F5F Stay Refreshed Power Users Overclocking Single Core Boost query: 4790k

Single Core Boost query: 4790k

Single Core Boost query: 4790k

H
Hyper_B0Y
Member
215
07-05-2016, 09:37 PM
#1
The system runs at 4790k with Gigabyte z97mx Gaming 5 and Noctua DH15S. Five additional fans are installed, including an industrial top fan. It's currently stable at overclock settings around 4.8Ghz, with a Vcore of 1.286. I'm considering lowering the voltage slightly. All core states and hyperthreading are disabled. Some voltages have been adjusted for ring, vrin, memory, and uncore at 40. I plan to increase the first core to 50x by enabling turbo boost, setting all cores to 48, and using a single-threaded turbo at 50 while keeping wattage and amps unchanged. So far, no readings above 4.8Ghz have appeared. I'm wondering if I'm doing it incorrectly or if single-core performance is managed differently—maybe Windows handles background tasks constantly, making the change subtle?
H
Hyper_B0Y
07-05-2016, 09:37 PM #1

The system runs at 4790k with Gigabyte z97mx Gaming 5 and Noctua DH15S. Five additional fans are installed, including an industrial top fan. It's currently stable at overclock settings around 4.8Ghz, with a Vcore of 1.286. I'm considering lowering the voltage slightly. All core states and hyperthreading are disabled. Some voltages have been adjusted for ring, vrin, memory, and uncore at 40. I plan to increase the first core to 50x by enabling turbo boost, setting all cores to 48, and using a single-threaded turbo at 50 while keeping wattage and amps unchanged. So far, no readings above 4.8Ghz have appeared. I'm wondering if I'm doing it incorrectly or if single-core performance is managed differently—maybe Windows handles background tasks constantly, making the change subtle?

C
CxnquerBB
Junior Member
14
07-07-2016, 11:19 AM
#2
I don't have an answer for you, but I'm curious—why are you aiming for 5ghz? What led you to believe disabling hyperthreading would be beneficial? Sure, higher clocks can speed up tasks, but cutting off hyperthreading has really limited your 4790k's potential. What's the real goal behind what you're trying to achieve?
C
CxnquerBB
07-07-2016, 11:19 AM #2

I don't have an answer for you, but I'm curious—why are you aiming for 5ghz? What led you to believe disabling hyperthreading would be beneficial? Sure, higher clocks can speed up tasks, but cutting off hyperthreading has really limited your 4790k's potential. What's the real goal behind what you're trying to achieve?

T
tinodz
Member
218
07-09-2016, 11:16 AM
#3
I believe HT at 4.8G > 5GHz means no HT.
Single core enhancement is mainly for tasks that require heavy single-threaded performance. Typically, when most cores are idle but one core is very active, it boosts that core to improve speed since it lacks the combined power of others. A good comparison would be a dam with four gates: opening one wide doesn’t cause flooding, but opening all four at once would lead to a flood. This isn’t an exact analogy, especially in your situation where the boost is only slightly higher than your overall core frequency.
T
tinodz
07-09-2016, 11:16 AM #3

I believe HT at 4.8G > 5GHz means no HT.
Single core enhancement is mainly for tasks that require heavy single-threaded performance. Typically, when most cores are idle but one core is very active, it boosts that core to improve speed since it lacks the combined power of others. A good comparison would be a dam with four gates: opening one wide doesn’t cause flooding, but opening all four at once would lead to a flood. This isn’t an exact analogy, especially in your situation where the boost is only slightly higher than your overall core frequency.

U
Unmigrate
Senior Member
644
07-22-2016, 05:55 PM
#4
I'm using a device to test and attempt to reach 5 GHz.
U
Unmigrate
07-22-2016, 05:55 PM #4

I'm using a device to test and attempt to reach 5 GHz.

