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- Forums
- Hardware
- Graphics Cards
GPU-Z VRel, VOp
- Thread starter D1craig
- Start date 1 Jan 2015
- 1 Jan 2015
- #1
D1craig
D1craig
well i have come to using GPU-Z to see what is happening when i have fps drops and stuff.
seems the only thing i can see is VRel and VOp in the perfcap reason.
what are the reasons for this? could it be my PSU isnt sufficient enough? it is CORSAIR 650W ENTHUSIAST SERIES™ TX650 V2-80 PLUS® BRONZE.
this happens with no overclock. it also happens when i turn all the power settings up ie. mV and power limit.
Tbh its not causing me any problems i would just like to know.
- 2 Jan 2015
- #2
DarkBahamut
DarkBahamut
They are normal states for the GPU.
VRel = Card in maximum boost state as limited by current voltage
VOp = Card in maximum boost state as limited by maximum permitted voltage (card running at maximum overvolt)
You can also get:
Thrm = Card limited by temperature (Target temp exceeded)
pwr = Card limited by power consumption (TDP exceeded)
Util = Card not in maximum boost state due to low GPU load.
The top two states are normal. In any reasonably demanding game you’ll have one or the other depending on if you’ve overvolted your card you not. The next two states occur when the GPU is starting to reduce it’s clockspeeds due to an event (power usage too high or card running too hot). The last state is what you get at idle, or if a game isn’t very demanding and the card clocks down to save power.
perfcap reason pwr
Welcome to TPU!, hopefully we can help you resolve your issues but first we need more information from you.
- Can you provide your system specs? (You can go into your profile and add them, that way you don’t have to post them repeatedly)
- What changed one month ago that you’re aware of?
- Is the rest of your system stable or does it crash?
- Have you updated your operating system and graphics drivers?
- What games are you testing with?
newtekie1
Semi-Retired Folder
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- Sep 14, 2017
- #4
Give us a screen shot of GPU-Z’s sensor tab too.
The PWR perfcap reason means the GPU is hitting the Power Consumption limit.
Franckette
| System Name | Laptop Alienware m 17x R4 |
|---|---|
| Processor | Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz |
| Memory | 12.0 Go |
| Video Card(s) | GTX 780M |
| Storage | SAMSUNG SSD PM830 mSATA 64GB |
- Sep 14, 2017
- #5
I’ve
System Name: Laptop Alienware m 17x R4 Win 7
Processor: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz
Memory: 12.0 Go
Video Card(s): GTX 780M
Hard Disk(s): SAMSUNG SSD PM830 mSATA 64GB
Before this month i’ved some crashs and freezes (only in games like Fallout 4)
And i’ve low fps when i do a Furmark but not with Benchmark.
In Gpu-Z in percap reason there is writting Pwr and the bar become green.
I’ve the laster driver.
This is a sreen shot
Attachments
Mindweaver
Moderato®™
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| Memory | CORSAIR Vengeance LPX 32GB (2 x 16GB) DDR4 3600 / G.Skill DDR4 2800 16GB 4x4GB |
| Video Card(s) | EVGA RTX 2070 Black / PNY Quadro K2000 |
| Storage | 2x Samsung 980 1TB M.2, 2x Crucial 1TB SSD / Samsung 870 PRO 500GB M.2 |
| Display(s) | Samsung 32" Odyssy G5 Gaming 144hz 1440p, ViewSonic 32" 72hz 1440p / 2x ViewSonic 32" 72hz 1440p |
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| Benchmark Scores | Yes |
- Sep 14, 2017
- #6
@Franckette welcome to TPU. Also, in the future don’t double post. If you need to add something, just edit your last post. Thanks!
EDIT: You can go over our Forum Guidelines here.
