Lower Cinebench Value when overclocking. Please help.

[nerroseu]

Currently my system is running stable with a slight overclock of 3.65GHz. I have the issue where I am obtaining slightly lower Cinebench R15 values past this overclock and I can’t seem to find the cause. I am unsure if my generic RAM may be the bottleneck as it is not a noteworthy type of overclocking RAM as Corsair Vengeance or GSkill Trident Z. The following below are my components: -
• CPU: Ryzen 7 1700X
• GPU: ASUS Strix GTX 1070 OC
• RAM: Single stick- 16GB 2400MHz DDR4 Patriot PSD416G24002 Timings: 17-17-17-39 & Voltage: 1.2V
• Motherboard: ASUS Prime X370 Pro
• Storage: 480GB Crucial BX300
• PSU: EVGA 750W Gold
• CPU Cooler: Coolermaster Hyper 612 Ver. 2
I overclocked my system using the ASUS motherboard tweaking software and the following are the changes I made to ensure a the overclock.
1) CPU Core Ratio = 36.5
2) VDDR CPU Voltage = 1.337V
3) VDDR SOC Voltage = 1.050V from 0.900V
4) DRAM Voltage = 1.2V to Auto
5) VDDR CPU Load Line Calibration = Level 1
6) VDDR CPU Current Capability = 110%
7) VDDR CPU Power Duty Control = T. Probe
8) VDDR CPU Power Phase Control = Optimized
9) VDDR SOC Power Phase Control = Extreme
10) Performance Core Boost = Disabled
11) Global C-State Control = Enabled
My Cinebench R15 score was 1582 for the CPU and CPU Single thread was 147. Using the bench system in CPU-Z ID, my single thread score was 407.9 and multi thread score was 4489.3. My case seems to have sufficient ventilation as after a 1 hour of Prime 95 temperatures are reading 65 degrees celsius. Now sending up my CPU Core Ratio = 37 (3.7GHz) and adjusting VDDR CPU Voltage = 1.345V whilst keeping everything the same; My Cinebench R15 score was 1531 while CPU-Z ID speaks differently with an increase of 421.4 for CPU Single thread and 4554.0 for CPU Multi thread. Any assistance as to what the problem might be would be greatly appreciated because I don’t want to damage anything on my system trying to go above the 3.65GHz.

 

[clutchc]

Is the OC causing the processor to throttle?

 

[nerroseu]

Is the OC causing the processor to throttle?

 

[nerroseu]

Is the OC causing the processor to throttle?

 

[nerroseu]

I haven't ran Prime 95 @ the 3.7GHz, just on Cinebench. When I saw the lower benchmark I scratched my head. There were temperature spikes but not up to 65 degrees.

 

[clutchc]

I haven't ran Prime 95 @ the 3.7GHz, just on Cinebench. When I saw the lower benchmark I scratched my head. There were temperature spikes but not up to 65 degrees.

But, is the processor throttling while running Cinebench? CB runs the CPU at 100% usage.

 

[nerroseu]

I'm not sure to be honest, what would I observe if the CPU is throttling while running Cinebench? And Yes the CPU is at 100% usage while running.

 

[clutchc]

I'm not sure to be honest, what would I observe if the CPU is throttling while running Cinebench? And Yes the CPU is at 100% usage while running.

The clock speed will drop off for one or more cores. For temp throttling, You can run something like Ryzen Master while CB is running and watch for clock speed drop offs.
I think HWinfo64 also indicates if power envelope throttling is present. Throttling happens when a core's temp get too high or the CPU exceeds the power envelope. The cpu logic lowers that multiplier to save the core.

 

[nerroseu]

I'm not sure to be honest, what would I observe if the CPU is throttling while running Cinebench? And Yes the CPU is at 100% usage while running.

The clock speed will drop off for one or more cores. For temp throttling, You can run something like Ryzen Master while CB is running and watch for clock speed drop offs.
I think HWinfo64 also indicates if power envelope throttling is present. Throttling happens when a core's temp get too high or the CPU exceeds the power envelope. The cpu logic lowers that multiplier to save the core.

