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Will Bulldozer AM3+ support the same DDR3 memory as AM3? - Page 4

post #31 of 74
Quote:
Originally Posted by MicroMiniMe View Post
I think you need to do some more reading real hardware reviews on RAM. A few seconds piles up quickly on highly specialized and highly repetitive tasks. Real world use would see almost no difference. What do the people of this forum doing that requires them to save a few seconds or get a few more frames per second. If you want speed then get a faster CPU. If you want to get a bigger monitor and need more frames per second get a better video card. Getting faster RAM or lower latency RAM is a waste of money and therefore a poor value.
LOL i think you need to do some more research Ram speed is a bit more important than you think..

infact in alot of applications i would say ram speed is the bottle neck.
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post #32 of 74
Quote:
Originally Posted by MicroMiniMe View Post
I seriously doubt you've seen anything massive in anything except artificial benchmarks that have nothing to do with real world apps or games. Speed is bandwidth and timing is latency. Neither one makes a whole heck of a lot of difference and I would encourage that you go back and read some real world reviews on the subject. Try HardOCP for a start because they debunked this myth years ago.

What myth?

The faster NB speeds increase the rams performance, and in turn you see greater performance in tasks that use ram, and more so in ram intensive tasks?

Are you saying when people increase their 1090T from 2000 MHz NB to 3200 and they see a big difference in their ram speeds and the L3 there was really no gain?

I think you're on the wrong form, this is overclock.net, we care about a few seconds, and we care about a few fps.

I've already seen the difference between a 1090T on DDR2 and a i5-2500k on DDR3... Here let me show you.

1090T on DDR2:



i5-2500k on DDR3:




Guess what?

My 1090T at 4.4GHz was fast enough to feed my gpu in a benchmark that focused on pretty much the gpu only... The problem wasn't my 1090T, the problem was my DDR2 wasn't able to provide new information fast enough. This is different than a cpu bottleneck, where the core usage hits 100% of total usage is equal to 100% of the thread workload... Heaven doesn't do that, that a ram bottleneck with a slight cpu bottleneck, but nothing major.
    
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post #33 of 74
I think i can test this theroy i have a Phen II chip a DDR2 and DDR3 Mobo.
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post #34 of 74
Your example is faulty. Using 2 different types of architecture CPU to compare memory performace is no good. Intel CPUs have been known to be tied more to memory speed, while AMD has been tied more to tighter memory timings.

Much better test:
Take the 1060T (or any other AM3 CPU) and put it in an AM2+ motherboard that will support it, and then in an AM3 motherboard.

Test 1) Make the timings and speed the same between the two. What we should see with the timings the same (in theory) is the difference between the DDR2 memory controller and the DDR3 memory controller.

Test 2) Max out the memory speed with loose timings for both types of memory.

Test 3) Max out the memory speed and tighten the timings for both types of memory.

Test 4+) Any other ideas like playing with the NB clock?
Edited by wamubu - 1/26/11 at 1:47am
    
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post #35 of 74
Over clocking DDR2 to DDR3 speeds is a bad idea.

Underclocking DDR3 to DDR2 is probably better..
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post #36 of 74
Balla's spent the last two weeks saying how his 2500-k slaughters his old 1090T, now he expects the difference in cpu's to make no difference in a graphics bench? Not only is the 2500k known for excellent game performance it also has an improved (over previos i7-i5) imc.

You need to test the same cpu's.
Edited by purpleannex - 1/26/11 at 4:05am
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post #37 of 74
Here is my ddr2 - slightly lower NB than what is in that benchmark, but this should give us a general idea.



Here is what the SB chip gets:


Edited by BallaTheFeared - 1/26/11 at 3:21pm
    
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post #38 of 74


edit: that gifs slow, LOL, I think the file hosting site is having bandwidth problems!
Edited by purpleannex - 1/26/11 at 4:15am
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post #39 of 74
Quote:
Originally Posted by purpleannex View Post


edit: that gifs slow, LOL, I think the file hosting site is having bandwidth problems!
lol my bad, same test this time... I think thats what the double face palm was for
    
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post #40 of 74
Quote:
Originally Posted by StuffStuff1 View Post
LOL i think you need to do some more research Ram speed is a bit more important than you think..

infact in alot of applications i would say ram speed is the bottle neck.
My bad, I didn't realize you're an authority on the subject and that the gentlemen over at HardOCP are the noobs. Not to mention numerous other hardware reviews that show RAM speed as being a lame investment for your dollar. You know, poor value?

Quote:
Originally Posted by BallaTheFeared View Post
What myth?

The faster NB speeds increase the rams performance, and in turn you see greater performance in tasks that use ram, and more so in ram intensive tasks?

Are you saying when people increase their 1090T from 2000 MHz NB to 3200 and they see a big difference in their ram speeds and the L3 there was really no gain?

I think you're on the wrong form, this is overclock.net, we care about a few seconds, and we care about a few fps.

I've already seen the difference between a 1090T on DDR2 and a i5-2500k on DDR3... Here let me show you.

1090T on DDR2:



i5-2500k on DDR3:




Guess what?

My 1090T at 4.4GHz was fast enough to feed my gpu in a benchmark that focused on pretty much the gpu only... The problem wasn't my 1090T, the problem was my DDR2 wasn't able to provide new information fast enough. This is different than a cpu bottleneck, where the core usage hits 100% of total usage is equal to 100% of the thread workload... Heaven doesn't do that, that a ram bottleneck with a slight cpu bottleneck, but nothing major.
How quickly they become assimilated by the collective of Intel crap. Value for the dollar dude unless you have bottomless pockets unlike the rest of us. A few seconds here or there isn't worth that much money because you're money is better spent on a faster CPU or GPU. Get it?

Quote:
Originally Posted by purpleannex View Post


edit: that gifs slow, LOL, I think the file hosting site is having bandwidth problems!
Pickard feels like I do trying to explain the obvious to people who are wound up too tight.
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