Used 3090 or 3090 Ti?
On 9/13/2023 at 5:58 AM, igormp said:OP did mention some use cases that basically leave AMD out of the question tho
Is the 7900 XT - not good at AI?聽 I am reading that AMD was improving in that dept - but, then there's a bunch of topics (not here) - that it depends on ROCm - and that development is slow.聽 聽聽
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The 7900 XT and XTX - seems okay with Blender - if you use HIP-RT - but, there's very few benchmarks or reports of ppl providing their performance (scores).
It's okay in Davinci Resolve.聽 聽These are the 2 main programs I intend/will use.聽 聽So, a 3090 Ti - would be good for either - and in AI/ML too - which aren't the priority but I am interested in that field.聽 聽
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I like that the 7900 XT is A) newer/new gen; B) has AV1 (both encoding & decoding); C) has 20/24 GB (depending on XT/XTX); D) might be a better fit in Linux.聽 聽The problem with the cards in Linux though - is that HIP-RT doesn't work yet and the ROCm is not supported (officially) in Linux until ROCm ver. 6.0.聽 聽 When ppl talk about slow support for AMD graphics cards/software in general - it's even worse in the Linux world - despite the support being open source.
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Note:聽 I'd mostly use Windows (I'll dual boot) - but, I want to try the same programs in Linux (eventually).聽
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The other problem with going with a 7900 XT/XTX - is I'd need to save more $$ - which isn't necessarily bad - if I committed to an AMD card - it's just a matter of waiting - there might be some price discounts near Black Friday or in general - used cards might suddenly be available.聽 聽But, I'd be waiting for who knows how long - they're about $300+ than the used 3090 Ti cards I found - although, why they're still on the 'used' sites - 2 are on facebook marketplace - do ppl leave the ad up when it's sold?聽 聽I dunno.聽 聽Good prices, though.
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The 7900 XT or XTX - I'd probably buy new anyway - so $400 more - is that worth it?聽 聽
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A 3090 Ti power consumption looks pretty close to a 7900 XTX?聽 聽So, old gen, Nvidia - so CUDA/OptiX - 'better' for ML and AI - and 'better' for video editing (DR) and Blender - but, the RDNA 3 cards might be narrowing the gap (in performance) in the latter 2 programs/fields.聽聽
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