 

[nerroseu]

Well I just ran Cinebench R15 again for the same 3.65GHz and monitored the temperatures on the Ryzen Master Software. When Cinebench started, the temperature jumped by almost 20 degrees celisus. Is that normal? Now I am beginning to question if temp throttling is the case. If it is so. What should I do?

 

[nerroseu]

Also cores didnt drop off during Cinebench.

 

[nerroseu]

I just ran Cinebench 3 times, 2 ran at 1580 ish and now the last one is 1494. But each test I ran I ensured that the temperature dropped back to 41 degrees Celsius first. Temperatures didn't fly past 65 degrees during the test so I'm not sure what is going on.

 

[clutchc]

If one or more pairs of cores do not lower their multiplier (and hence clockspeed), then you probably don't have a temp-related throttle issue. But It can still be power-envelope throttling. Try lowering the OC a multiplier-click at a time and see if the CB results increase to same or better than stock clocks.

 

[nerroseu]

If one or more pairs of cores do not lower their multiplier (and hence clockspeed), then you probably don't have a temp-related throttle issue. But It can still be power-envelope throttling. Try lowering the OC a multiplier-click at a time and see if the CB results increase to same or better than stock clocks.

 

[nerroseu]

If one or more pairs of cores do not lower their multiplier (and hence clockspeed), then you probably don't have a temp-related throttle issue. But It can still be power-envelope throttling. Try lowering the OC a multiplier-click at a time and see if the CB results increase to same or better than stock clocks.

 

[nerroseu]

I will try increasing from stock clocks at 50MHz intervals and running CB and share my results later. But what can cause a power-envelope throttling?

 

[clutchc]

I will try increasing from stock clocks at 50MHz intervals and running CB and share my results later. But what can cause a power-envelope throttling?

If the CPU demands more power (watts) than the VRM can deliver w/o overheating or some other issue.

 

[nerroseu]

I will try increasing from stock clocks at 50MHz intervals and running CB and share my results later. But what can cause a power-envelope throttling?

If the CPU demands more power (watts) than the VRM can deliver w/o overheating or some other issue.

 

[nerroseu]

I increased my CPU clock speeds at 50MHz intervals and the following Cinebench R15 results are as follows: -
3.6GHz = 1563cb
3.65Ghz = 1582cb
3.7GHz = 1605cb
3.75GHz = 1618cb
3.8GHz = 1626cb
I adjusted my VDDR CPU Voltage to 1.341V and the VDDR CPU Power Phase Control to Extreme. I ran Cinebench an average of 3 times and obtained these results. I used Ryzen Master software to monitor the temperatures and during the tests, the temperatures spiked from 42 degrees all the way up to 68 degrees, don’t know if that means it is throttling. I didn’t ran Prime 95 for speeds above 3.65GHz to check for stability. I’m not sure what is going on but I was hoping that a 3.8GHz clock speed would have given me a Cinebench value at least over 1650.The numbers seems to drop in difference as I OC higher.

 

[nerroseu]

I will try increasing from stock clocks at 50MHz intervals and running CB and share my results later. But what can cause a power-envelope throttling?

If the CPU demands more power (watts) than the VRM can deliver w/o overheating or some other issue.

 

[nerroseu]

I reran cinebench R15 @3.8GHz and the value jumped to 1645cb but it still seems low. Any suggestions as to what I should monitor again or adjust? Is there any possibility that this can be due to a faulty power supply.

 

[clutchc]

Yes, almost any power-related issue could be related to the PSU. But I would expect that Evga unit you have to be a top tier unit and problem free.

 

[Finstar]

I reran cinebench R15 @3.8GHz and the value jumped to 1645cb but it still seems low. Any suggestions as to what I should monitor again or adjust? Is there any possibility that this can be due to a faulty power supply.

Your 1700x is giving 100% normal results. it's your slow single channel ram that's lowering the score.

 

[Finstar]

Just tested it, My Ryzen 7 1700 is ocd to 3.9GHz.
With the ram running at 3000MHz i get a cb score of 1740
With the ram running at 2400MHz i get a cb score of 1705

Considering your ram is running in single channel mode you'd likely get even lower results at 3.9GHz due to lower bandwidth.