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DDR3>DDR2 Performance Decrease...AMD Hexacore

@all....(specifically including BIGWAYNE)

thingemajib gave a satisfying answer which i accept solves this query.

b), the HT transfer rate, which is measured at twice the clock speed, as it can make one tranfer with the rise and fall of the clock signal (just like DDR ram). Some AM2+/AM3 processors have a HT speed of 1800MHz, hence a transfer rate of 3600MT/s (Mega-tranfers per second).

thats the reason.....thanks guys , this was a big help.

OCUK ROCKS AND so do thier Members........
 
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If i may stray from the topic and ask another question, would it be wrong?

Based on your answers i plan to upgrade my PC at the end of this year.

Current:
Lga775 board dg41rq
e7400 core 2 duo
2gb x 2 ddr2 kingston value ram @800MHz


Planned :
AM2+ board (the link provided in the 1st post)(MSI)
a pii x6 or a pii x4

rest system will remain unchanged.

note that the system will be for gaming ....(gfx is gts 250)
 
but I doubt any AM3 setup can go above a 2600mhz HT link. I got 2400mhz but unstable, 2200mhz stable.
Well AM2+ can . . . just! . . . . don't see why AM3 can't? ;)

Up to 5200 MT/s : HyperTransport™ 3.0 interface for AM2+/AM3 CPU

I wondered why I was getting stability issues with the HT Link clocked much higher than 267MHz! :D


Click for stability . . . 18 hour "Blend"

ASUS M4A785D-M PRO (AM2+/DDR2)


thanks guys , this was a big help.
No worries! :)

Now are you any closer to upgrading your machine or?
 
I can hit 3000mhz HT link without any problems but saw no benefit from it in the benchmarks I ran (except everest bandwidth results) so I just put it back to default (2000mhz) & have left it there. If HT had much of an effect on performance or was a bottleneck I think my system would have shown it since cpu & nb are overclocked so much.
 
I can hit 3000mhz HT link without any problems
Stable? . . . if so great! :)

saw no benefit from it in the benchmarks I ran (except everest bandwidth results)
It's more for benchmarkers/benchmarking I think? . . . there was a little extra performance in the testing I did back in March here


CPU/MEM/CPU-NB/HT

If HT had much of an effect on performance or was a bottleneck I think my system would have shown it since cpu & nb are overclocked so much.
Post up your test results . . . would be interesting to see what you did? :cool:
 
There was an interesting article regarding HT overclocking and gains were quite substantial (Phenom II 1090T). Can't remember were it was though :(
 
Gareth170 thats what I found but the improvements were very small and would probably only give an actual improvement of 1-2 fps in games. I found it had almost no benefit in encoding which is one of the main things I use the machine for. I didnt see the point of putting additional strain on this part of the system for next to no benefit and instead aimed for higher cpu nb frequencies which give a much larger performance boost.
 
I wondered why I was getting stability issues with the HT Link clocked much higher than 267MHz! :D

I can hit 3000mhz HT link without any problems.

It might be possible to go as high as they state, but I doubt any AM3 setup can go above a 2600mhz HT link. I got 2400mhz but unstable, 2200mhz stable.

im good and stable upto 2400mhz, and it will run/game at 2500 but not prime stable. could be the northbridge though (also at 2500mhz). Frankly, i cant really be arsed with figuring out the absolute limits of the PC lately...

There was an interesting article regarding HT overclocking and gains were quite substantial (Phenom II 1090T). Can't remember were it was though :(

i guess an extra 2 cores would help fill the HT link more...

@ALL....(specifically including BIGWAYNE)

thingemajib gave a satisfying answer which i accept solves this query.

b), the HT transfer rate, which is measured at twice the clock speed, as it can make one tranfer with the rise and fall of the clock signal (just like DDR ram). Some AM2+/AM3 processors have a HT speed of 1800MHz, hence a transfer rate of 3600MT/s (Mega-tranfers per second).

thats the reason.....thanks guys , this was a big help.

OCUK ROCKS AND so do thier Members........

:D
 
If i may stray from the topic and ask another question, would it be wrong?

Based on your answers i plan to upgrade my PC at the end of this year.