Vellinious
| System Name | Vellinious |
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| Storage | 512 GB Samsung 950 Pro, 120GB Kingston Hyper X SSD, 2 x 1TB WD Caviar Black |
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| Power Supply | EVGA SuperNova 1000P2, EVGA SuperNova 750G2 |
| Mouse | Razer Naga Molten Edition |
| Keyboard | TT eSports Challenger Ultimate |
| Benchmark Scores | Timespy-1080 SLI-15972 |
- Sep 14, 2017
- #7
I’ve
System Name: Laptop Alienware m 17x R4 Win 7
Processor: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz
Memory: 12.0 Go
Video Card(s): GTX 780M
Hard Disk(s): SAMSUNG SSD PM830 mSATA 64GB
Before this month i’ved some crashs and freezes (only in games like Fallout 4)
And i’ve low fps when i do a Furmark but not with Benchmark.
In Gpu-Z in percap reason there is writting Pwr and the bar become green.
I’ve the laster driver.
This is a sreen shot
You’re hitting the power limit perf cap there. As temps increase, so does voltage and heat. as voltage goes up, so does the required power. When you hit the power limit prescribed in the bios for the GPU, it will throttle the core and voltage to bring it back down where it should be.
A couple of things might help, assuming you can use Afterburner or PrecisionX on a mobile GPU.
1. Create a custom fan curve to keep the GPU cooler
2. Increase the power limit slider in MSI AB / EVGA PCX
Deleted member 67555
Guest
- Sep 14, 2017
- #8
Vayra86
| Processor | i7 8700k 4.6Ghz @ 1.24V |
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- Sep 14, 2017
- #9
One more point. Do NOT run Furmark any more. This may have already contributed to the lacking performance or accelerated wear on the cooling solution. If you do increase the power limit slider of this card, this will also increase temperatures further, in turn causing more throttling. I wouldn’t recommend this.
In the end, this is why I hate gaming laptops.
eidairaman1
The Exiled Airman
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- Sep 14, 2017
- #10
Needs a good cleanout, possibly a good thermal compound job on the cpu and gpu, mobo chipset.
Other thing, perhaps a bigger brick, other things, lower resolution and detail levels for smoother gameplay, it uses a Mobility gpu which are tailored for power sipping not running full out.
This being a laptop there really isn’t a whole lot out there to OC that cpu
newtekie1
Semi-Retired Folder
| Processor | Intel Core i7 10850K@5.2GHz |
|---|---|
| Motherboard | AsRock Z470 Taichi |
| Cooling | Corsair H115i Pro w/ Noctua NF-A14 Fans |
| Memory | 32GB DDR4-3600 |
| Video Card(s) | RTX 2070 Super |
| Storage | 500GB SX8200 Pro + 8TB with 1TB SSD Cache |
| Display(s) | Acer Nitro VG280K 4K 28" |
| Case | Fractal Design Define S |
| Audio Device(s) | Onboard is good enough for me |
| Power Supply | eVGA SuperNOVA 1000w G3 |
| Software | Windows 10 Pro x64 |
- Sep 14, 2017
- #11
This isn’t a heat issue, I’m not sure why people are thinking it is. There is a completely different Perfap reason for heat, it would be coming up Thrm if the GPU was hitting the thermal limit.
Yes, don’t run furmark, it isn’t an accurate test for power throttling. It basically causes the card the power throttle immediately.
Run something like Unigine Heaven in a window with GPUz running and take a screen shot of the sensors tab.
Vellinious
| System Name | Vellinious |
|---|---|
| Processor | i7 6950X |
| Motherboard | ASUS X99-A II |
| Cooling | Custom Liquid |
| Memory | 32GB GSkill TridentZ 3200 14 |
| Video Card(s) | 2 x EVGA GTX 1080 FTW |
| Storage | 512 GB Samsung 950 Pro, 120GB Kingston Hyper X SSD, 2 x 1TB WD Caviar Black |
| Case | Thermaltake Core X9, stacked |
| Power Supply | EVGA SuperNova 1000P2, EVGA SuperNova 750G2 |
| Mouse | Razer Naga Molten Edition |
| Keyboard | TT eSports Challenger Ultimate |
| Benchmark Scores | Timespy-1080 SLI-15972 |
- Sep 15, 2017
- #12
This isn’t a heat issue, I’m not sure why people are thinking it is. There is a completely different Perfap reason for heat, it would be coming up Thrm if the GPU was hitting the thermal limit.
