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TPU VGA database incorrect stats


New Member
Nov 21, 2023
2 (0.02/day)
I wasn't sure where else to put this, but I wanted to inquire about incorrect stats being listed for some GPUs.

notably, the FP64 spec/ratio listed for Nvidia RTX A-series (A4000/A5000/etc) cards. the FP64:FP32 ratio is listed as "1:32" with seemingly no basis and in contrast to the official nvidia docs which show the Ampere GA10x (excluding GA100) architecture to be a 1:64 ratio with no special treatment of the RTX A-series cards. where did 1:32 come from? every other mention of this spec across the internet/reviews seems to come from you guys and as it looks to be incorrect, it should be corrected in your database.

independent testing by myself concludes that these cards have a 1:64 ratio just like all the other Ampere Geforce cards. (A4000 does ~300GFlops in pure FP64 benchmark/load)

used a benchmark called gpu-burn (here: https://github.com/wilicc/gpu-burn) ran this on several RTX A4000s and several RTX 3070Tis, which have the same GPU core counts, ran similar clockspeeds under the FP64 test (-d argument). both scored the same ~300GFlops for doubles (FP64).
Last edited:


New Member
Nov 21, 2023
2 (0.02/day)
No one here knows who to contact to correct this? I’ve emailed via the “report an error” button on the A4000 page but received no response.


Tech, Games, and TPU!
Mar 26, 2014
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T4C Fantasy

CPU & GPU DB Maintainer
Staff member
May 7, 2012
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fixed this issue :)