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by MobiusHorizons
1704 days ago
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Does anyone have any data on benchmarks for the Risc-V cores? I wasn't able to find any. I'm specifically interested in the C906 (aka Allwinner D1 which exists as a dev board[0] for ~$120 ) and the C910 which is apparently multicore. I'd love to know how they compare to SiFive's offerings and similar class arm chips. [0]: https://www.aliexpress.com/item/1005002856721588.html |
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https://www.anandtech.com/show/15991/hot-chips-2020-live-blo...
I should have one of the eval boards in mid November and I'll be able to do real-word tests then.
The C906 is a little bit faster than a Raspberry Pi Zero, except it has a fairly useful vector unit which can double or triple the speed of many things.
I published memcpy and strcpy benchmarks on Nezha six months ago:
https://hoult.org/d1_memcpy.txt https://hoult.org/d1_strcpy.txt
I also have results for it in my primes benchmark. It beats out a U54 at the same clock speed and is not far off the higher clocked A53 in a Pi 3.
https://hoult.org/primes.txt
The current "Nezha" board at $99 is obviously expensive compared to a Pi Zero. SiPeed are promising a board with with same D1 SoC with 512 MB RAM for under $20 within the next month.
https://twitter.com/SipeedIO/status/1443486484112183298
The C906 is very comparable to SiFive U54 (as in the HiFive Unleashed, and the Microsemi "Icicle" FPGA) except it has a vector unit and a much better DRAM interface than the FU540 had. But the D1 is only single core.
The C910 is comparable to the SiFive U84, which has not yet been seen in public in actual silicon.