Yes, don’t run furmark, it isn’t an accurate test for power throttling. It basically causes the card the power throttle immediately.
Run something like Unigine Heaven in a window with GPUz running and take a screen shot of the sensors tab.
newtekie1
Semi-Retired Folder
| Processor | Intel Core i7 10850K@5.2GHz |
|---|---|
| Motherboard | AsRock Z470 Taichi |
| Cooling | Corsair H115i Pro w/ Noctua NF-A14 Fans |
| Memory | 32GB DDR4-3600 |
| Video Card(s) | RTX 2070 Super |
| Storage | 500GB SX8200 Pro + 8TB with 1TB SSD Cache |
| Display(s) | Acer Nitro VG280K 4K 28" |
| Case | Fractal Design Define S |
| Audio Device(s) | Onboard is good enough for me |
| Power Supply | eVGA SuperNOVA 1000w G3 |
| Software | Windows 10 Pro x64 |
- Sep 15, 2017
- #13
Temps have nothing to do with this issue. The GPU is running well within the temps it should be, it is not getting anywhere near hot enough to cause a noticeable loss in efficiency. And the GPU would be thermal throttling and would probably shut down before the temperature would be high enough to cause an increase in power draw.
What is more likely is that something is lowering the Power Limit(MSI Afterburner for instance lets you drop the power limit to 50%), or the power sense circuit on the GPU is starting to go wonky.
Vellinious
| System Name | Vellinious |
|---|---|
| Processor | i7 6950X |
| Motherboard | ASUS X99-A II |
| Cooling | Custom Liquid |
| Memory | 32GB GSkill TridentZ 3200 14 |
| Video Card(s) | 2 x EVGA GTX 1080 FTW |
| Storage | 512 GB Samsung 950 Pro, 120GB Kingston Hyper X SSD, 2 x 1TB WD Caviar Black |
| Case | Thermaltake Core X9, stacked |
| Power Supply | EVGA SuperNova 1000P2, EVGA SuperNova 750G2 |
| Mouse | Razer Naga Molten Edition |
| Keyboard | TT eSports Challenger Ultimate |
| Benchmark Scores | Timespy-1080 SLI-15972 |
- Sep 15, 2017
- #14
Temps have nothing to do with this issue. The GPU is running well within the temps it should be, it is not getting anywhere near hot enough to cause a noticeable loss in efficiency. And the GPU would be thermal throttling and would probably shut down before the temperature would be high enough to cause an increase in power draw.
What is more likely is that something is lowering the Power Limit(MSI Afterburner for instance lets you drop the power limit to 50%), or the power sense circuit on the GPU is starting to go wonky.
I think if you look at the sensors tab screenshot there, you’ll see exactly what I’m talking about. It’s idling at around 50c, load temps are much higher. As temps increase during load, you’ll also notice voltage increasing until it hits the power limit perf cap, at which time it throttles. temps, clock and voltage drops, and then returns to normal, and then throttles again.
As I stated. increasing the power limit in AB may alleviate the issue, but creating a custom fan curve to keep the GPU cooler under load certainly can’t hurt that either.
I will also concede, that something could be "wonky". But before resorting to the conclusion that the GPU is just broke, I’d try the alternatives that I listed.
Franckette
| System Name | Laptop Alienware m 17x R4 |
|---|---|
| Processor | Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz |
| Memory | 12.0 Go |
| Video Card(s) | GTX 780M |
| Storage | SAMSUNG SSD PM830 mSATA 64GB |
- Sep 16, 2017
- #15
Attachments
P4-630
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| Software | Windows 11 / Windows 10 |
| Benchmark Scores | Cinebench R23 (Multi Core) 22813 @ stock |
- Sep 16, 2017
- #16
I do see some green in the GPU-Z screenshot though.
