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Comment by tomega2134

11 hours ago

Is a 5090 still cost efficent when it is (currently) unobtainable? Or when obtainable only at current prices (min. $6500 USD)?

Personally I think the price is way too high right now. It’s a power hungry gaming GPU. The efficient single card equivalent would be a 4500 Blackwell which launched at about $3500. Or you could get a 9700 32GB or an Arc B70 for well under $2k, today. You only buy a 5090 if you want absolute speed.

32GB is still not that much. I would rather get a Spark and have the RAM to experiment with larger LLMs, even if it was slow.

  • A 5090 has 2x tensor cores and 2x bandwidth and can be run at 400W (2x watts).

    • Being fast and having a power target doesn’t mean it’s cost efficient though. I would pay the launch cost for one, but not 3-4x inflated.