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post #61201 of 67908
Quote:
Originally Posted by Sgt Bilko View Post

Link please?

I would like to see them as the only ones I've seen are on an 8150.

Here, this illustrates my point quite well on a newer AMD CPU.

Fallout 4 memory speed comparison

AMD gains ~15%
Intel gains ~50%

Not really trying to push one over the other, just that the FX platform does not care so much about memory speeds.
Edited by KarathKasun - 7/8/16 at 6:43am
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post #61202 of 67908
20% gain from memory clock is wishful thinking even on Skylake.

It really boils down to how you set-up your system.

On the FX, 2133 with a CAS 9 is pretty sweet. 2400 C10 will have very little gain over that.

Even with my X99, 2666 with 11-11-13-1T with very tight tertiaries can outdo 3200 15-15-15-1T. You can go look for anyone with a 5930K that can reach 70K+ with Aida64 benches regardless of the clocks they can muster. You will fail. biggrin.gif

Memory clocks is deceiving. I'd advise learning where the system play nice primarily than aiming for clock speed.


And now, 50% thinking.gif hmmm
Edited by mus1mus - 7/8/16 at 6:47am
post #61203 of 67908
Quote:
Originally Posted by KarathKasun View Post

Here, this illustrates my point quite well on a newer AMD CPU.

Fallout 4 memory speed comparison

AMD gains ~15%
Intel gains ~50%

Not really trying to push one over the other, just that the FX platform does not care so much about memory speeds.

One game doesn't speak for all, and I wouldn't be surprised if their rig on the amd side wasn't set up with an overclock to make use of that fast ram.
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post #61204 of 67908
Quote:
Originally Posted by KarathKasun View Post

Quote:
Originally Posted by Sgt Bilko View Post

Link please?

I would like to see them as the only ones I've seen are on an 8150.

Here, this illustrates my point quite well on a newer AMD CPU.

Fallout 4 memory speed comparison

Now there is a cherry pick if ever I've seen one, Fallout 4 is quite possibly the BEST example of higher mem speed increasing fps across the board for every single platform, show me another game where a 4770k gets a 47% increase to its avg fps?

At this point in time if you are really going to buy some new ram you might as well get a higher speed kit considering they are all nearly the same price anyway so I'm not sure why you'd rather have a 1600 kit over a 2133 if they are the same price tbh.
Quote:
Originally Posted by mus1mus View Post

20% gain from memory clock is wishful thinking even on Skylake.

It really boils down to how you set-up your system.

On the FX, 2133 with a CAS 9 is pretty sweet. 2400 C10 will have very little gain over that.

Even with my X99, 2666 with 11-11-13-1T with very tight tertiaries can outdo 3200 15-15-15-1T. You can go look for anyone with a 5930K that can reach 70K+ with Aida64 benches regardless of the clocks they can muster. You will fail. biggrin.gif

Memory clocks is deceiving. I'd advise learning where the system play nice primarily than aiming for clock speed.

And now, 50% thinking.gif hmmm

Thank you Mus, my thoughts exactly
Quote:
Originally Posted by Benjiw View Post

Quote:
Originally Posted by KarathKasun View Post

Here, this illustrates my point quite well on a newer AMD CPU.

Fallout 4 memory speed comparison

AMD gains ~15%
Intel gains ~50%

Not really trying to push one over the other, just that the FX platform does not care so much about memory speeds.

One game doesn't speak for all, and I wouldn't be surprised if their rig on the amd side wasn't set up with an overclock to make use of that fast ram.

It wasn't, stock CPU speeds is how that was tested.
Edited by Sgt Bilko - 7/8/16 at 6:51am
 
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post #61205 of 67908
Quote:
Originally Posted by Benjiw View Post

One game doesn't speak for all, and I wouldn't be surprised if their rig on the amd side wasn't set up with an overclock to make use of that fast ram.

Neither platform was overclocked. And remember that this is coming from 1333 to 2400. i3 got a sizeable boost, i7 got a huge boost, FX had a decaf coffee.

FX has never scaled very much with memory speed, even in the FO4 worst case scenario it only gets 15% from nearly doubling the memory speed.

Fast memory is not going to make a night and day difference on it no matter how much you tweak it. Its not a bad thing that you can just throw whatever ram is cheapest at it and you get 90% of its maximum performance. Its just different to how other platforms react to fast memory.
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post #61206 of 67908
Quote:
Originally Posted by KarathKasun View Post

Neither platform was overclocked. And remember that this is coming from 1333 to 2400. i3 got a sizeable boost, i7 got a huge boost, FX had a decaf coffee.

FX has never scaled very much with memory speed, even in the FO4 worst case scenario it only gets 15% from nearly doubling the memory speed.

Fast memory is not going to make a night and day difference on it no matter how much you tweak it. Its not a bad thing that you can just throw whatever ram is cheapest at it and you get 90% of its maximum performance. Its just different to how other platforms react to fast memory.

I disagree, memory does make a difference from personal experience but you need to clock the system up to accept it unlike Intel where they do it for you out the box. Anyway I'm bored of this conversation now so this is my only input.
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post #61207 of 67908
Quote:
Originally Posted by Benjiw View Post

I disagree, memory does make a difference from personal experience but you need to clock the system up to accept it unlike Intel where they do it for you out the box. Anyway I'm bored of this conversation now so this is my only input.

Your lack of evidence is boring.

I had an FX system with decent CPU and CPU-NB clocks (4600/2800), the difference between 1333 and 1866 was a blip that you could easily miss. Probably in the 5-10% ballpark in a worst case scenario, much less than that on average (even with a pair of GTX 470's in it). Because of that I swapped the 8gb 1866 kit in it with the 16gb 1600 kit on my i5 before I passed the FX rig on to a friend.
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post #61208 of 67908
Quote:
Originally Posted by KarathKasun View Post

Your lack of evidence is boring.

I had an FX system with decent CPU and CPU-NB clocks (4600/2800), the difference between 1333 and 1866 was a blip that you could easily miss. Probably in the 5-10% ballpark in a worst case scenario, much less than that on average (even with a pair of GTX 470's in it). Because of that I swapped the 8gb 1866 kit in it with the 16gb 1600 kit on my i5 before I passed the FX rig on to a friend.

That's good to know and 4.6ghz on what exactly? an 8350? that's pretty low if so, unless it was an 8120? Anyway moving on.
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post #61209 of 67908
Quote:
Originally Posted by Benjiw View Post

That's good to know and 4.6ghz on what exactly? an 8350? that's pretty low if so, unless it was an 8120? Anyway moving on.

Early FX-8370 (stock vcore in the 1.45v range) with a Noctua NH-D15 + low speed adapter on the fans.

If you are done and moving on quit asking questions. rolleyes.gif
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post #61210 of 67908
again, if you can't get over about memory clocks, move aside.

1600 ?-?-?-?
1866 ?-?-?-?
2400 ?-?-?-?

There's a reason why you see a lot of positive gains on an Intel rig and not much on the FX.

Ever heard of Cache?

Take a look at Haswell, you do know that Ring on Haswell runs pretty high, right? 4 GHz and over. FX does have what? 2.6 GHz? 3Ghz for very those lucky ones?

Along with their architecture and memory controller efficiency, they can mask up timing-induced latencies going into higher clocks by sheer bandwidth. But, play along the timings and you will still see bigger performance gains.

That is also true with the FX. But we are rather limited by the bandwidth. So to going up higher with RAM frequencies gain you much lesser effect than on an Intel rig. And there, you should consider timings.

So stop saying memory clocks don't give you noticeable effect on an FX. It's how you tune those clocks that matters. Period.
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