want to prioritize stability over raw MHz. I would suggest checking out:

1. **High-Capacity Value**: G.Skill Ripjaws S5 Series 64GB (2 x 32GB) DDR5-5200 CL36 - This is basically the sweet spot for price-to-performance. It's not the fastest out there, but it's super stable for long Cycles renders.
2. **The 128GB Workhorse**: Kingston FURY Beast 128GB (4x32GB) 5600MHz DDR5 CL40 - If you can stretch the budget, this is the way to go for those 4K textures. Just be careful with 4-stick stability on some motherboards tho!!

I mean, high speeds look cool in benchmarks, but for actual production? You wont notice 6000MHz vs 5200MHz as much as you'll notice NOT crashing. Plus, cheaper kits let you buy more GBs for the same price. gl!

Oh man, I totally feel u on this! I've been doing 3D for years and basically learned the hard way that capacity is KING for Blender. High-poly meshes and fluid sims will eat your RAM for breakfast, honestly.

* Go for 64GB minimum, but 128GB is amazing for peace of mind
* Capacity > Speed (stability is sooo much more important than a few extra MHz)

I swapped my old 32GB kit for a massive 128GB setup recently and the difference in viewport lag is realy night and day. Idk, just dont sacrifice GBs for speed cuz Cycles doesn't care about clock speeds as much as having enough room to breathe!! 👍

Respectfully, I'd consider another option before you just max out capacity. I've been doing this for a decade and ngl, having 128GB of slow, unstable RAM is its own kind of nightmare for long renders. I've seen builds crawl because people bought cheap, high-capacity kits that didn't play nice with their motherboard's XMP/EXPO profiles. If you're on DDR5, I highkey recommend finding a middle ground with G.Skill Trident Z5 RGB 64GB (2x32GB) DDR5-6000 CL30. It gives you that 64GB sweet spot for archviz but keeps the timings tight so your viewport doesn't lag. If you REALLY need 128GB, look at Kingston FURY Renegade Pro DDR5 128GB (4x32GB) 5600MT/s RDIMM if you're on a workstation board, otherwise stick to 2 sticks for stability. TL;DR: 64GB of fast, reliable RAM is usually better for 90% of Blender projects than 128GB of unstable budget sticks.

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Solid advice 👍

Ok so, basically, the technical side of Blender is that it LOVES capacity way more than speed! When you're doing those heavy fluid sims and high-poly archviz, your computer stores all those mesh vertices and texture data in the RAM. Once you hit that 16GB limit, Windows starts using your slow SSD as "virtual memory," which is why your viewport is crawling... it's literally a bottleneck! Honestly, DDR5 speed (like 6000MHz) only gives a tiny boost in render times, but having enough space means you wont CRASH. Since you're on a budget, I'd suggest going for a 64GB kit instead of the super expensive 128GB ones. You can find the Crucial RAM 64GB Kit (2x32GB) DDR5 4800MHz CL40 for around $160 right now, which is such a steal for that much memory!! Or if you're still on DDR4, the Corsair Vengeance LPX 64GB (2x32GB) DDR4 3200MHz C16 is usually under $120. Focus on the GBs, not the MHz, and your workflow will feel sooo much smoother, ngl. gl!