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post #1 of 12 (permalink) Old 06-25-2020, 12:42 PM - Thread Starter
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Ryzen 7 2700 OC Or Not?

I have heard that you shouldn't overclock the AMD Ryzen 7 2700 and that you should tweak PBO instead. Im wondering what should I go with? Right now I have a 4ghz all core overclock with PBO disabled. Im not to familiar with Ryzen so what do you guys think? Heres my hardware:

- AMD Ryzen 7 2700
- ASUS TUF X470-PLUS GAMING
- NZXT Kraken x52 AIO CPU Cooler
- 32GB (16gb x 2) HyperX Fury DDR4 2666 (OC'd to 3466)
- ASUS TUF X3 GTX 1660 Super 6GB
- 1TB WD Black SN750 NVME M.2 SSD
- XFX TS-550 PSU
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post #2 of 12 (permalink) Old 06-25-2020, 01:49 PM
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I keep mine at 4GHz.

When you game with it at stock, use an app to observe what clocks the cores are boosting to. I used HWINFO64 and i observed most of the time just 3.8GHz on the games i play. Since it can do 4GHz (even 4.1GHz) at similar or cooler temp than stock, i decided to oc.

I never look at the fps in games. I game at 1440 with a 5700XT.

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
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Hard Drive
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Power Supply
700
Case
212
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post #3 of 12 (permalink) Old 06-25-2020, 03:26 PM
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Just oc it, keep 1.35v as max voltage

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post #4 of 12 (permalink) Old 06-25-2020, 03:32 PM
Stock is too casual~
 
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1.325v as max allcore and 1.48v as max boosting voltage on 2nd gen
Use PBO and adjust PPT, TDC, EDC if you want to save power without loosing boosting performance
but do limit PPT, TDC,EDC to something - else it will boost into oblivion near 4.35Ghz @socal081
EDIT:
Lower vSOC near 1.02-1.05v if you want to save heat
shouldn't need over 1.05v for anything under 3600MT/s,
soo you might even go away with 1.0v vSOC near 2667MT/s memory frequency

SiSandra Inter-Core Bandwith 14nm Ryzen global #1 | Twitter
Personal Records
RAM > Viper Steel @ 3466C14 (64.2ns) & Alt | Hynix-MFR 3333CL14 (72.5ns) & Alt

GPU > Gigabyte 970 G1 @ 1595|1900 (Hynix) | RX 580 Red Devil GS @ 1620|2200 (Micron)
CPU > TR 1950X [email protected]1.2v & [email protected]1.365v[105Mhz FSB](3.23Beta)
#Main: 1700X [email protected]1.365v1.73Ghz IMC CL14 (64.2ns)」+ Dark Rock 3 | X370 Taichi 1.0.0.3 ABBA by The Stilt | Viper Steel [PVS416G400C9K]| Gigabyte 970 G1 | Samsung 850 Evo
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post #5 of 12 (permalink) Old 06-25-2020, 04:44 PM
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I don't think the 2700 non x lets you tweak pbo settings. I would overclock it to whatever frequency 1.3v lets you get.
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post #6 of 12 (permalink) Old 06-25-2020, 09:11 PM
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Quote: Originally Posted by 2600ryzen View Post
I don't think the 2700 non x lets you tweak pbo settings. I would overclock it to whatever frequency 1.3v lets you get.
on 1st gen only the X series had XFR support
The whole 2nd gen does support PBO and P-States

"Precision Boost 2 & XFR2"
^ override will work on the first one, while XFR support just are the power-states which are also changeable "on emergency"

TDC, EDC, PPT always work - as that's how XFR is build on
A fixed voltage is after 1st gen no good idea anymore
It's easier, but the loss is higher

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Personal Records
RAM > Viper Steel @ 3466C14 (64.2ns) & Alt | Hynix-MFR 3333CL14 (72.5ns) & Alt

GPU > Gigabyte 970 G1 @ 1595|1900 (Hynix) | RX 580 Red Devil GS @ 1620|2200 (Micron)
CPU > TR 1950X [email protected]1.2v & [email protected]1.365v[105Mhz FSB](3.23Beta)
#Main: 1700X [email protected]1.365v1.73Ghz IMC CL14 (64.2ns)」+ Dark Rock 3 | X370 Taichi 1.0.0.3 ABBA by The Stilt | Viper Steel [PVS416G400C9K]| Gigabyte 970 G1 | Samsung 850 Evo
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post #7 of 12 (permalink) Old 06-25-2020, 09:38 PM
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Yeah I could reduce PPT/TDC/EDC on my 2600 but I couldn't increase it over stock(88ppt/60A tdc/90A edc).
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post #8 of 12 (permalink) Old 06-26-2020, 01:33 AM
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Quote: Originally Posted by Veii View Post
1.325v as max allcore and 1.48v as max boosting voltage on 2nd gen
Use PBO and adjust PPT, TDC, EDC if you want to save power without loosing boosting performance
but do limit PPT, TDC,EDC to something - else it will boost into oblivion near 4.35Ghz @socal081
EDIT:
Lower vSOC near 1.02-1.05v if you want to save heat
shouldn't need over 1.05v for anything under 3600MT/s,
soo you might even go away with 1.0v vSOC near 2667MT/s memory frequency
Mh, my 2700x stays around 1.356 allcore by himself, 1.325 seems to low

