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Helpful ReplyDon’t hate me - Raptor Lake AVX clock bug/feature/thing

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TheAffxct
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2023/01/12 19:09:13 (permalink)
You’re all probably sick of me posting about this because no one seems to care. I just kinda need to get an idea if this is ever going to be addressed or not.

Basically AVX ratio doesn’t do anything and your CPU will be limited to whatever the SKU limit is (i7K - 5.3; i9K - 5.5; i9KS - 5.6). In Linpack/LinX/Y-Cruncher you can observe this as the chip switching between high clock during SSE loads to the min SKU clock once you hit heavy AVX, or just by simply comparing R23/OCCT SSE to OCCT AVX/AVX2.

If this is never going to be addressed then so be it. Our SSE max OC will basically always be a clock step too high for heavy AVX anyway, but the system just feels a bit broken as it is. I’d almost rather be setting the AVX ratio myself in BIOS just so I know it’s my doing and not some random feature of the board.

Before anyone asks, yes I’ve adjusted everything in the CPU menu, tested guardband, and messed with different Vdroop settings etc etc etc. This just is a thing. It’s very similar to if you guys recall when the 12900K couldn’t do over 5.1G in heavy AVX because of the KS existing and Intel locking it down.
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EVGA_Lee
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Re: Don’t hate me - Raptor Lake AVX clock bug/feature/thing 2023/01/13 09:44:06 (permalink) ☄ Helpfulby TheAffxct 2023/01/13 12:55:42
I'll have our team look into it.
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EVGA_Lee
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Re: Don’t hate me - Raptor Lake AVX clock bug/feature/thing 2023/01/16 17:44:03 (permalink)
So, our team tested with a Z690 DARK.  The AVX works normally when using y-cruncher, but Cinebench R23 doesn't run the AVX ratio.  We tested R23 with a competitor board, and it has the same behavior.
 
Can you check to see if you're running the same settings as our BIOS team?  Your BIOS screenshots and OS screenshots would also be appreciated:
 



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Mr. Fox
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Re: Don’t hate me - Raptor Lake AVX clock bug/feature/thing 2023/01/16 20:07:56 (permalink)
TheAffxct
You’re all probably sick of me posting about this because no one seems to care. I just kinda need to get an idea if this is ever going to be addressed or not.

You're more than likely referring to EVGA (my assumption). I've never said anything or tried to corroborate your comments because I don't have a CPU installed it has AVX. Both are 13th Gen. And, I have always runs an AVX offset of zero even when I did have. It sucks that Intel abandoned this, but it sucks less than running a Ryzen setup.

Wraith // EVGA Z690 Dark K|NGP|N | 13900K | MSI 4090 Suprim X | 32GB DDR5 | EVGA SuperNOVA 1600 P2 | HC-500A Chiller | MO-RA3 360 D5*3 || EVGA DG-86
Banshee // ASUS Z690 Apex | 13900KF | ASROCK 6900 XT OC Formula | 32GB DDR5 | Corsair RM1200x SHIFT | XT45 1080 Nova D5*2 || Corsair 5000D Airflow
Half-Breed // Precision 17 7720 | 7920HQ (BGA filth) | Quadro P5000 16GB (MXM) | 32GB DDR4 || Grade A Off-Lease Refurb

 
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