Strengths: SO far this processor is amazing.

Weaknesses: havent found any yet

Summary: I choose this processor because of the large cache and speed. I wanted something that I could multitask with and not have to worry about delays. This is the first dual core processor I have ever used and so far its great. I do suggest that you use silcone when installing it. It seems to run a little hot, but all in all this is an amazing processor.AMD 64 X2 4400A8N-SLI motherboard(2) Raptor 74GB 10000RPM Raid 0Dell 24" MonitorThermaltake V5000A CaseHardcano 12 Fan controller Corsair XMS PRO 2GBeVGA GeForce 6600GT 128MB PCIe w/DVI/TV-OUT

Strengths: Dual Core64 bit

Weaknesses: Price

Summary: I am not using the heat sink/fan that comes with this chip so I can't commit on its cooling efficiency. Instead I am using the Zalman 7700-Cu. Definitely a fast chip. I multi-task all the time between compiling source code, debugging, running large databases, surfing the internet, and playing games. This chip doesn't cause a bottleneck for any of my applications. Expensive but worth it.

Strengths: its a high end processor at a reasonable price

Weaknesses: none from my vantage point, but for others its a matter of how extreme they are and the products they want

Summary: As I said in the weakness, truly there aren't any if you an enthusiate like myself. I am just begining to get into how computers work and from what I have researched, this baby is most likely as good as, if not better, than what most people want. Again, get this now, 9/13/05 is the time that I got it. If by the time you read this is already a years past, its still good for those needing a decent processor. This thing, hopefully won't let me down in the year to come, and I don't think I will have to expect any problems. ITs great for gaming and multitasking. I highly recommend it, and as I always say do your homework first, consider it, and I think you'll be happy. BTW, pricegrabber has been great at locating stuff for me. I go to manufacturers sites that still have the rediculous prices and find great deals to compare on PG.

Strengths: Extremely fast and stable.

Weaknesses: Heatsink w/box is a little loud.

Summary: I've had this processor running for 2 weeks now and I have been nothing but impressed. I have multiple applications running at the same time with very little slow down. Heatsink fan runs a little noisey from time to time.

Strengths: Dual Core, 64 bit, 939 pin, 2000MHz. processor interface, 2Mb. of L2 cache, L1+L1 what can I say?

Weaknesses: Zip

Summary: This 4400 is only one step off from the 4800 at 2.2GHz. compared to the 2.4GHz. offered by the 4800. Guess what? That difference is easily overcome with a light 200MHz. overclock if you even want it. That makes up the differences and makes the 4400's lower price very attractive. What is needed, for this Dual Core processor to run at full throttle, is a motherboard and components capable of using it full tilt. 64 bit OS and other software programs are also needed although 32 bit software is still accepted. Once you've picked up on this deal, you need to pick up on a motherboard with a 2000MHz. bus interface, the proper Bios, and the hotest compatible memory you can find within reason. Don't forget you want the better SATA drives (not run of the mill) and a 64 bit OS. That PCI Express card will also be necessary as the better boards will not offer AGP. Power supply? Well, just get one rated 400 watts or better such as Antec offers. A loaded system needs that extra power available to run smoothly and the 4400 needs just under 100 watts alone. Figure on spending over $1000 but under $1500 for a killer system using this chip that will take years to beat in OEM prices for the performance. What will you have? One screamin' fast system like mine if you follow my advice. This thing blew my old XP 3200+ system completely away. It's way faster, quieter, smoother while doing more, and shutting down running apps. to do DVD or CD burning has become non-existent for me.

Strengths: Dual core rocks and this is dual core done right. AMD really did right on this one.

Weaknesses: No games currently avaliable to take advantage of dual core cpu.

Summary: This is a great multitasking processor, but unfornately game developers aren't using this technology yet. If your wondering, each core is equivalent to a Athlon XP 3700, which is what your games will run at. The new games coming out soon are supposed to be multi threaded, but who knows when they will be released. I decided to use this processor for work (a lot of multitasking) and bought a FX55 processor for games until Multi threading becomes viable in the gaming community. This processor will not lag with multiple programs though.

Strengths: Multi-tasking, RC5-72, Games, Low-heat loading.

Weaknesses: Care with the OC, this model has too large a cache for much.

Summary: I got this CPU(s) since I have grown accustomed to dual rigs for a decade. The large cache(s) are made for chugging many apps at once and lots of open windows. Gamers who want to OC the CPU should loo

Strengths: Dual core, almost no waiting for hourglass

Weaknesses: none other than high price

Summary: Great processor at a fair price. I use a dual core pentium 830 at my office that isn't even close to as fast as this rig.amd 64 x2 4400512MBx4 Corsair XMS PC3200connect3D 256MB X800 PCIEbuilt on Giga-byte GA-K8N PRO SLIEncased by Thermaltake VA8000

Strengths: Speed definetly

Weaknesses: Unstable

Summary: I don't know what I have done wrong but I'm having a lot of trouble with mi AMD 64 X2 4400. I had a box working perfectly with an AMD 3500+. I just swap the CPU with the new AMD X2 4400 and with a new Fan (Zalman 9xxx). It started craching.I'have updated the firmware of the mother board, the chipset, fresh install of the OS.. Nothing. I'm still having a lot of unstability. I'm really disapointed about it...MB A8N-SLICPU AMD 64 X2Video 2* 7800 GTXRam 4GBHD 4 * Raptor 72 GB 10000rpm.

