R5 3600 + 3200 CL 14 b-die, latency seems high, did i miss something? - Overclock.net - An Overclocking Community
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R5 3600 + 3200 CL 14 b-die, latency seems high, did i miss something?

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post #1 of 20 (permalink) Old 05-30-2020, 12:17 AM - Thread Starter
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R5 3600 + 3200 CL 14 b-die, latency seems high, did i miss something?

Hi guys,

Just buy r5 3600, im using default stock boost, manual ram timings in bios, according to ryzen dram calculator, v1 profile, safe preset.

Ive find ive got higher latency than on my previous 2600, that was really unexecpted, did i miss something?

Also write speed seems low, and i was 68ns with 2600, here 73ns ....

something is wrong right?

Thx
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post #2 of 20 (permalink) Old 05-30-2020, 12:45 AM
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Those readings are normal the way Gen 2 is designed. Gen 2 at 3800 MHz RAM OC will match Gen 1+ at 3466 MHz both tweaked primary and secondary settings in latency measured using Aida. But the former will still be faster even if ram is set to optimized default (normally 2400MHz).

By Built-in Benchmark Queen:
My 2.5 years old delidded 7980xe @ 4600mhz all core with 49ns memorylatency (4000c16 twekaed) is faster than 3950x max overclocked on water in every scenario. Pretty good for a ancient cpu
In gaming it has no chance vs my new 10900k @ 5400mhz and 4600c16 tweaked memory. ~35ns memorylatency.
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post #3 of 20 (permalink) Old 05-30-2020, 01:00 AM - Thread Starter
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@rdr09 Nice to see you again, im the guy who struggle to make my bdie run at 3200 on my old 2600, so finnally i moved to 3600 yesterday
i will try 3600mhz now, are you familiar with ryzen 3000 cpus? do you think its worth to use PBO with 280mm AIO, im getting 75° in bench, seems temp raise whatever cooler you have, hmm 7nm ...
just wonder now if i should only use stock boost or PBO + stock boost

-R5 2600 4ghz 1.312v - 1080ti Gigabyte Aorus - FlareX 3200CL14 B-die 66ns - Asus Prime X370 Pro -
Cpu cooling : Coolermaster AIO Nepton 280L + corsair fan
gpu cooling : Corsair AIO H80i V2
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post #4 of 20 (permalink) Old 05-30-2020, 01:02 AM
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Quote: Originally Posted by Bapt33 View Post
@rdr09 Nice to see you again, im the guy who struggle to make my bdie run at 3200 on my old 2600, so finnally i moved to 3600 yesterday
i will try 3600mhz now, are you familiar with ryzen 3000 cpus? do you think its worth to use PBO with 280mm AIO, im getting 75° in bench, seems temp raise whatever cooler you have, hmm 7nm ...
just wonder now if i should only use stock boost or PBO + stock boost
Oh yah. Wait, before you do anything with your system follow this thread.

https://www.overclock.net/forum/10-a...arch-20-a.html

Your 3600 may have an issue. But a good issue.

By Built-in Benchmark Queen:
My 2.5 years old delidded 7980xe @ 4600mhz all core with 49ns memorylatency (4000c16 twekaed) is faster than 3950x max overclocked on water in every scenario. Pretty good for a ancient cpu
In gaming it has no chance vs my new 10900k @ 5400mhz and 4600c16 tweaked memory. ~35ns memorylatency.
2nd AMD Build
(10 items)
CPU
2700
Motherboard
470
GPU
5700
RAM
3466/14
Hard Drive
1000
Power Supply
700
Case
212
Operating System
10/64
Monitor
55/2160
Keyboard
M100
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post #5 of 20 (permalink) Old 05-30-2020, 01:09 AM - Thread Starter
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Quote: Originally Posted by rdr09 View Post
Oh yah. Wait, before you do anything with your system follow this thread.

https://www.overclock.net/forum/10-a...arch-20-a.html

Your 3600 may have an issue. But a good issue.
@rdr09 , damn that score ... im getting 3657 in cinebench r20 multi thread.

Never tried manual OC yet, boost seems work better as ive read.

not sure to understand what issue you talk about? even if its good issue

-R5 2600 4ghz 1.312v - 1080ti Gigabyte Aorus - FlareX 3200CL14 B-die 66ns - Asus Prime X370 Pro -
Cpu cooling : Coolermaster AIO Nepton 280L + corsair fan
gpu cooling : Corsair AIO H80i V2
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post #6 of 20 (permalink) Old 05-30-2020, 01:11 AM
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Quote: Originally Posted by Bapt33 View Post
@rdr09 , damn that score ... im getting 3657 in cinebench r20 multi thread.

Never tried manual OC yet, boost seems work better as ive read.

not sure to understand what issue you talk about? even if its good issue
Read the last few pages of that thread. You may need to undervolt if your 3600 happens to be like theirs.

The issue high temp at stock.

By Built-in Benchmark Queen:
My 2.5 years old delidded 7980xe @ 4600mhz all core with 49ns memorylatency (4000c16 twekaed) is faster than 3950x max overclocked on water in every scenario. Pretty good for a ancient cpu
In gaming it has no chance vs my new 10900k @ 5400mhz and 4600c16 tweaked memory. ~35ns memorylatency.
2nd AMD Build
(10 items)
CPU
2700
Motherboard
470
GPU
5700
RAM
3466/14
Hard Drive
1000
Power Supply
700
Case
212
Operating System
10/64
Monitor
55/2160
Keyboard
M100
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post #7 of 20 (permalink) Old 05-30-2020, 01:14 AM - Thread Starter
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Quote: Originally Posted by rdr09 View Post
Read the last few pages of that thread. You may need to undervolt if your 3600 happens to be like theirs.

