My poor 3900x experience upgrading from i7-4790k - Page 5 - Overclock.net - An Overclocking Community

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My poor 3900x experience upgrading from i7-4790k

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post #41 of 47 (permalink) Old 08-06-2019, 02:31 AM
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Quote: Originally Posted by thegr8anand View Post
This is a copy-paste from my reddit post. I hope to fix my 3900x with its poor perfromance by going back to AGESA 1.0.0.2. I'm using Asus C7H with 1.0.0.3AB bios (2602) and ram oc'ed: https://i.ibb.co/9vLfrvb/3733best.jpg


[COLOR=#1A1A1B]


https://www.reddit.com/r/Amd/comments/cm21yb/going_from_4790k_to_3900x_my_benchmarks/

I doubt that running your memory at 3733mhz is a good idea at all since most Ryzen 3000 series cpus infinity fabric has a difficult time running efficiently above 1800mhz. Mine has this problem and so do do MANY others. My performance scores all drop when I raise memory clock above 3600nhz and infinity fabric above 1800mhz. Perhaps a new bios may be kinder on this score, but personally, I doubt it. I believe it is a limitation of the IMC in the memory controller and the fabric itself. Why don't you conduct this experiment at 3600mhz??? Another possibility is that your memory does not perform well at 3733 mhz. I can't determine your memory specs from your posting.

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post #42 of 47 (permalink) Old 08-06-2019, 03:08 AM
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All these pppl.. talking like they know. No clock speed consideration in place. RIP logic.

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post #43 of 47 (permalink) Old 08-06-2019, 02:04 PM
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Quote: Originally Posted by UltraMega View Post
Coming, but not here yet. Ryzen will likely shine more once new consoles are out but not before then.



This is completely false. After 8 threads there is virtually no gain.

"Single core is plenty for games... dual core is more than enough, quad core is all you need why spend on the i7 for the extrea threads?" Same tune different year. The fact that a game is using 8 threads properly is huge compared to where we were. Now I don't know about you, but games aren't the only thing I use my pc for and I'm not one to shut down every other process on my system to improve the experience. New consoles are not out yet - with 8c16t being the 'standard' now I don't know how you can be so shortsighted.

Also, the bench you posted doesn't actually show a usage chart - only shows that a 12t cpu is performing better than a 6c6t and 4c8t cpu. 8 actual cores may boost those numbers much higher.

Quote: Originally Posted by UltraMega View Post
Look at the clock speed differences and you will see where this disparity is coming from. OP is comparing a solid 4790K OC to a new Ryzen CPU. I'm sorry but a 4.6ghz+ 4790k is just going to keep up nicely with anything you can throw at it, if paired with some high quality DDR3 ram.

But again, it looks like the OP is yet to respond to advise on lowering his ram speed a little as too high of a ram speed will throw off Ryzen's turbo boost abilities, as reported by Guru3D in their review.
Yea... no. My 4790k @ 4.6ghz and paired w/ 16gb C10 DDR3 2400 is not going to make up the huge deficit in games like BFV when a 7700k is 30fps behind on minimum frames vs a Ryzen 3700x.
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post #44 of 47 (permalink) Old 08-06-2019, 11:10 PM - Thread Starter
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At 1080p maybe 3900x would have done better but my use case is 1440p 165hz and there its more gpu bound and didn't make a difference. I doubt someone buying a 3900x/9900K is going to play at 1080p anymore.

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post #45 of 47 (permalink) Old 08-07-2019, 06:57 AM
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Quote: Originally Posted by UltraMega View Post
Coming, but not here yet. Ryzen will likely shine more once new consoles are out but not before then.



This is completely false. After 8 threads there is virtually no gain.

Totally agree.

The only thing I would say about that is that the 6-8 thread performance peak is down to how the last 7 years the consoles have run processors with that.

The future consoles are all running 16 threads, on these Ryzens in particular.

Therefore, if you plan to purchase a CPU for the post 2020 future of gaming, you are likely to get great performance from higher thread counts in gaming because that is what the devs are coding for.

Pretty sure we should all bare that in mind when picking up a new CPU, which honestly should last you 6 years unlike GPU's. So planning for these things is important.
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post #46 of 47 (permalink) Old 08-07-2019, 02:10 PM
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Quote: Originally Posted by Blightor View Post
Pretty sure we should all bare that in mind when picking up a new CPU, which honestly should last you 6 years unlike GPU's. So planning for these things is important.
Which is why my circa 2013 Haswell i7 will take me into 2020 (at 60hz, at least) without an issue vs the i5's. Meanwhile on gpu's I went from 7970 to 290x to Vega64 in that same time frame (and still need more gpu horsepower).


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post #47 of 47 (permalink) Old 08-07-2019, 02:23 PM
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Quote: Originally Posted by UltraMega View Post
You guys are literally finding like the three games that show a big difference with more threads and drawing false conclusions from it. Far Cry 5, BF5, and one or two other games do show a 30 or so FPS difference with a very strong GPU. With anything less than a 2080 ti, that difference will shrink. With any other titles, the difference will shrink.

There are probably no more than 5 games out right now that anyone can show a real difference in performance in with more than 8 threads and in all of those cases, 8 threads is still very strong performance wise. Ryzen 3rd gen is likely the PS5 CPU and until PS5 style games come out, done expect to see big gains on ryzen.
this, and why I'm not upgrading anything until post console release releases, & at that point I'll likely be going team AMD for the first time in 15 years as they'll sell me 40+ lanes for way less than intel will.
oh, i will be adding the CRG9 monitor by the end of the year though. That's a perfect balance of resolution and frame rate... least, as an ex-eyefinity/surround gamer.

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