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Overall Comparison Overclocked. E6400 vs. Pentium D 805

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January 1, 2007 5:22:05 AM

I'm comparing an overclocked E6400 dual corehttp://www.tomshardware.com/2006/10/10/cheap_thrills/ to an PentiumD 805 dual core also http://www.tomshardware.com/2006/05/..._41_ghz_cores/ .

Also I intend to go with watercooling.
Here's the Pros and Cons:

P4 805D(DUAL CORE ALSO)
PRO: Pentium 4 805D 85 bucks.
PRO: Pentium 4 805D OC's stable to 4.0ghz watercooled.
CON: Older P4 Architecture
CON: Much greater power useage

P4 C2D E6400
PRO: Newer architecture does more work efficiently
PRO: Less power usage
PRO: Article is misleading, can potentially overclock more, as it was being used with a pre-retail testing chip.
CON: Max stable OC watercooled was 3.3ghz
CON: 200$ price tag

Basically what I'd like to know, if someone can help me or direct me to an accurate comparison of these two processors, is how much of an advantage does the newer E6400 architecture hold over the monster 4.0ghz overclock on the pentium 805D? Were looking at a roughly .7ghz difference.

These two processors really have my eye right now for the backbone of the new system I intend to build. My budget is going to be month to month, but right now It's safe to say I'm willing to throw down a max of 450 for cooling, mobo, and chip, less being better as its going to be a gaming computer and ill need money for a gpu and some quality ram to OC as well.
January 1, 2007 5:49:56 AM

Get a E6400, that 805 article was published a month before the C2D's where available, theres no reason to get a P4 unless your working with an insanly low budget, and you already have a water system to cool the thing. You'll be much happier with the E6400, its just a better cpu.
January 1, 2007 5:56:08 AM

Quote:
Get a E6400, that 805 article was published a month before the C2D's where available, theres no reason to get a P4 unless your working with an insanly low budget, and you already have a water system to cool the thing. You'll be much happier with the E6400, its just a better cpu.
On top of that, 3.2GHz is fairly routine with E6400's, whereas 4.0GHz is a crap-shoot with D805...even with decent water. :wink:
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January 1, 2007 6:02:17 AM

The E6400 can definitely OC higher than in the article. Hell, mine's up at 3.4, and I've seen others up at 3.6 or 3.7, all on air. I've had mine up to 3.6, but it was getting a little warm.

But I have a crappy (probably none-too-stable) PSU (Ultra X-Finity) which I'm replacing with an OCZ GameXStream 700W (got a good boxing day deal), and a Zalman 9700 (pretty good) that I'm replacing with a Tuniq Tower 120 (cream of the crop of air cooling). Not that I expect to get insanely higher than I already am, but it's fun, y'know?

People have taken the E6400 to 4+GHz.
January 1, 2007 6:15:06 AM

e64 owns 805.
January 1, 2007 6:26:21 AM

You WILL get better performance out of a core 2 6400 WITH the stock heatsink (providing you have good ram of course), than by overclocking the 805 with watercooling. As you have said though, you want watercooling so go with the 6400 imo. I just think the 805 will dissapoint you in the long run, not to mention much higher power bills :wink: .
January 1, 2007 6:34:51 AM

the e6400 stock is prob better than the OC'd 805.
January 1, 2007 6:40:18 AM

There really is no comparison to make. The E6300 utterly destroys the D 805. If you have the money to buy the E6300, you should. I might suggest that you do wait two weeks and purchase the E4300 though. Since you're already planning to overclock, it should be much easier with an E4300, plus you'll save at least ten bucks.
January 1, 2007 6:41:18 AM

Sounds like the Core 2 Duo processor is a better bet, does anyone have recommendations for the cheapest C2D mobo+chipset/cpu/ram for heavy overclocking? taking into account ill probably be spending 100-200 on watercooling everything.

EDIT: Read up on the e4300, ill be saving up and holding off untill this comes out, looks like the best Overclocker under a reasonable price, probably the best overclocker under 300 bucks. Looks like it'll be a matter of getting a good mobo now.
January 1, 2007 7:09:34 AM

Quote:
the e6400 stock is prob better than the OC'd 805.


lowest stock c2d(e6300) can kill any p4 or pd
January 1, 2007 7:18:02 AM

Quote:
Sounds like the Core 2 Duo processor is a better bet, does anyone have recommendations for the cheapest C2D mobo+chipset/cpu/ram for heavy overclocking? taking into account ill probably be spending 100-200 on watercooling everything.


Indeed. A 3.3GHz C2D will absolutely destroy a 4GHz P-D. No contest.

http://xbitlabs.com/articles/cpu/display/core2duo-e6300...

As the article shows, even an E6300 @ 2.94GHz slaughters a PD 945 @ 4.2GHz. Now take 5% off the P-D scores and add 10% to the E6300 scores and you'll see what kind of asswhoop the C2D will give the PD at 3.3GHz vs 4GHz. :lol: 

As for the cheapest mobo/CPU/RAM combo for watercooling, I suggest waiting for the upcoming E4300. It will cost $163, a bit cheaper than an E6300, but the best part is that it has a 9x multiplier, and thus doesn't require super high FSB and memory speeds to achieve high clockspeeds.

The cheapest 'good' board for overclocking is the Gigabyte 965P S3, for around $110 to $120. RAM, any DDR2-667 will do for the E4300. 9 x 367 will give 3.3GHz, which would only require a slight overclock of the RAM to DDR2-734 speeds. Almost all DDR2-667 should overclock 10%, but if you want to play it safe DDR2-800 is the way to go.
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