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Interesting to see that an RTX 3080 is faster than a dual RTX 2080, and more than twice as fast a single RTX 2080, which is consistent with one of NVIDIA's clai
by SloopJon 6y ago
Interesting to see that an RTX 3080 is faster than a dual RTX 2080, and more than twice as fast a single RTX 2080, which is consistent with one of NVIDIA's claims.
- formerly_proven 6y agoRTX 2080 - 10 TFLOPS, 448 GB/s RTX 3080 - ~30 TFLOPS, 760 GB/s So for most things compute you'd expect anywhere from 70 % to 200 % performance increase. Note the significant increase in operational intensity in this generation, to about 160 FLOps per Float Load/Store (up from ~90). The fact that we're not seeing 200 % increase more widely can point at things like this being a problem for existing applications (so RTX 3080 is _even more_ memory constrained as previous cards [1]), and perhaps also some applications struggling feeding enough work items / scheduling issues in general. [1] Alternative view: Even more operations you can do for free when you have to process a given buffer anyway!
- nothis 6y ago>~30 TFLOPS Jesus.
- jjoonathan 6y agoThe VRAM bandwidth is still under a terabyte per second so you still need a fair bit of data intensity to actually approach that. It's still amazing. I think I know what Jesus In A Leather Jacket has planned for next year though.
- Erwin 6y agoThe November 2001 top500 supercomputer had 7.2 TFL0PS: https://www.top500.org/lists/top500/2001/11/ https://www.top500.org/lists/top500/2001/11/ It's fun to compare it with the historical top500 list: https://www.top500.org/statistics/perfdevel/ https://www.top500.org/statistics/perfdevel/
- eslaught 6y agoI wonder how much that machine cost...
- bufferoverflow 6y agoAlso 3080 is much cheaper than 2080 was at its launch.
- eMSF 6y agoSame or similar price as 2080, cheaper than 2080 Ti.