Intel Core 2 Duo E6300 & E6400: Tremendous Value Through Overclocking
by Anand Lal Shimpi on July 26, 2006 8:17 AM EST- Posted in
- CPUs
Final Words
If it weren't for AMD, we wouldn't have Core 2, and if it weren't for Core 2 then we wouldn't have affordable Athlon 64 X2s. Right now is one of the best times to purchase a new processor that we've seen in a long time -- assuming current prices hold and that availability of Core 2 Duo chips is reasonable in the next week or so. If you've been running a single core processor and are finally looking to make the jump to dual core computing, there's little reason not to at this point.
The processor landscape has been changed once more thanks to AMD's extremely aggressive price cuts. The Core 2 Duo E6300 is a better performer than the X2 3800+ but is also more expensive, thankfully for the E6300's sake it is also faster than the 4200+ and the 4600+ in some benchmarks. Overall the E6300 is a better buy, but at stock speeds the advantage isn't nearly as great as the faster Core 2 parts. In many benchmarks the X2 4200+ isn't that far off the E6300's performance, sometimes even outperforming it at virtually the same price. Overclocking changes everything though, as our 2.592GHz E6300 ended up faster than AMD's FX-62 in almost every single benchmark. If you're not an overclocker, then the Athlon 64 X2 4200+ looks to be a competitive alternative to the Core 2 E6300.
The E6400 finds itself in between the X2 4200+ and X2 4600+ in price, but in performance the E6400 generally lands in between the 4600+ and 5000+. Once again, with these 2MB parts the performance advantage isn't nearly as impressive as with the 4MB parts (partly due to the fact that their native clock speed is lower, in addition to the smaller L2 cache), but even with AMD's new price cuts the Core 2 is still very competitive at worst. If you're not opposed to overclocking, then the E6400 can offer you more than you can get from any currently shipping AMD CPU - our chip managed an effortless 2.88GHz overclock which gave us $1000 CPU performance for $224.
There are two potential concerns with building a budget Core 2 Duo system. The first is availability, and hopefully we will have a clear answer on that subject in the near future. The other is motherboard cost. The ASUS P5W-DH we used in this article is currently the best overclocking motherboard we've seen for the socket 775 platform, but at $250 it is anything but cheap. We have seen quite a few of the P965 motherboards that can also overclock the budget Core 2 chips to reasonable levels, with prices hovering much closer to $140. Unfortunately, none of those boards can support SLI or CrossFire at present.
If you are simply interested in maximum processor performance, P965 with any of the Core 2 Duo parts is going to be very fast. Gamers on the other hand are probably going to at least want to think about SLI/CrossFire, as typical gaming settings will be GPU limited with just about any current single GPU. That means they might need to pay more for an appropriate motherboard, especially if overclocking is a primary concern. We're also waiting to find out how nForce 500 for Intel does in the overclocking arena; at present, there's definitely concerns about whether or not the NVIDIA motherboards can reach the high FSB speeds that are required for overclocking everything but the X6800.
The E6300 and E6400 can easily overclock to E6700 and Core 2 Extreme X6800 levels, though the smaller cache does limit performance a bit. That being said, our overclocked E6300 was able to equal and in all cases but one outperform AMD's Athlon 64 FX-62. In fact, in quite a few benchmarks, the overclocked E6300 is essentially out of reach of anything AMD can offer with their current K8 designs. At $183, the value here is tremendous, and if you're willing to overclock the benefits don't get any clearer than that.
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Igi - Thursday, July 27, 2006 - link
After reading this and previous Core2 review there are still some questions I would like to be answered. In both reviews many games and standard apps were tested, but I was really hoping to see a review where some software development applications would be tested (MS Visual Studio 6 and 2005, Borland Delphi 7, 2006) on new platform.Currently I’m working on project with several million lines of C++ code and it takes quite some time to build the whole application regardless of distributed compiling. During the development I have to test new code, therefore I have to build my own intermediate version on my workstation. While the compiling process can be distributed the linking process can’t. Therefore single treaded performance is still the most important.
I remember reading somewhere that more than 5 million copies of MS Visual Studio 2005 Express were downloaded in a few weeks after the release. This means the SW development community is quite large and you shouldn’t just ignore it. You can find several free large C++, and Delphi Pascal projects on SourceForge.
I also haven’t found a decent review on the net where Solid Modeling CAD/CAM applications (Solidworks 2006, ProEngineer Wildfire 3.0) were tested either on Woodcrest or Core2 platform. I know it’s difficult to test applications you don’t know anything about them, but a few basic tests like: model rebuild times, feature build times would be enough.
Several years ago when Johan was still publishing reviews on aceshardware web-site some of the reviews included EDA software. Millions of users around the world are using EDA software to develop hardware. Basically I’m also very interested in a review where apps like Xilinx ISE, Modelsim, Synplicity Synplify, PCAD, Specctra Autorouter, Hyperlynx and many others would be tested on new Core2 CPUs. I remember the days I bought P4 with RDRAM just because Modelsim run so much faster on a computer with high bandwidth memory interface. Several years later I bought A64 3000 computer because it was able to run Xilinx ISE (place and route of a large FPGA project) 200-250% faster than P4 3.2GHz.
Probably Core2 CPUs will excel in all apps, but I would really like to see the numbers. I don’t care who wins, Intel or AMD. Developers in a company where I work get the machines I recommend them based on the past experience, the knowledge I gather on review sites like AT, forums and newsgroups.
Anand, don’t let this site to become just another average “shoot-em-up games” test site. Once in a while, put together a review of apps mentioned above or similar running on new CPUs and professional users will be grateful.
One last thing, I remember more than a year ago in one of the reviews it was said that we will soon see a review of professional graphic cards (Quadro, FireGL). Are we going to see this review anytime soon?
