26/02/2026 3:55 pm
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I'm starting a big 8K documentary project, but my current rig is struggling with the raw footage. I'm looking at the RTX 4090 for that 24GB VRAM, but I'm unsure if DaVinci Resolve handles dual-GPU setups better. I need real-time playback without proxies. Which GPU is actually the best for professional 8K editing?
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26/02/2026 4:20 pm
I saved a ton switching to the AMD Radeon RX 7900 XTX 24GB GDDR6 for 8K. Tip: get a Samsung 990 Pro 2TB NVMe SSD cuz slow drives will bottleneck any GPU.
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26/02/2026 3:55 pm
Honestly, for 8K raw, the NVIDIA GeForce RTX 4090 24GB GDDR6X is basically the gold standard right now. I've used dual setups before, but the 4090 single-card performance in Resolve is just smoother and has less driver headaches. That 24GB of VRAM is absolutely mandatory for 8K timelines anyway. Just make sure your CPU can keep up with the data rate tho.
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26/02/2026 5:30 pm
Great info, saved!
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26/02/2026 4:20 pm
Hey, jumping in a bit late here but I wanted to share what I went through recently. I am still kinda new to the high-end side of things, but I learned pretty fast that brute force isnt everything. When I first started with heavy timelines, I thought just throwing the most expensive card at the problem would fix it, but I had so many stability issues at first with crashes and overheating. I eventually settled on the NVIDIA GeForce RTX 4090 Founders Edition 24GB GDDR6X because it felt like the safest bet for Resolve. However, if you are really worried about crashes during those long 8K renders and have the budget, some of the pros I talked to suggested the NVIDIA RTX 6000 Ada Generation 48GB GDDR6. Its definitely a massive investment, probably around 7000 dollars, but that 48GB of VRAM is basically a safety net for professional work where you cant afford a single error. One thing I wish someone told me earlier: dont skimp on the power supply. I ended up getting the Corsair AX1600i 1600W 80 Plus Titanium just so I never had to worry about power spikes during heavy processing. Honestly, for 8K, I would stick to a single powerful card rather than dual-GPUs. From what I have seen, dual setups just create more heat and potential driver conflicts, which is the last thing you want. Better to play it safe with one massive card imo.
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26/02/2026 4:40 pm
Honestly, if you want that 24GB VRAM without the massive price tag, look for a used NVIDIA GeForce RTX 3090 24GB GDDR6X. It hits the sweet spot for 8K Resolve work. Single card is usually more stable than dual anyway. The 4090 is top-tier, but a used 3090 is a beast for way less money. Just make sure you have a beefy PSU.