But as long as you can run everything again without huge fps drops you’re fine then.
Franckette
| System Name | Laptop Alienware m 17x R4 |
|---|---|
| Processor | Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz |
| Memory | 12.0 Go |
| Video Card(s) | GTX 780M |
| Storage | SAMSUNG SSD PM830 mSATA 64GB |
- Sep 16, 2017
- #17
newtekie1
Semi-Retired Folder
| Processor | Intel Core i7 10850K@5.2GHz |
|---|---|
| Motherboard | AsRock Z470 Taichi |
| Cooling | Corsair H115i Pro w/ Noctua NF-A14 Fans |
| Memory | 32GB DDR4-3600 |
| Video Card(s) | RTX 2070 Super |
| Storage | 500GB SX8200 Pro + 8TB with 1TB SSD Cache |
| Display(s) | Acer Nitro VG280K 4K 28" |
| Case | Fractal Design Define S |
| Audio Device(s) | Onboard is good enough for me |
| Power Supply | eVGA SuperNOVA 1000w G3 |
| Software | Windows 10 Pro x64 |
- Sep 17, 2017
- #18
I looked at the screenshot before I posted. I don’t not see what you are talking about.
Idle temperature means nothing. This is a laptop, idle temps will be high because the fan is likely turned off at idle. And the load temps are not going up that high. Judging by the graph they look like thy are getting up into the 70°C range. I can guarantee the temp is staying below 82°C, because that is the thermal throttle temperature, and the GPU isn’t thermal throttling.
That isn’t how it works, at least not noticeably. The voltage on the GPU doesn’t go up because of the temperature. The voltage goes up because the driver is telling the voltage regulator to increase the voltage to keep the GPU stable at the higher clock speeds.
Yes, if temperatures get really high, then the efficiency will go down and the power draw will increase. However, silicon has to get really really hot for this efficiency to matter to the point that the card would throttle due to the power limit. In fact, the temperature would have to be so high, the GPU would already be throttling due to the temperature. We aren’t seeing thermal throttling in the sensor tab, so temperature is not an issue.
As I stated. increasing the power limit in AB may alleviate the issue, but creating a custom fan curve to keep the GPU cooler under load certainly can’t hurt that either.
I will also concede, that something could be "wonky". But before resorting to the conclusion that the GPU is just broke, I’d try the alternatives that I listed.
Going on a wild goose chase trying to solve a temperature issue that doesn’t exist just wastes time that we could be using trying to solve the actual issue.
Yes, increasing the power limit in MSI Afterburner is the first thing I would try too. Heck, it or a program like it might be what is causing the issue.
I’d also do a clean driver install.
Vellinious
| System Name | Vellinious |
|---|---|
| Processor | i7 6950X |
| Motherboard | ASUS X99-A II |
| Cooling | Custom Liquid |
| Memory | 32GB GSkill TridentZ 3200 14 |
| Video Card(s) | 2 x EVGA GTX 1080 FTW |
| Storage | 512 GB Samsung 950 Pro, 120GB Kingston Hyper X SSD, 2 x 1TB WD Caviar Black |
| Case | Thermaltake Core X9, stacked |
| Power Supply | EVGA SuperNova 1000P2, EVGA SuperNova 750G2 |
| Mouse | Razer Naga Molten Edition |
| Keyboard | TT eSports Challenger Ultimate |
| Benchmark Scores | Timespy-1080 SLI-15972 |
- Sep 17, 2017
- #19
I looked at the screenshot before I posted. I don’t not see what you are talking about.
Idle temperature means nothing. This is a laptop, idle temps will be high because the fan is likely turned off at idle. And the load temps are not going up that high. Judging by the graph they look like thy are getting up into the 70°C range. I can guarantee the temp is staying below 82°C, because that is the thermal throttle temperature, and the GPU isn’t thermal throttling.
That isn’t how it works, at least not noticeably. The voltage on the GPU doesn’t go up because of the temperature. The voltage goes up because the driver is telling the voltage regulator to increase the voltage to keep the GPU stable at the higher clock speeds.
