Intel Core 2 Quad Q9400 Quad-Core Socket 775 Processor

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very good product so much I bought another one

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This processor replaced an AMD Quad Core 9550. It blows that out of the water.

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Upgrading to this CPU, from a Pentium D, I'm very happy with the leap in performance. I noticed every aspect of my computer change fairly drastically... including gaming. I don't overclock it at all, as it doesn't need it, so you most likely won't need to either. And I highly recommend it as a great deal.

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I've been using AMD for the past five years, but decided this time to return to Intel and I am glad I did. The speed on this cpu is great, over clocking with the Asus P5N-D is easy and the CPU handles it well, stable and running cool.

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Just installed this cpu on an Intel DG31PR mobo and it works great. Nice upgrade from a Dual Core 2.2GHz

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Bought this one form my build and it fast. Highly recommended if it fits your budget.

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Bought this for a new PC build. Has been working flawlessly for 4 months.

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I upgraded from my intel 7300 dual proc to this intel 9400 quad and was very happy with the speed increase. It was all just plug and play after carefully reading the instructions. Go cod4

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Upgraded from an Q6600 Duo to this processor. Amazing difference.. Fast shipping, no problems Thanks...

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Not insanely fast, but not boooringly slow either.. it does its job well. I think it's Win7 that slows my system down..

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CPU works great. For fear of breaking my two hundred dollar MoBo, I gave up on trying to install the stock fan using the push pins. Instead, I purchased an equivilant CPU fan that uses a backing plate. Intels' main competitor has a far better way to connect a CPU fan.

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I bought this processor to upgrade an original Pentium 4 and I must say I am amazed by the performance. Used the processor with OCZ DDR3 memory and a Supermicro motherboard and had no problems enabling virtualization for XP mode with Windows 7. I wish I would not have waited so long to make the jump to the Core 2 Quad.

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Purchased for AVCHD video editing - proves adequate for this, but not spectacular. Should be considered minimum spec for this task. Otherwise very fast with all other apps running Win7.

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In the gaming world my old e8400 killed my sons phenom. you cannot go wrong with the Q9400.If you want performance go with INTEL.If you want dirt cheap go AMD. I have both, my intel's kill the amd in performance.you go cheap you get cheap.

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I upgraded my core2 duo to Quad 9400, fit on present mainboard (Asus P5B )and didn't have to change ram. Nice upgrade,performance boost in video encoding.

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I was planning on buying a different product but after calling sales and speaking with a representative, they advised of a better deal. I was weary at first, but it has turned out that this was a very good deal indead. Processor serves on a computer that is running Windows Server 2008 R2 with 8 gigs of ram. Product is worth the buy and far exceeds the purpose I was looking for. Great deal in my book.

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I upgraded my aging CPU with this. The MOB GA-EP45-UD3P recognized this right away with no input on my part. Great speed at a great price. Also shipped on the day I ordered.

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Very nice speeds, potentially O.C.able, nice for CPU demanding games. It also allows me to have a virtual machine running dual-core while my machine runs dual core. Very nice. Quick ship. Works nicely with a XFX 750I-SLI mobo. I truly recommend this CPU.

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I plugged this into a P5P43TD Pro Asus motherboard,OCZ3X1600 ram and off I went. My Homemade barebones kit runs great. A great deal.

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Got this little fella operating at 3.7GHz and playing all games at awesome framerates on max settings. Temps are nice & low and all done with the extreme air-cooling!

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Does what I expected it to do. The right product for me since I'm not a gamer. Put this into a new build (Gigabyte EP45-UD3P, 4g GSKILL DDR2, WD Caviar Blue 500g). Running Win7, Vista, Linux and XP on multiple partitions, with no problems on any. Product came three days after I ordered it. Thanks, Tiger Direct.

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I got this for my new gaming pc. Sadly the store had run out of q9550 so i had to buy this even thou i still recomend u buy the q9550 this is still a great CPU. Its not the best ocer and the fan is somewhat unsturdy. Its fast thou css 100fps tf2 80fps both games maxed out crysis warhead d.10 1440by900 no aa or af 40s fps but remember this i have lowly ddr2 at 1066 ram which underclocks the cpu by a lot highly recomended for budget gamer looking for a good quad core.

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Bought tree of these as upgrades from P3's. I7's & I5's are still a bit pricy for not a great deal of increased performance. These run great. I do a lot of video rendering for my classes and it zips through them very well.

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Upgraded from an E7200 Duo to this processor. Amazing difference.. Fast shipping, no problems..

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unless your an animator or something this is the one to buy, scores real close to a 9550 the cache only helps for extreme 3d apps works great for gaming rig i built myself