The issue high temp at stock.
Oh yes ive heard of that, many people say undervolt on 3600 always result in less performance, but afterall, i will give a try and compare cinebench score.
Thanks for this !

-R5 2600 4ghz 1.312v - 1080ti Gigabyte Aorus - FlareX 3200CL14 B-die 66ns - Asus Prime X370 Pro -
Cpu cooling : Coolermaster AIO Nepton 280L + corsair fan
gpu cooling : Corsair AIO H80i V2
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post #8 of 20 (permalink) Old 05-30-2020, 04:02 AM - Thread Starter
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@rdr09 ive tried negative offset -0.012v and it result in lower score in cinebench R20. ive look on google and it seems reduce the PPT (power limit) work better than negative offset, but since temps are fine even with auto vcore, i dont think undervolt or reduce PPT could help, ive find just PBO on enabled give me a little better scoe on cinebench, cpu power go up to 94W on prime95 small fft, 78°.
What ive find is temp seems stay the same in heavy load, whatever my AIO fan run at 1000rpm or 1700rpm, strange behaviour, i think its because 7nm, it just struggle to dissipate heat to the IHS cause 7nm is just so light

-R5 2600 4ghz 1.312v - 1080ti Gigabyte Aorus - FlareX 3200CL14 B-die 66ns - Asus Prime X370 Pro -
Cpu cooling : Coolermaster AIO Nepton 280L + corsair fan
gpu cooling : Corsair AIO H80i V2
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post #9 of 20 (permalink) Old 05-30-2020, 04:06 AM
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Quote: Originally Posted by Bapt33 View Post
@rdr09 ive tried negative offset -0.012v and it result in lower score in cinebench R20. ive look on google and it seems reduce the PPT (power limit) work better than negative offset, but since temps are fine even with auto vcore, i dont think undervolt or reduce PPT could help, ive find just PBO on enabled give me a little better scoe on cinebench, cpu power go up to 94W on prime95 small fft, 78°.
What ive find is temp seems stay the same in heavy load, whatever my AIO fan run at 1000rpm or 1700rpm, strange behaviour, i think its because 7nm, it just struggle to dissipate heat to the IHS cause 7nm is just so light
If it is anything like the newer batches that oc well, you might be able to do a all core for like 4.2GHz at 1.2v. My older 3600 needs 1.33v for 4.2GHz. Yours might do it lower.

You might be better off setting an all-core oc, than playing with EDC or PBO, which others are doing successfully.

I think highest undervolt i did was -0.03. This kept the vcore from going over 1.43v compared to stock that goes all the way to 1.47v making the fan ramp up and down. Anything higher will affect performance. Currently, i just use 4.1GHz all core which is a perefect match to my stock RX 5700.

I don't think PBO does anything with this chips anyway. At stock one or two core jump to 4.2GHz. All-core goes down to 3.8GHz like in Cinebench MT test.

By Built-in Benchmark Queen:
My 2.5 years old delidded 7980xe @ 4600mhz all core with 49ns memorylatency (4000c16 twekaed) is faster than 3950x max overclocked on water in every scenario. Pretty good for a ancient cpu
In gaming it has no chance vs my new 10900k @ 5400mhz and 4600c16 tweaked memory. ~35ns memorylatency.
2nd AMD Build
(10 items)
CPU
2700
Motherboard
470
GPU
5700
RAM
3466/14
Hard Drive
1000
Power Supply
700
Case
212
Operating System
10/64
Monitor
55/2160
Keyboard
M100
▲ hide details ▲

Last edited by rdr09; 05-30-2020 at 04:12 AM.
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post #10 of 20 (permalink) Old 05-30-2020, 04:14 AM - Thread Starter
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Quote: Originally Posted by rdr09 View Post
If it is anything like the newer batches that oc well, you might be able to do a all core for like 4.2GHz at 1.2v. My older 3600 needs 1.33v for 4.2GHz. Yours might do it lower.

You might be better off setting an all-core oc, than playing with EDC or PBO, which others are doing successfully.

I think highest undervolt i did was -0.03. This kept the vcore from going over 1.43v compared to stock that goes all the way to 1.47v making the fan ramp up and down. Anything higher will affect performance. Currently, i just use 4.1GHz all core which is a perefect match to my stock RX 5700.

I don't think PBO does anything with this chips anyway. At stock one or two core jump to 4.2GHz. All-core goes down to 3.8GHz like in Cinebench MT test.
@rdr09 really? ive always read stock boost is always better than manual OC , for gaming i mean.
So you think i get better performance for gaming usage by manual oc all core instead use core boost / PBO?

EDIT : source : https://www.reddit.com/r/Amd/comment..._5_3600_non_x/

-R5 2600 4ghz 1.312v - 1080ti Gigabyte Aorus - FlareX 3200CL14 B-die 66ns - Asus Prime X370 Pro -
Cpu cooling : Coolermaster AIO Nepton 280L + corsair fan
gpu cooling : Corsair AIO H80i V2
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