Yes, if temperatures get really high, then the efficiency will go down and the power draw will increase. However, silicon has to get really really hot for this efficiency to matter to the point that the card would throttle due to the power limit. In fact, the temperature would have to be so high, the GPU would already be throttling due to the temperature. We aren’t seeing thermal throttling in the sensor tab, so temperature is not an issue.
Going on a wild goose chase trying to solve a temperature issue that doesn’t exist just wastes time that we could be using trying to solve the actual issue.
Yes, increasing the power limit in MSI Afterburner is the first thing I would try too. Heck, it or a program like it might be what is causing the issue.
I’d also do a clean driver install.
1. Then you’re blind
2. Idle temps are the baseline, and it’s clear that as the graph goes up in temps, so does the voltage. Correlation in this case, does equal causation.
5. The one thing we agree on, as well as the driver install
I’ll agree to disagree. I would rather try to set a custom fan curve to help the power limit, and set a higher power limit, than just automatically assume the GPU is just jacked up. Better to at least research all options before jumping to that conclusion, but. according to what you’re saying, just wing it, and go right to, "uh, it’s broken". I’m sincerely sorry, but, that’s just stupid beyond reason.
eidairaman1
The Exiled Airman
| System Name | PCGOD |
|---|---|
| Processor | AMD FX 8350@ 5.0GHz |
| Motherboard | Asus TUF 990FX Sabertooth R2 2901 Bios |
| Cooling | Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED |
| Memory | 16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V) |
| Video Card(s) | AMD Radeon 290 Sapphire Vapor-X |
| Storage | Samsung 840 Pro 256GB, WD Velociraptor 1TB |
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| Power Supply | Seasonic 1250 XM2 Series (XP3) |
| Mouse | Roccat Kone XTD |
| Keyboard | Roccat Ryos MK Pro |
| Software | Windows 7 Pro 64 |
- Sep 17, 2017
- #20
Aquinus
Resident Wat-man
| System Name | Apollo |
|---|---|
| Processor | Intel Core i9 9880H |
| Motherboard | Some proprietary Apple thing. |
| Memory | 64GB DDR4-2667 |
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| Software | MacOS 12.1 |
- Sep 17, 2017
- #21
That isn’t how it works, at least not noticeably. The voltage on the GPU doesn’t go up because of the temperature. The voltage goes up because the driver is telling the voltage regulator to increase the voltage to keep the GPU stable at the higher clock speeds.
Yes, if temperatures get really high, then the efficiency will go down and the power draw will increase. However, silicon has to get really really hot for this efficiency to matter to the point that the card would throttle due to the power limit. In fact, the temperature would have to be so high, the GPU would already be throttling due to the temperature. We aren’t seeing thermal throttling in the sensor tab, so temperature is not an issue.
I’m going to refute this one. Temperature itself does not increase power draw however, heat does impact how quickly a transistor can switch states which is the real thing that needs to be considered. It’s not unrealistic that nVidia GPUs factor temperature in when determining what voltage to use. There are only two ways to make a transistor switch faster which is a higher driving voltage or lower operating temperature. Also, ohm’s law states that when resistance is constant that V ∝ I so any increase in voltage will have a corresponding increase in current and heat produced is a function of the square of the current.
So, temperatures might be reasonable but, increased driving voltage will increase current draw and if temperatures are reasonable, could mean that a power limit would be hit before a temperature limit but, that isn’t to say that temperature doesn’t factor into the equation even if it’s not the limiting factor.
PerfCap Reasons [GPU-z]
Below are the PerfCap Reasons, along with a brief description to do with what is causing them.
vRel = Reliability. Indicating performance is limited by voltage reliability.
VOp = Operating. Indicating performance is limited by max operating voltage(Hardware Limit).
Pwr = Power. Indicating performance is limited by total power limit.
Thrm = Thermal. Indicating performance is limited by temperature limit.