Current:
Lga775 board dg41rq
e7400 core 2 duo
2gb x 2 ddr2 kingston value ram @800MHz


Planned :
AM2+ board (the link provided in the 1st post)(MSI)
a pii x6 or a pii x4

rest system will remain unchanged.

note that the system will be for gaming ....(gfx is gts 250)

From what I have read on this forum the X6 is overkill for gaming, I was advised to go for the likes of an Intel i7 930.

You have an £90 CPU which was well rated for mid level gaming machines which has never been overclocked running off a budget motherboard with PC-6400 and due to advice here you now seem to have went from wanting an overclockable 775 mobo to feeling the urge for a £220 Hex Core AMD CPU and new budget AMD motherboard to run with your PC-6400 and GTS-250?

My abnormal opinion is to get some value for money from the E7400 before making your mind up, you don't plan going Hex till the end of the year so why not get more out what you have?

Second hand P45 mobo at around £50.
Second Hand PC-8500 at around £50.
Sell your own mobo and PC-6400 and you may get around £40 back.
So for around £60 you could overclock the E7400 to around 3.8Ghz or 4Ghz with luck. Later when you decide to sell I don't expect you would loose much over the second hand prices you pay.

Or put the money you would have spent on the AMD 1090 and MSI mobo toward a new graphics card as this will probably make more of a difference than just adding six cores. Sell the old Graphics card to recoup costs.

Then you can probably sell all your 775 kit and go for the likes of an AMD Phenom II X4 965 with an AM3 mobo and DDR3? Or you could look for benchies showing the difference between an OC'd Q9550 P45 PC-8500 system against AMD PIIX4/AM3?DDR3 and weigh up the pound per performance difference at the resolutions you play?

Regardless, as you state you will be upgrading at the end of the year, I don't see any harm in improving the system you have for the meantime with a better motherboard, or even PC-8500 if feeling flush.
 
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feeling the urge for a £220 Hex Core
sastusbulbas,

I don't think bongas is intending to buy a "£220 Hex Core" . . . I think "maybe" he is considering a £150 AMD® Phenom™ II X6 or perhaps even a £111 AMD® Phenom™ II X4 :confused:

At the moment though he is just trying to understand his options and If it is "viable" for him to build an updated system using his DDR2 with an AM2+ mobo . . . . I can assure you his credit card is still in his pocket! :p

The topic here is really:

DDR3>DDR2 Performance Decrease...AMD Hexacore

so sadly most of your post above is off topic and belongs back in bongas original thread . . .

[LGA775] Board for Overclocking]
 
sastusbulbas,

I don't think bongas is intending to buy a "£220 Hex Core" . . . I think "maybe" he is considering a £150 AMD® Phenom™ II X6 or perhaps even a £111 AMD® Phenom™ II X4 :confused:

At the moment though he is just trying to understand his options and If it is "viable" for him to build an updated system using his DDR2 with an AM2+ mobo . . . . I can assure you his credit card is still in his pocket! :p

The topic here is really:

DDR3>DDR2 Performance Decrease...AMD Hexacore

so sadly most of your post above is off topic and belongs back in bongas original thread . . .

[LGA775] Board for Overclocking]

First of all Wayne read #1 by the OP, he clearly mentions the 1090T! At no point during the thread does opinion deviate from the 1090T opinion/performance.

Second as you state he is trying to understand his options, I personally don't think this is occuring, as usual on this Forum the advice is throw away the old and spend spend spend.

Thirdly, To quote Bonga! "If i may stray from the topic and ask another question, would it be wrong?" As my post is in reference to this I would have thought your opinion on off topic a little off the mark. The OP wanders off topic by posting #22 and posing the question based on his current and planned route. Not off topic.

Now how did we get here?

If I remember correct he was interested in a 775 mobo and possibly a Quad as he thought he needed it, and without working out how that requirement was deduced he was being told hold on forget 775 what about an AMD £80 Quad (for gaming would this give any gain over an overclocked E7400).

So based on the change of topic within this thread at point #22 and to quote: Note that the system will be for gaming.

Taking into consideration what he has, when he is thinking of upgrading, the lack of knowledge of what games are posing problems, and how many of those problems will no doubt be due to the bottlenecked CPU and what ever else the budget mobo he has is bottlenecking. I personally think the original OP is on a wild goose chase due to the "Upgrade bug" and AMD fanfare.

Maybe the OP should be asking these questions.