Yeetus
(10 items)
Brother's heater
(10 items)
CPU
Ryzen 2700X (10x -0.8125 LLC1)
Motherboard
Crosshair VII Hero (WiFi)
GPU
Sapphire RX 5700XT Nitro+ SE
RAM
G.Skill 3466 C14
Hard Drive
Crucial P1
Hard Drive
Seagate Barracuda
Power Supply
XFX XTR P1-750B-BEFX
Cooling
NH-D15 AM4
Case
Dark Base 900 Pro
Operating System
Windows 10 Pro
CPU
Ryzen 2600X (10x -0.05 LLC1)
Motherboard
ROG STRIX X470-F GAMING
GPU
XFX RX480 GTR (580 BIOS) 1400/2010
RAM
Vengeance LPX 3466 c16
Hard Drive
Crucial P1
Hard Drive
Seagate Barracuda
Power Supply
ANTEC HCG-750-GOLD
Cooling
Corsair H100i
Case
NZXT H510i
Operating System
Windows 10 Pro
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post #9 of 12 (permalink) Old 06-26-2020, 01:57 AM
Stock is too casual~
 
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Quote: Originally Posted by DAM20 View Post
Mh, my 2700x stays around 1.356 allcore by himself, 1.325 seems to low
This has to be with PBO enabled ?
2nd gen has a FITness module inside
But the safe all core voltage is 1.325v under harsh SSE workloads
This doesn't include AVX2 vdroop

Normal users might be fine with 1.35v, but suggested all core constant current is 1.325v as maximum peak
A 2700X can operate at 1.27v @ 4.3 allcore SSE workloads
AVX2 would push that down to 1.18v
Need to dig around old pictures, but 1.3v is plenty *
1.32 is needed for leaky units to run 4.15 all core
Real voltage is then near 1.2975-1.3v for the allcore without vdroop
* will update the post later with the attached picture

SiSandra Inter-Core Bandwith 14nm Ryzen global #1 | Twitter
Personal Records
RAM > Viper Steel @ 3466C14 (64.2ns) & Alt | Hynix-MFR 3333CL14 (72.5ns) & Alt

GPU > Gigabyte 970 G1 @ 1595|1900 (Hynix) | RX 580 Red Devil GS @ 1620|2200 (Micron)
CPU > TR 1950X [email protected]1.2v & [email protected]1.365v[105Mhz FSB](3.23Beta)
#Main: 1700X [email protected]1.365v1.73Ghz IMC CL14 (64.2ns)」+ Dark Rock 3 | X370 Taichi 1.0.0.3 ABBA by The Stilt | Viper Steel [PVS416G400C9K]| Gigabyte 970 G1 | Samsung 850 Evo
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post #10 of 12 (permalink) Old 06-26-2020, 02:07 AM
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Quote: Originally Posted by Veii View Post
This has to be with PBO enabled ?
2nd gen has a FITness module inside
But the safe all core voltage is 1.325v under harsh SSE workloads
This doesn't include AVX2 vdroop

Normal users might be fine with 1.35v, but suggested all core constant current is 1.325v as maximum peak
A 2700X can operate at 1.27v @ 4.3 allcore SSE workloads
AVX2 would push that down to 1.18v
Need to dig around old pictures, but 1.3v is plenty *
1.32 is needed for leaky units to run 4.15 all core
Real voltage is then near 1.2975-1.3v for the allcore without vdroop
* will update the post later with the attached picture
You are talking about the R7 2700X. OP has a Non X like mine and our cpus normally need higher voltage at a given oc and may not oc as high as the X version. I use 1.35v to be stable at 4GHz. Like 2600ryzen said, PBO does not really pertain to the Non X Gen 1+.

The known 1.32v ideal limit for CPU Vcore is commonly used for GEN 2. I've had my 2700 Non X at 1.39v for 4.1GHz for most of its life ( 2yrs). Only recently that i reset to 4GHz cos my PSU is 10 yrs old Trying to lessen the strain.

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; 06-26-2020 at 02:11 AM.
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