Util = Utilization. Indicating performance is limited by GPU utilization.
Example here, GPU is not being used, however GPU-z has woken the device. The GPU is not at a higher speed because the GPU usage is low. PerfCap Reason shown in the blue outline below.
looniam
professional curmudgeon
Remember the golden rule of statistics: A personal sample size of one is a sufficient basis upon which to draw universal conclusions.
CPU: i7-3770K | Motherboard: Asus P8Z77-V Pro | GPU: EVGA 980TI SC+ | RAM: 16Gb PNY ddr3 1866 | Hard Drive: PNY 1311 240Gb | Hard Drive: 1 TB Seagate | Hard Drive: 3 TB WD Blue | Optical Drive: DVD DVDRW+/- | Power Supply: EVGA SuperNova 750 G2 | Cooling: EKWB P280 kit | Cooling: EK-VGA supremacy | Case: Stryker M [hammered and drilled] | Operating System: Win X | Monitor: LG 24MC57HQ-P | Keyboard: Ducky Zero [blues] | Mouse: corsair M65 | Audio: SB Recon3D | Audio: Klipsch ProMedia 2.1
PedroC1999
Ultimate Rig Winner
You get 3 cookies, I am proud.
Nice overclock too!
jlhawn
Registered
looniam
professional curmudgeon
Remember the golden rule of statistics: A personal sample size of one is a sufficient basis upon which to draw universal conclusions.
CPU: i7-3770K | Motherboard: Asus P8Z77-V Pro | GPU: EVGA 980TI SC+ | RAM: 16Gb PNY ddr3 1866 | Hard Drive: PNY 1311 240Gb | Hard Drive: 1 TB Seagate | Hard Drive: 3 TB WD Blue | Optical Drive: DVD DVDRW+/- | Power Supply: EVGA SuperNova 750 G2 | Cooling: EKWB P280 kit | Cooling: EK-VGA supremacy | Case: Stryker M [hammered and drilled] | Operating System: Win X | Monitor: LG 24MC57HQ-P | Keyboard: Ducky Zero [blues] | Mouse: corsair M65 | Audio: SB Recon3D | Audio: Klipsch ProMedia 2.1
jlhawn
Registered
Originally Posted by looniam
thanks i was hungry but unfortunately that clock speed isn’t game or benchmark stable
PedroC1999
Ultimate Rig Winner
Originally Posted by jlhawn
so per your list my gpu is not being used while gaming?
my gpu-z readings while gaming
Originally Posted by jlhawn
what brand of 980ti do you have?
my PNY 980 is stable at the over clock I have shown in my gpu-z readings.
your 980ti should be also.
EVGA Hybrid, 1460Mhz at stock 1.199v is my daily OC.
1500Mhz is stable at 1.255v, havn’t tried anything else, but assume 1530 is stable at 1.278v which is the max
jlhawn
Registered
Originally Posted by PedroC1999
It is, except at the time of writing, you were not in game, and so the card was not being used. Hover your mouse earlier on to check what it was ta during gaming.
EVGA Hybrid, 1460Mhz at stock 1.199v is my daily OC.
1500Mhz is stable at 1.255v, havn’t tried anything else, but assume 1530 is stable at 1.278v which is the max
PedroC1999
Ultimate Rig Winner
The 980 and below uses a Core different to the Ti’s GM200.
The 980Ti is based on the GM200 found in the Titan, whereas the 980 and below are GM206.
They use different base clock speeds and in general run at a faster speed than the GM200 equivalents even when overclocked. RAM remains the same other than select TI’s that use Hynix instead of Elpida.
looniam
professional curmudgeon
just ignore my image — i modded my bios for gaming and was having some fun in afterburner to post that.
found what the max core speed my card does for that voltage then bumped down 26Mhz (two boost bins) for "game stable" regardless of driver version. yeah, i have had a drive spit out what was a stable OC before.
Remember the golden rule of statistics: A personal sample size of one is a sufficient basis upon which to draw universal conclusions.
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