Strengths: FAST AS HELL, STABLE, OVERCLOCKABLE AT LEAST 25% if you have a water cooler installed. 64 bit/ 32bit fast compatible. Very , vEry good for games.

Weaknesses: NONE...

Summary: well i'm usint this processor for work and playing lastest 3d games, with my dfi lan party nf4 sli-dr with my 2 geforce 7800gtx 256mb each on sli, is awesome. i think intel must considering to change their entire plataform, cuz like i see the share market on processor is growing at favor or AMD. is a excelent job from AMD. for me INTEL SUCKS!

Strengths: This is the third fastest AMD dual core processor and by extension, probably the third fastest desktop processor you can buy.

Weaknesses: Produces a lot of heat.

Summary: I can't say this is overpriced. Ever since I bought it, I've been floored by the performance of this CPU. I have it in a A8N-SLI Deluxe and it churns through all my MATLAB and Mathematica programs with ease. As far as gaming, this will ensure that your CPU is not a bottleneck, even at lower resolutions and with many new games taking advantage of dual cores (Quake 4, Call of Duty 2 etc.) this excels at that as well. Cooling this may be the hardest thing since it essentially has 2 San Diego cores (2.2 GHz with 1MB L2 cache) and this is where I had trouble. My case fans which are controlled by the motherboard nearly always ran at full speed when this CPU was anything but idle. A better case would do this justice.It also might be the second best 'value' in the X2 lineup after the 3800+ (which has a lower clock and half the L2). If you're an enthusiast, also look at the dual core socket 939 Opterons like the 165 and 170 which have the same L2 cache and are quite overclockabe.

Strengths: Dual Core, supports 32 and 64 bit applications, 939 pin, with 1152kb + 1152kb cache operating at 2200MHZ

Weaknesses: NONE.

Summary: Dollar per dollar, this is the best processor that money can buy. I definitely recommend this processor if you want to multitask, use 64 bit applications, and don?t want to spend the big bucks.

Strengths: What a step up! Dual core, hypertransport, relatively easy to keep running cool (thanks to 90nm process technology), FAST.

Weaknesses: Price, but divide it by 2 and you get a pretty good "price per core."

Summary: Stepping up from an old Intel 2.4GHz P4, the Athlon X2 4400+ is a delight. I run several apps at a time and the multitasking performance of this CPU is exceptional. It simply plows through them. Whether I'm streaming audio to a wireless Squeezebox, downloading new Podcasts, playing TV shows, editing RAW images, burning CDs/DVDs, etc., this process manages to handle everything at the same time without slowing a beat.

Strengths: Speed, multitasking, features, 64 bit

Weaknesses: Game playing. At this point, I don't recommend this CPU if you are going to be playing games. It has horrible support for a lot of today's games.

Summary: I've had this chip since November, and I've tried to give both AMD and Nvidia time to fix the bugs, but I'm just sick of all my games crashing, running choppily, and having weird speed ups during gameplay. I've tried every fix on internet forums that are supposed to help my problems, and still nothing has worked. I installed this on a new computer, with a new install of windows. I installed both the AMD X2 driver, and the microsoft hotfix. I've tried lots of registry tweaks, and setting the CPU affinity. I've upgraded and downgraded to different NVidia drivers. NOTHING has worked. All my source engine games crash at random intervals ranging from 5 minutes to two hours. Games like Prince of Persia have moments where the game will speed up 2X so it looks like your playing in fast forward. Also, the sounds will play 10 seconds ahead of the characters (This is not the game's fault, because it didn't do this on my old computer). I'm not alone, because there are lots of people having the same problems, who all have X2 CPUS. I've even had problems running CPU intensive programs, like VMWARE. I've tried to fix it myself, because I love the CPU's performance when I'm not playing games. However, that's 50% of what I do with my computer, so it's not worth the headaches, and the waiting for a REAL fix, just to have a dual core CPU. Hopefully the next time I upgrade my computer, they'll have all this fixed, and I can finally enjoy the benefits of a dual core computer. Until then, I'm downgrading to a regular Athlon 64.

Strengths: easy install, fast processors, 2 cores

Weaknesses: pricey, but you get what you pay for!

Summary: I use this with an Asus A8N SLI premium motherboard. Have not had ANY problems. I am not an experienced computer builder, but I had absolutely no troubles constructing the computer around this processor. I used some type of Arctic Silver as a compound and did not experience heat issues (although of course this thing will run hot!) I felt this processor was a sweet spot between more expensive and cheaper processors. I'm glad I went with it, even if it was more expensive than I originally wanted to spend. I was able to use both processors, assigning tasks to both and increasing workflow. Since this is all new to me, I am still learning the full potential of this processor combined with the Asus motherboard. I did try some minor overclocking with good success, so I'm sure for more experienced users it will be great to go to even higher speeds. I look forward to a time when more software will more thoroughly support dual processor technology as I think it will tremendously increase efficiency. I expect this processor to still provide for what I need for a long time to come. I hope to experiment with video editing in the near future.