Dual core confusion

[lalx]

Hi,

I am up to a new upgrade and have been leaning to and X2. That was until i saw a review on an overclocked 820D which did about 4.2Ghz!! This is supposed to do 3.9 on sock cooling. Thats an amazing overclock from 2.8 stock. I always overclock as I beileve in getting the best out of what I have.

Most of my applications are 3D and Video editing/Compositing based. I am not much of a gamer. I have searched high and low for a head to head comparison of an overclocked 3800 vs 820. The only one that i saw on Hothardware was gaming oriented - did not compare video encoding apps. Games are usually not tuned for dual core and useless for my applications.

Does anyone have a suggestion to make?

 

[the splat in the hat]

My dual core 4400+ can run 16 bit games 32 bit games and 64 bit games, its very reliable, awsome speed, and as for the bullsh@t that dual cores cant help out a system NOW in GAMES, well , you can even set affinity and choose what core YOU want to run your game and/or video editing etc etc......
The 4400+ is two cores @ 2.2 each , lve seen them clocked to 2.65 over and over without heat or crash problems.
I encode FRAPS at 40 and 60 fps to sata hard disc from bf2 at 1024x768, its the FIRST pc that has ever done FRAPS at such a high fps and so smooth , l sh@t you not recording on this dual core is as SMOOTH as just playing , none of my other pc's can even come close...
I own an intel 2.8 with an x800pro in it and it records at 17 fps in bf2 at 40 fps, my 3200AMD x800pro is at 25 to 30 fps in bf2 , my fx55 x800xt is around 35 to 40 fps, but this dual core just smashes ALL of them for performance under such massive loads, all recordings by FRAPs are done at 1024x768 in bf2.

I dunno about intel dual right now but I know about AMD's duals are just crankers , the most incredible cpu's lve ever seen, and AMD are talking triple core for 2006 !
wow cant wait !

 

[lalx]

Hi,

I agree that AMD rocks. The question is about the overclock and bang for the buck factor. I am not sure how well the overclocked Intel dual stacks up the overclocked AMD. Since it (intel) would go up more than 60% higher overclocked - it looks interesting ...

 

[Unkno]

You can only overclock the intel to that speed with phase cooling. Even if you do managed to overclocked at that speed, an AMD X2 overclocked would still beat it in gaming. If your mainly doing encoding and editing, the difference with the overclocked intel and amd shouldn't be too much (correct me if i'm wrong on this). I would still recommend you getting an AMD since it would be much easier to overclock with (won't have to worry about the high temperatures of the intel) and it should perform similar to the intel.

 

[Griswold]

I think the question really is, how much do you have to invest into cooling to keep a 820D from throttling at that speed - if its even possible under the given circumstances. Could hurt that bang for the buck ratio.

You know, 4.2GHz looks flashy, but wont do much good if it only can idle at that speed but is forced to throttle when loaded. And that seems to be the very problem people have encountered here when OC'ing those dualies to the extreme.

 

[biostud]

I'm thinking the 4.2Ghz is on the new 920D (or whatever they're called) 65nm chips, definately not the current roomheaters.

 

[themusgrat]

Don't get the 4200 or 4400 or anything but the 3800, unles you need the L2 cache, because they all mostly clock the same- to about 2.6, and no further. Plus you save a lot of money. That's why I am getting an Opteron 165 that some people can clock to the same plus the L2 cache, plus I got it w/ 3 yr. warranty and shipping for 290. And the AMD will beat the Intel any time, as long as they're mostly in the same class. At that high, they are definitely using phase. An AMD on phase would do great, better than the Intel. Its all in what you're comparing it to.

 

[IntelUser2000]

http://www.abxzone.com/forums/showthread.php?t=98282&page=11

We reached 4.656GHz with the Gigabyte G-Power cooler and were able to complete all of the benchmarks three consecutive times. We did get into WinXP at 4.8 on air and took a couple of snapshots with CPU-Z but the system was not stable enough to run any of the 3DMarks. It is a toss up between the two coolers as far as the temps but at 4.6GHz and under full load we were at 58c at 1.4875V. We reached 4656GHz with the Gigabyte G-Power cooler and were able to complete all of the benchmarks three consecutive times. We did get into WinXP at 4.8 on air and took a couple of snapshots with CPU-Z but the system was not stable enough to run any of the 3DMarks. It is a toss up between the two coolers as far as the temps but at 4.6GHz and under full load we were at 58c at 1.4875V.

At 3.4GHz we were at 1.3125V normal, idle at 32c, and under full load at 44c on the Asus board.

 

[IntelUser2000]

That's the non-EE version of Presler BTW, the D950 at 3.4GHz.

 

[stevty2889]

4.2ghz on an 820D is extremely lucky, and would require some very good cooling. My 830D won't overclock at all, and runs just below throttling temp on air at stock speeds, runs at 47c under load at stock speeds on water. My 4200+ X2 on the stock AMD heatsink is overclocked to 2.618ghz, and hits a max of 51c under load. Even at stock the X2 was faster than the pentium-d at everything, and overclocked it doesn't come remotely close. The 9xx series look to have some potential, but aren't out yet, and would need ~4.3-4.4ghz to compete with the X2 @2.618ghz.

 

[Viditor]

Originally posted by: lalx
Hi,

I am up to a new upgrade and have been leaning to and X2. That was until i saw a review on an overclocked 820D which did about 4.2Ghz!! This is supposed to do 3.9 on sock cooling. Thats an amazing overclock from 2.8 stock. I always overclock as I beileve in getting the best out of what I have.

Most of my applications are 3D and Video editing/Compositing based. I am not much of a gamer. I have searched high and low for a head to head comparison of an overclocked 3800 vs 820. The only one that i saw on Hothardware was gaming oriented - did not compare video encoding apps. Games are usually not tuned for dual core and useless for my applications.

Does anyone have a suggestion to make?

1. If you're doing 3D and editing professionally, you should NEVER overclock...period!
2. You are able to overclock both Intel and AMD, and both will clock up relatively the same amount (on a percentage basis).
3. The heat of an overclocked Netburst chip will be more than double that of the a similar AMD overclock.
4. In either case, the performance of the X2 will be vastly superior...

 

[lalx]

Originally posted by: Viditor

1. If you're doing 3D and editing professionally, you should NEVER overclock...period!
2. You are able to overclock both Intel and AMD, and both will clock up relatively the same amount (on a percentage basis).
3. The heat of an overclocked Netburst chip will be more than double that of the a similar AMD overclock.
4. In either case, the performance of the X2 will be vastly superior...

I work freelance and hence would like to extract as much juice as i can. Thanks for the views. I think it looks like i am going X2 then!

 

[Viditor]

Originally posted by: lalx

I work freelance and hence would like to extract as much juice as i can. Thanks for the views. I think it looks like i am going X2 then!

I'm a freelancer myself...the problem when you overclock is that you greatly increase your chance for a badly rendered frame or two, which as I'm usre you know can really ruin your whole day!