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A comment on An EPYC NixOS Build Farm. Parent comment

Re:An EPYC NixOS Build Farm by blattimwind on Saturday August 18, 2018 @03:02PM (#17790020)
> EPYC is compared to a previous generation Xeon with lower TDP ... Edit: actually, this is a dual Xeon machine so its TDP is slightly higher than EPYC's.

Comparing TDPs between manufacturers is invalid.

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Re:An EPYC NixOS Build Farm by kingbirdy on Saturday August 18, 2018 @03:29PM (#17790143)
> Comparing TDPs between manufacturers is invalid.

Why? It's all Watts

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Re:An EPYC NixOS Build Farm by blattimwind on Saturday August 18, 2018 @03:44PM (#17790233)
"TDP" is not a figure resulting from a standardized process. Each manufacturer has a different (and sometimes changing) definition of it. E.g. for Intel it is a supposed power consumption given a certain load at base clock. Meanwhile with AMD it basically encodes the standard thermal parameters (Tamb, Tj(max), Rthjc).
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