Gary Key - Saturday, July 29, 2006 - link
Please email me. :)
AtaStrumf - Thursday, July 27, 2006 - link
Damn you Anand! You're making me regret my recent, admittedly cheap, X2 3800+ purchase. These cheap Core 2s really seem worth the extra wait for cheaper mobos, and the mobo instalation hassle, which was a major reason I decided to go with the X2 (getting lazy lately). The swap took like 5 mins.But no, I'm fine thank you. This will be fine once I fugure out why I'm getting random reboots and overclock the hell out of it,... right?
Great review BTW. Too bad some thick skulls can't comprehend it.
duploxxx - Thursday, July 27, 2006 - link
well i must say the whole article is full of crap and idiot comparing benches oc'ed versus non oc'ed.but finally you are getting the idea hot to start a review and how to formalize the final words... altough the the low end core e6300-e6400 might be slight better performers the do cost more if you want a decent mobo/proc combo...
but these oc against stock is stupid, at least you should add oc'ed 3800 and 4600 to the list before you post this whole article and guess what a 149$ chip clocks eassily
from 2000 to 2650 with minor changes. same as an e6300 and others would do.
one more thing ever tought of just not running 1 on 1 benches but actually stress the system in some fine multitasking... then again put a chart up for compare... will be interesting to see except for the intel marketing bulldozer......
i'll give you a hint how it looks like... bashed core 3.0 versus k8 2.6
http://techreport.com/etc/2006q2/woodcrest/index.x...">http://techreport.com/etc/2006q2/woodcrest/index.x...
Guuts - Thursday, July 27, 2006 - link
I'm sorry, but did you even read the whole article? Or any of the previous comments where the writers explained why there were no overclocked X2s?I'm not going to generalize and say that ANYone that reads this and similar sites already knows the overclocking capabilities of, for example, the 3800+ X2, (which can fairly easily reach 2.6GHz on air)...but I know I sure knew that fact quite well by now, and when I was reading the article, I just substituted the 5000+ X2 results as the "overclocked" 3800+ because that is the results they would have come up with.
So yes, the 3800+ will clock up to 2.6GHz (5000+ speeds), as will the e6300/e6400, and you can compare this very well in the graphs even without truely overclocking an actual 3800+ CPU.
No need to say the article is full of crap and idiotic when you didn't bother to read it carefully, or because it came to conclusions that you didn't like.
Vinnybcfc - Thursday, July 27, 2006 - link
I suggest you read the article 1st a 3800+ can only obtain about 2.8 max if your lucky; guess what they had a AMD 2.8ghz processor in there listatenza - Thursday, July 27, 2006 - link
I have just one question: How is it possible, that a 39% overclock of the E6300 results in a 53% performance increase in the Rise of Legends benchmarks?Anyone got an idea? Please, share it with me ;-)
OcHungry - Thursday, July 27, 2006 - link
It's final. There’s no ATI for conroe-no crossfire, no chipset, nothing, nada.Nvedia's SLI is up in the air, and most probably will not happen.
As I said before, You can buy an AM2 mobo+cpu+2 cheap SLI vid card, for less than $450 and no Intel set up can beat your gaming machine considering. High end? wlet it be 4x4.
E6300 are gouged to $295 (mwave.com) and a $250 mobo to be able to overclock the way AT is suggesting.
This is my formal request to AT Management to revise this review to reflect what is available for conroe and please this time show us the AM2 cpu's overclocked, instead of hypothesizing everything (including availabilities of mobo and chipset), and what's the cheapest gamer's (so called enthusiast)setup.
Gary Key - Thursday, July 27, 2006 - link
You probably should check the news section before making this kind of statement. ;-)
"SANTA CLARA, CA—JULY 27, 2006—NVIDIA Corporation (Nasdaq: NVDA), the worldwide leader in programmable graphics processor technologies, today announced that many of the world’s leading system builders have elected to launch new enthusiast gaming Intel Core 2 Duo-based systems exclusively with NVIDIA SLI technology. The Intel Core 2 Duo processor combined with an NVIDIA nForce4 SLI X16 or NVIDIA nForce 590 SLI or 570 SLI-based motherboard and one, two, or even four GeForce® graphics processing units (GPUs), has already proven to be an unbeatable combination in terms of system level and gaming performance. This combination is earning early accolades from leading publications, such as Maximum PC magazine, which selected an Intel Core 2 Duo processor-compatible motherboard based on NVIDIA nForce 590 SLI technology and dual GeForce 7900 GTX GPUs for their 2006 Dream Machine cover story. ™"
OcHungry - Friday, July 28, 2006 - link
Well, there was no news on Nvedia’s SLI when I posted my reply. I am glad Nvedia has come to Intel’s rescue.But I am not too optimistic about this announcement. It’s kind of late in the game, and by the time those boards are shipped, AMD Is showing off the K8L. Even if K8L is not due till 1Q 07, enthusiasts will have to think twice pouring out $300 on a conroe SLI ready mobo.
Soon AMD will release the 4x4's that will cost less than $1k (according to AMD) which is faster than any conroe system. But speculation aside, let’s look at what is available today and how much will cost: A good overclocking conroe board costs $270 compared to $120 AM2 boards.
An E6300 + mobo will cost around $500 (to be able to OC FSB to 400mhz). With that much money you can buy http://www.mwave.com/mwave/viewspec.hmx?scriteria=...">A64 4200+http://www.newegg.com/Product/Product.asp?Item=N82...">motherboard+http://www.newegg.com/Product/Product.asp?Item=N82...">1gig of ram+http://www.newegg.com/Product/Product.asp?Item=N82...">Vid Card.