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Wrong readings?

Go to solution Solved by Agall,
1 hour ago, rriccc said:

My GPU (4070 MSI Ventus x3 OC) is getting clock reads of 2700mhz (which is unusual considering I have not overclocked this card whatsoever and the stock boost clock is simply 2505mhz) and I'm also getting 10500mhz memory clock reads (which is VERY weird when apparently my GPU's mem clock is supposed to be 1313mhz...). Would anyone know why this is happening? 

My rig:
4070 MSI Ventus X3 OC
i5-12600KF
Thermaltake SMART BM2 
Kingston Fury Beast 2x8 3200mhz  


image.png.f0f207bb14eeb1ffcd13c9a66e466de2.png

TLDR: The effective memory clock is what you're looking at which is 8x the actual memory clock due to the way GDDR6x works and the memory bus width. Regarding GPU clock speed, the GPU will boost itself if there's thermal, voltage, and power headroom. 

 

Regarding GPU effective memory clock, that's one hell of a rabbit hole...

 

The GPU's effective memory clock at 10504MHz / (4*2) = 1313MHz, the actual memory clock. DDR being 'double data rate' where GDDR5X and higher is technically Quad data rate. GDDR6x is able to transfer two bits at the same speed as GDDR6, therefore being double Quad data rate (aka 2*4).

 

Doubling I/O Performance with PAM4: Micron Innovates GDDR6X Graphics Memory

 

image.png.e283fe19e7823912db219801c1a234be.png

 

image.png.09281e7928d0446309c2fa7a0dfdb63d.png

 

 

Also discussed in this LTT thread a while ago with DDR5.

 

"Effective memory clock speeds in this case refer to the idea that the device is able to achieve more than one data transfers per cycle."

 

My GPU (4070 MSI Ventus x3 OC) is getting clock reads of 2700mhz (which is unusual considering I have not overclocked this card whatsoever and the stock boost clock is simply 2505mhz) and I'm also getting 10500mhz memory clock reads (which is VERY weird when apparently my GPU's mem clock is supposed to be 1313mhz...). Would anyone know why this is happening? 

My rig:
4070 MSI Ventus X3 OC
i5-12600KF
Thermaltake SMART BM2 
Kingston Fury Beast 2x8 3200mhz  


image.png.f0f207bb14eeb1ffcd13c9a66e466de2.png

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1 hour ago, rriccc said:

My GPU (4070 MSI Ventus x3 OC) is getting clock reads of 2700mhz (which is unusual considering I have not overclocked this card whatsoever and the stock boost clock is simply 2505mhz) and I'm also getting 10500mhz memory clock reads (which is VERY weird when apparently my GPU's mem clock is supposed to be 1313mhz...). Would anyone know why this is happening? 

My rig:
4070 MSI Ventus X3 OC
i5-12600KF
Thermaltake SMART BM2 
Kingston Fury Beast 2x8 3200mhz  


image.png.f0f207bb14eeb1ffcd13c9a66e466de2.png

TLDR: The effective memory clock is what you're looking at which is 8x the actual memory clock due to the way GDDR6x works and the memory bus width. Regarding GPU clock speed, the GPU will boost itself if there's thermal, voltage, and power headroom. 

 

Regarding GPU effective memory clock, that's one hell of a rabbit hole...

 

The GPU's effective memory clock at 10504MHz / (4*2) = 1313MHz, the actual memory clock. DDR being 'double data rate' where GDDR5X and higher is technically Quad data rate. GDDR6x is able to transfer two bits at the same speed as GDDR6, therefore being double Quad data rate (aka 2*4).

 

Doubling I/O Performance with PAM4: Micron Innovates GDDR6X Graphics Memory

 

image.png.e283fe19e7823912db219801c1a234be.png

 

image.png.09281e7928d0446309c2fa7a0dfdb63d.png

 

 

Also discussed in this LTT thread a while ago with DDR5.

 

"Effective memory clock speeds in this case refer to the idea that the device is able to achieve more than one data transfers per cycle."

 

Builder/Enthusiast/Overclocker since 2012 with a focus on SFF/ITX since 2014.

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Just now, Agall said:

The GPU's memory clock listed here is additive to each channel, which is 8 channel. The stock speed being 1313MHz, which is 10504/8. 

Yeah, you're totally right. I watched some videos to see if something was up and this is all totally normal. My fault here, thanks for the clarification though.

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8 minutes ago, rriccc said:

Yeah, you're totally right. I watched some videos to see if something was up and this is all totally normal. My fault here, thanks for the clarification though.

I'm looking for a way to fully explain this currently, will add later.

Builder/Enthusiast/Overclocker since 2012 with a focus on SFF/ITX since 2014.

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39 minutes ago, WereCat said:

GPU will clock higher than advertised as long as there is both thermal and power headroom. 

That's why cards advertised to be with OC for extra $ vs the same model without OC in the name are stupid... Because all cards will OC themselves. 

Feel free to add anything to my rabbit hole on effective memory clock. Edited my first post to be technically correct.

Builder/Enthusiast/Overclocker since 2012 with a focus on SFF/ITX since 2014.

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