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Gulftown Product Name and Tentative Price Surfaces

SummerDays said:
Before you do that, make sure your base clock is set back to the standard 133 Mhz.
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SummerDays said:
Please prove that I am wrong. I humbly await your proof!
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It's simple. That setting doesn't make your QPI run at 6.4GT/s, it is a multiplier! Fancy eh? If you were to set the QPI at what your bios calls 6.4GT/s then it wouldn't be actually running 6.4GT/s. Check your CPU-Z if you don't believe me.
 
SummerDays said:
QPI rates are just measured based on data flow aren't they? :)
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Yes, now I did something funny. I set my QPI at 4.8GT/s in bios, and when I get into windows I have this...

qpi.jpg


To me that just confirms that the QPI setting is only a multiplier, and that multiplier (x36) doesn't change on a 920. Even if you're at 133. If you set the multiplier higher, but it won't actually go higher. Overclocking the QPI is possible by increasing the BCLK on a 920, but you can't actually change it just by fiddling with the multiplier.

::EDIT:: Color me funny but you can actually set your QPI higher at 133, and only 133. That's brilliant! It does absolutely nothing since neither the cpu multiplier or bclk are high enough for it to be bottlenecked. On EE chips you can actually set your QPI to (x48) with higher BCLKs and it will work whereas it won't on my 920.
 
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Binge said:
Yes, now I did something funny. I set my QPI at 4.8GT/s in bios, and when I get into windows I have this...

http://img.techpowerup.org/091214/qpi.jpg

To me that just confirms that the QPI setting is only a multiplier, and that multiplier (x36) doesn't change on a 920. Even if you're at 133. If you set the multiplier higher, but it won't actually go higher. Overclocking the QPI is possible by increasing the BCLK on a 920, but you can't actually change it just by fiddling with the multiplier.
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Nice to know for my pending 930 purchase. :toast:
 
When you change the QPI to 6.4 in your motherboard bios (like on this Asus Rampage II

Extreme) it changes the QPI clock frequency to 3.2 Ghz.

To achieve the actual throughput your system is going to have to be clocked faster than 2.66 Ghz.

You can't change the multiplier to reach 4 Ghz. So how are you going to do it?

:roll:

In any case, when Intel is making their i7 series chip, do they make them all exactly the same and then product bin them?
 
SummerDays said:
When you change the QPI to 6.4 in your motherboard bios (like on this Asus Rampage II

Extreme) it changes the QPI clock frequency to 3.2 Ghz.

To achieve the actual throughput your system is going to have to be clocked faster than 2.66 Ghz.

You can't change the multiplier to reach 4 Ghz. So how are you going to do it?

:roll:

In any case, when Intel is making their i7 series chip, do they make them all exactly the same and then product bin them?
Click to expand...

To a degree, yes. Though there have been 920s out there that will chew the pants off of an EE chip until sub-0 CPU temperatures are introduced.
 
Anyways, after all that..

Setting the QPI results in a 3.2 Ghz speed.

Since they consider it bi-directional, they must get 6.4 GTransfers out of it.

Is that not the proof we were looking for? (correct me if I'm wrong here someone) :D

Which brings me back to my original question: will we be able to do that on the 930?!
 
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SummerDays said:
Anyways, after all that..

Setting the QPI results in a 3.2 Ghz speed.

Since they consider it bi-directional, they must get 6.4 GTransfers out of it.

Is that not the proof we were looking for? (correct me if I'm wrong here someone) :D

Which brings me back to my original question: will we be able to do that on the 930?!
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Set the QPI multiplier to x48 at only a 133 BCLK? You should have your answer, and like you said it doesn't matter since the power will not exist to utilize all of that bandwidth.
 
>> You should have your answer, and like you said it doesn't matter since the power will not exist to utilize all of that bandwidth

I don't have DDR3 2000 Ghz+ Ram sitting on my desk, though, which brings us back to being able to simply select the speed of the ram in use. We're only talking about 24.6 GB/s though.

btw, if you're doing this (the guy with houses face whose name right now eludes me), the motherboard will default to a higher memory setting. Make sure you reduce it to what your memory is rated for. I reduced it in the bios to 1.51 volts so it wouldn't increase automatically to 1.65 volts or 1.8 volts.
 
I've done it loads of times. I did a few memory tests and in fact at 2.66ghz it's actually slightly slower than at 4.8GT/s. However if I oc it then it will perform faster but I fear that my oc will be less due to the QPI being way to high.
 
SummerDays said:
>> You should have your answer, and like you said it doesn't matter since the power will not exist to utilize all of that bandwidth

I don't have DDR3 2000 Ghz+ Ram sitting on my desk, though, which brings us back to being able to simply select the speed of the ram in use. We're only talking about 24.6 GB/s though.

btw, if you're doing this (the guy with houses face whose name right now eludes me), the motherboard will default to a higher memory setting. Make sure you reduce it to what your memory is rated for. I reduced it in the bios to 1.51 volts so it wouldn't increase automatically to 1.65 volts or 1.8 volts.
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You don't need 2GHz ram to use 6.4GT/s bandwidth, you need a cpu that's operating quickly enough to use the ram.
 
Binge said:
You don't need 2GHz ram to use 6.4GT/s bandwidth, you need a cpu that's operating quickly enough to use the ram.
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You do need fast memory. We're talking about a fast link between a CPU and Memory.

Obviously you need fast memory on the other side of the link in order take advantage of the link speed.

As well, if you're really going to overclock, you'll need the fast memory to do it!
 
damn only extreme version , any news for six core non extreme
 
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