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GTX 460 Hawk wrong clock speeds?

Last response: in Graphics & Displays
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April 8, 2013 12:20:07 AM

Hi guys, I have the MSI GTX 460 Hawk. After owning the card for over a year I thought about overclocking. Now before I even touched the clock speeds I check the reference clock speeds of this card. Naturally its overclock out of the box.

Now whats really bizarre is the fact that the memory clock is reporting 900MHZ. The clock speeds reported from GPU-Z are:

GPU Clock: 780mhz
Memory Clock: 900mhz???
Shader Clock: 1560mhz

However when I visit the Nvidia control panel and click on system information, it says memory clock is 3600mhz?

Is GPU-Z right or? Why is Nvidia control panel reporting 3600mhz when GPU-Z reports 900mhz? :/ 

Thanks a lot.

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a c 105 K Overclocking
a c 255 U Graphics card
a c 150 } Memory
April 8, 2013 12:44:04 AM

GDDR5 is "quad pumped" or for every clock cycle 4 bits are transferred instead of 1. DDR is double data rate so it's "double pumped". GPU-Z like CPU-Z reads actual clock speeds and not effective transfer rates. So your card is performing just fine since 900 x 4 = 3600 effective. CPU-Z reads your RAM the same way so DDR3 1600 reads as 800.

So short answer you are fine :) 

Shader clock on Nvidia 4xx cards is always double the core clock.
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April 8, 2013 1:06:22 AM

anort3 said:
GDDR5 is "quad pumped" or for every clock cycle 4 bits are transferred instead of 1. DDR is double data rate so it's "double pumped". GPU-Z like CPU-Z reads actual clock speeds and not effective transfer rates. So your card is performing just fine since 900 x 4 = 3600 effective. CPU-Z reads your RAM the same way so DDR3 1600 reads as 800.

So short answer you are fine :) 

Shader clock on Nvidia 4xx cards is always double the core clock.

Thanks, I noticed on this page http://www.hardocp.com/article/2010/09/20/msi_n460gtx_h...

They list the clock speeds as 1800 and 3600. What memory frequency is 1800?
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a c 105 K Overclocking
a c 255 U Graphics card
a c 150 } Memory
April 8, 2013 2:01:05 AM

They are just showing the memory as DDR. GDDR5 is technically DDR still so it can be written either way depending on what program is reporting the speed. Notice the GPU-Z screen shot showing it as 900Mhz here on this page in the same article.

http://www.hardocp.com/article/2010/09/20/msi_n460gtx_h...
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April 8, 2013 2:13:07 AM

anort3 said:
They are just showing the memory as DDR. GDDR5 is technically DDR still so it can be written either way depending on what program is reporting the speed. Notice the GPU-Z screen shot showing it as 900Mhz here on this page in the same article.

http://www.hardocp.com/article/2010/09/20/msi_n460gtx_h...


Ah ok thanks a lot mate :) 
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a c 105 K Overclocking
a c 255 U Graphics card
a c 150 } Memory
April 8, 2013 10:11:33 AM

No problem. Glad to help! :) 
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