# GPU slower than CPU for simple benchmarks

**URL:** <https://discourse.julialang.org/t/gpu-slower-than-cpu-for-simple-benchmarks/119687>\
**Category:** GPU\
**Tags:** amdgpu\
**Created:** [September 22, 2024, 3:20am UTC](https://discourse.julialang.org/t/gpu-slower-than-cpu-for-simple-benchmarks/119687 "2024-09-22T03:20:34Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![ufechner7](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ufechner7/32/51363_2.png) [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Post date:** [September 22, 2024, 6:51am UTC](https://discourse.julialang.org/t/gpu-slower-than-cpu-for-simple-benchmarks/119687/3 "2024-09-22T06:51:38Z")

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> [@Oscar\_Smith](#):
>
> Consumer GPUs have very weak Float64 performance.

With two exceptions:  
AMD Radeon Pro VII: 6.5 TFLOPs (~400 EUR on ebay)  
AMD Radeon VII: 3.52 TFLOPs (~200 EUR on ebay)

Complete list: [Reddit - Dive into anything](https://www.reddit.com/r/CUDA/comments/lkhcbv/is_there_a_list_of_gpus_ranked_by_fp64/)

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