How much of a performance gain per pound will a decent second hand P45 motherboard give me with my current hardware?

How much performance increase will upgrading my memory give per pound?

Is my current GPU a limiting factor in gaming performance, will this benefit from 775 upgrades or become a bottleneck with an AMD X6 Phenom II system.

What is my budget and what can I purchase in my area of residence (he did state AMD cost more where he is located)

What upgrades will offer me better gaming performance per pound, for instance is Direct X11 important, will an overclocked E7400 with an ATI 5870 or X6 1090T with a GTS 250 be better, or a AM3/DDR3/GTX 450 and so forth, what will be available in 2011 etc etc.

I think considering his current components (we don't even know the rest of the system such as PSU etc) that AMD with DDR2 is a sideways step, and that moving up a notch with 775 is in keeping with his current system, it's a step forward which is not going to cost much and what he does spend on second hand components can be gained back when sold as loss will be minimal considering the imediate benefit.

So I still advocate either upgrading the core 775 components, or selling up and going Quad AM3/DDR3. If serious about gaming and want more performance go for i7 or Intel as it has been posted elsewhere that the i7 930 outperforms the 1090T in games but do consider the GPU performance and gains with these upgrades.

Why not post some benchies showing the performance difference between say the likes of an overclocked E7400 with a decent P45 motherboard and PC-8500 against the AMD equivalent you advocate and ask if he thinks it is worth the expendature?

You asked me in another thread if I was seriously asking him to consider spending £250 on legacy 775 (well no I wasn't but it does make sense as a cheap reasonable upgrade path for the owner of 775 kit), yet in some of the benchmarks posted such as here http://forums.overclockers.co.uk/showthread.php?t=18182722 we can see the likes of an E8400 and Q9550 still pulling respectable frame rates.

Quite simply overclocking his current system will yield a lot of performance for minimal outlay, I was in a similar position to the OP, went against the grain and upgraded my 775 kit, I bought a Q9550 instead of following advice such as going AMD with an X4 955 or this years i7, with new choices on the horizon why bother, and looking at the benchies and thinking of noticeable real world apps what have I missed.

He plays games, he runs an E7400 stock due to a poor motherboard and uses a GTS 250 GPU, upgrading his current motherboard until he settles on what he requires is a no brainer. The fact that he can upgrade to a legacy 775 Quad later and still be getting competetive benchies in comparison with AM3 Phenom II Quads shows there is still some life left in 775 and that an AMD Quad with DDR2 is nothing more than a sideways step taking him no further than upgrading his 775 kit bit by bit would.

;)
 
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I think the insults towards Big.Wayne can stop now guys.

If you are refering to my post :confused: then i wuold like you to know that i am refraing from taking any sides.......AND I DID NOT ISNSULT HIM.........but instead i appreciate his efforts to the OCUK forums as well as my previous posts.

@Big wayne......Thanks:D
 
The "insulting" posts were removed. (I actually saw no insults, I saw a small amount of banter and leg pulling).

. . . I can assure you his credit card is still in his pocket! :p

I'd quite like to hear how you got this info, telescopic lense? :p
 
Guys please donot argue among yourselves rather concentrate on the question which I have asked.

Newest Question:

WHAT IS THE best possible option for me to upgrade my current setup.

NOTES:
1)I can 'tolerate' my current CPU for a maximum of 1 year.
2)I am not happy with my CPU ,e7400 because whenever i play games such as Assasins Creed 2 , Dragon age Origins, even Splinter Cell Conviction; my CPU usage is 100%. For me its an anomaly. Further i did not even think of playong the latest games such as mass effect 2 , Command an Conquer 4 and some old ones like FSX and MW2 because these games use my CPU at 100% .
3)Buying a used board is not appreciated so is the rams but i might buy a used CPU.
4)It is crucial to note that the system which i will be upgrading to SHOULD NOT LAST longer than 3 years.(thats right i said "should not")In a more explainatory way, I would imply it as a cheap system sufficient enough to lasts for 3 years Only.(the lasting of the PC is refering to GAMAING ONLY........ONLY GAMING.)It is noteworthy that my current CPU is not sufficient for gaming.

MY BUDGET IS : POUNDS 180.

Remember price should be according to a 3 year gaming system only. ie After 3 years its gaming power becomes as my current PC's gaming performance . (which is bad)
 
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