Question Memory clock

anjris

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Aug 5, 2019
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I have MSI RTX 2080 gaming trio graphic card.

In MSI AFTERBURNER IT IS SHOWING 1510 base gpu clock which is very much fine

But below that its showing 7000 mhz memory clock. What is the meanings of this 7000 mhz.

Where it come from? Is that meaning that it has 8gb memory?
 
Yes, basically the memory clock is the speed of the VRAM on the graphics card. But not the exact physical memory amount though. The core clock is the speed of the actual GPU chip on the graphics card.

Most of the RTX 2080 models feature a base Memory Clock value of 1750 MHz. That 7000Mhz should be the "effective" or boost memory speed, though Nvidia claims a value of 14000 MHz effective clock speed.

The RTX 2080 features Memory 8GB GDDR6 Memory, on a 256bit BUS, having a total Bandwidth of 448.0 GB/s
 
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anjris

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Yes, basically the memory clock is the speed of the VRAM on the graphics card. The core clock is the speed of the actual GPU chip on the graphics card.

Most of the RTX 2080 models feature a base Memory Clock value of 1750 MHz. That 7000Mhz should be the "effective" or boost memory speed, though Nvidia claims a value of 14000 MHz effective clock speed.

The RTX 2080 features Memory 8GB GDDR6 Memory, on a 256bit BUS, having a total Bandwidth of 448.0 GB/s
Thanks for the explanation.

If NVIDIA CLAIMS BOOST MEMORY SPEED OF 14000 mhz. Why it is showing 7000 mhz currently?
 

anjris

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One example. The effective speed of a QDR memory can be calculated as given below: QDR = Quad Data Rate or Quad-pumped:

QDR_Effective_speed = Real_speed x 4.

1750*4 = 7000 Mhz. Its DOUBLE DATA RATE and Quad pumped.
So max will be always 7000 mhz. Because boost gpu clock for rtx 2080 is 1750mhz.

1750x4=7000
 
First of all, please do NOT worry about these readings, because it will confuse you as well. Just focus on playing Games. Okay, now, MSI AB won't show double of that value. It is advertised as 14000MHz, since its DOUBLE DATA RATE and Quad pumped. .

Also, the Memory clock is 14Gbps GDDR6, hence that double value.

Memory Speed14GHz

Use this GPU-Z tool to check any GPU parameter. https://www.techpowerup.com/gpuz/

Afterburner would actually report the data rate frequency/MHz as doubled. Since it's GraphicsDoubleDataRate6 memory/RAM. Afterburner already compensated for the fact that GDDR6 is Double Data Rate memory.

So the effective frequency is 2 x 2 x base frequency = 2 x 2 x 1750 = 7000 MHz.

Make a note. It is GDDR (Graphics Double Data Rate,), so the memory will communicate on both the leading/ trailing edge of its pulses. MSI Afterburner is showing you effective memory speeds, but GPU-Z on the other hand will show you the actual frequency. Double that number and it will match.
 
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anjris

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Oh BTW, how does your GPU perform in games ? What's the GPU and CPU load/usage when the card is under full load ? Do the Core and MEM clocks BOOST properly ?
I will let you know and haven't started playing games on my new upgraded gpu rtx 2080 .

I will play today and will let you know the results
 

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