6 core at 4ghz for only $140 sounds a little bit too good to be true. i don't keep up with hardware until it's time for to upgrade myself, so hopefully somebody else can go deeper with this

FX processors aren't really optimized for gaming, but are primarily for servers IIRC

I don't know anything about building a PC myself, so I asked some friends for help. That was what seemed like the best build to me, built by a friend.

Very decent budget build, nothing too fancy. Don't expect too much from performance and be ready to upgrade in maybe ~3 years, but other wise it's not bad.

not bad you'll be getting 120fps i think maybe dipping but if you want a good upgrade path you might wanna go for an i3-2120 and upgrade to an i5 in the future. the motherboard will be different though. other then that solid.

Would this build work with a 120Hz or 144Hz monitor? I may or may not substitute one of those in for the current monitor if I can find a good price or something.

Intel is better for tf2 iirc. FXs are good for streaming and a lot of other games (see teksyndicates review of it versus the i5, did pretty well in crysis and stuff)

Edit: that mobo is super cheap, you should get at least a 970 or 990fx for the fx 6/8 cores

You can get the Samsung 840 120GB SSD for $20 less than that OCZ one.

Edit: Also, no HDD or are you going to use one from your current PC?

I have an external and a laptop, mostly gonna use this rig for gaming, not for much else

Here's something I came up with, includes a 144hz monitor, $70 over budget. (If you have a micro center nearby)

http://pcpartpicker.com/p/1kMo0

Lol I'll be living in Alaska, so most likely no micro center. Shipping will also most likely be a bitch, but that's already sorta been factored into my budget. Looks like a solid build though, thanks for the help element.

It's alright... A 7990 is kinda overkill if you are trying to stay in a 800$ budget.
Although it all depends cause honestly with AMD it runs good but if you are going to be playing games besides source or anything of that nature any game that runs better on NVIDIA is going to be a big hassle for you, my friend runs borderlands 2 at 50fps high on a GTX 460 and my friend runs it min everything at 40 with 2 7850s.. Soooo it is a good build but if you are looking to play more than just Source or optimized games for AMD you might wanna go with something different..

You should read that again, it's a 7(7)90 not 7(9)90

-edit-

sent you this earlier on steam

http://pcpartpicker.com/p/1kPhk

kept the CPU it's alright for what you want

changed the video card to a 7770 GHz Edition since I am pretty sure you will not be playing much other than TF2 + it doesn't cost much different than a regular 7770 it's also $50 less than the 7790

CPU cooler is different, as I am uncertain of the original coolers quality from your OP

Samsung 840 series is better or just as good and cheaper than the OP

The Rosewill Capstone-450 is probably the highest Quality 450W PSU on the market. The quality in this PSU far beats the 500watts even if it costs more.

144Hz monitor because you're playing a FPS competitively basically it

removed the keyboard as their is no point in a $70 keyboard in a build at this budget given the needs you have.

If you only want to play tf2 and not stream, there really isn't a good reason to go for an amd cpu :7

The price maybe?
The Haswell Dualcore haven't been released yet and the cheapest Quadcore costs 50 bucks more than the fx-6350.

If all you're playing is TF2, you could go with a 4350, honestly. I'm running on a 4100 (2 steps down?) and I get a solid 133 constant in 6s, around 110 fps in that benchmark test from a while ago.

Well not to be rude, but my 2500k almost doubles that fps :/ And if you're only going to play tf2 and not anything else you don't really need anything but the cpu. I don't understand why you would go for an ssd etc if that means you'll get a significantly weaker processor. Just my 2 cents tho.

tf2 does not require more than 132 fps, without a 120/144hz monitor. There is no reason to get a monster CPU when you can get something that works fine for the given application, and costs less.

I updated the OP with a different build that a friend suggested. It's $800 on the nose and includes a 144Hz monitor rather than the mechanical keyboard.

Also, I don't need a ton of storage on this computer since I have a large external and a laptop, and I don't plan on using this rig for much except to game.

You could also get the PSU that I had in my part list, it's $20 less if you get it in time of the mail in rebate, or the same price as that Rosewill one, while still being semi-modular, which can help you out with cable management. Though if you want to do some heavy overclocking I would go up to 500w or something.

Again, that motherboard looks really cheap. Its micro atx and 4+1 vrm so you wouldn't be able to overclock very well. About the cpu, the 6350 is just the 6300 overclocked and overvolted stock, and with a higher tdp. The 6300 will be better if you're overclocking

Get rid of the ssd and get a better cpu. Solid states are nice but you'll get more out of that pc with a better cpu if you want it to play tf2.

I'd rather drop the SSD and build a better base for the PC, you can always get the SSD later. SSD is a luxury item and for this kind of budget I don't think it's a good idea, you're better off spending the money on better GPU like 650 TI Boost (better than 7770)
http://pcpartpicker.com/p/1kVF4

sounds perfectly reasonable to me. just because a cpu has a higher core count and faster clock speed doesnt mean that its necessarily better than a cpu with less cores and a lower clock speed. For example an intel i7-3770K has only 4 cores and a clock speed of 3.5 ghz but it is much faster than the amd cpu in this build.

Well considering tf2 is much more CPU intensive than GPU intensive, if I drop the SSD, I'd rather put that money into a better CPU. What would you guys suggest for that option?

Never mind.

How is hyper threading at all the same thing as the module cores amd fx uses? lol, good logic there bud. The i7 has less cores than the fx6300, it does have hyper threading but that doesn't help in gaming at all.

No, this is wrong.

The Intel CPUs do not actually have "logical cores", they report that they have logical cores which means that the OS can and will run threads on those logical cores. One core runs the threads of two of the cores the OS "thinks" it has. Hyperthreading basically doubles some parts of the core so two processes can be prepared for execution at the same time so as soon as the process that is currently running on that core has to wait for something (not going into the technical reasons), the other pre-prepared process gets executed instead of just waiting.

You can disable Hyperthreading via the BIOS/UEFI and voilá the intel CPU your OS only displays the 4 existing cores of your intel CPU.

AMD's CPUs are consisting of modules. Each module has two 128bit ALUs and two 128bit FPUs that can also be used together to process 256bit instructions. Intel Haswell on the other hand uses 256bit units.

tl;dr
Intel: each pair of cores shown in the OS = 1 core with some parts doubled
AMD: each pair of cores shown in the OS = one module = 2 cores with some parts shared