R
RaphaelRed2
Junior Member
29
07-23-2016, 01:45 PM
#5
Apologies, I should have been more specific.
I am trying to run flight simulators (il2 Sturmovik BoX, and also il2 CloD). They are both heavy on the single thread use
, monitoring shows about 50% usage on Core 1 and others half or less. It's evident I'm getting a bottleneck somewhere for a campaign mod I'm using, called PWCG. You can set various "densities" of other aircraft, vehicles on ground, all sorts of objects basically, and I'm trying to keep the map as populated as possible. Also the AI for all other planes takes some CPU power. There is an effect that users are experiencing to varying degrees - "slow motion". The game slows down even though fps counters are not, and it becomes impossible to run fast forward (speed up time mode for autopilot boring times). My system is doing fairly well compared to some, some get in in vanilla campaign mode and at low density. I'm trying to optimise as much as possible so I can run a realistic campaign experience with this mod, which allows much more "density" than vanilla. RAM may also be a bottleneck, but less likely, and I have tweaked it to the edge of what it can do and there is no upgrade worth buying for this setup. So, single core boost is all I have left to do.
There are also lots of stutter isses with the game, most of which I have smoothed out by turning off C states and lots of latency optimisation in Windows etc
That's also the reason I turned off hyper threading, for this game. It's a fix for stutters/micro stutters that are evident with it on.
There's a slight drop in FPS but it's a worthy sacrifice to kill the stutters. I'll be turning it on for pretty much any other use.
I intend to have more than one profile in the BIOS,
one for this game, one for most other games, and one for work. I have a hotswap setup with multiple installs.
I am using p95 and aida64 as my primary stress testers. I have also used a benchmark called Single Precision Julia within aida64,
I'm not entirely sure what it does, and I haven't googled it yet! but I assumed single core test. I have also run games and GPU benchmarking, with the turbo settings above, with one core on 50. None of them seem to output a peak in single core frequency with my setup as is. Also have used Novabench, though it's not really very detailed or intensive.
I'm using CPUID HWMonitor to look at stats,
I was using RealTemp but can see single core data now.
Will be more than happy for some other options to specifically bench single core use, and ideas to achieve what I'm hoping for. Thanks
edited some words - saw the percentage use of Core 1.
R
RaphaelRed2
07-23-2016, 01:45 PM #5

Apologies, I should have been more specific.
I am trying to run flight simulators (il2 Sturmovik BoX, and also il2 CloD). They are both heavy on the single thread use
, monitoring shows about 50% usage on Core 1 and others half or less. It's evident I'm getting a bottleneck somewhere for a campaign mod I'm using, called PWCG. You can set various "densities" of other aircraft, vehicles on ground, all sorts of objects basically, and I'm trying to keep the map as populated as possible. Also the AI for all other planes takes some CPU power. There is an effect that users are experiencing to varying degrees - "slow motion". The game slows down even though fps counters are not, and it becomes impossible to run fast forward (speed up time mode for autopilot boring times). My system is doing fairly well compared to some, some get in in vanilla campaign mode and at low density. I'm trying to optimise as much as possible so I can run a realistic campaign experience with this mod, which allows much more "density" than vanilla. RAM may also be a bottleneck, but less likely, and I have tweaked it to the edge of what it can do and there is no upgrade worth buying for this setup. So, single core boost is all I have left to do.
There are also lots of stutter isses with the game, most of which I have smoothed out by turning off C states and lots of latency optimisation in Windows etc
That's also the reason I turned off hyper threading, for this game. It's a fix for stutters/micro stutters that are evident with it on.
There's a slight drop in FPS but it's a worthy sacrifice to kill the stutters. I'll be turning it on for pretty much any other use.
I intend to have more than one profile in the BIOS,
one for this game, one for most other games, and one for work. I have a hotswap setup with multiple installs.
I am using p95 and aida64 as my primary stress testers. I have also used a benchmark called Single Precision Julia within aida64,
I'm not entirely sure what it does, and I haven't googled it yet! but I assumed single core test. I have also run games and GPU benchmarking, with the turbo settings above, with one core on 50. None of them seem to output a peak in single core frequency with my setup as is. Also have used Novabench, though it's not really very detailed or intensive.
I'm using CPUID HWMonitor to look at stats,
I was using RealTemp but can see single core data now.
Will be more than happy for some other options to specifically bench single core use, and ideas to achieve what I'm hoping for. Thanks
edited some words - saw the percentage use of Core 1.

S
SuperboyLama
Member
109
07-26-2016, 01:31 AM
#6
It seems I require certain C states activated for Turbo to function properly. I'll attempt it and let me know the outcome, thank you for the feedback.
S
SuperboyLama
07-26-2016, 01:31 AM #6

It seems I require certain C states activated for Turbo to function properly. I'll attempt it and let me know the outcome, thank you for the feedback.