You don't have something dumb in your cfgs, do you?

Its not just tf2, and i tried removing my config, and it was still laggy.

Drivers up to date?

What are your CPU temps?

This is the way I did it, I don't know if you can do it without.

http://www.cpuid.com/softwares/cpu-z.html

Also updating drivers in GeForce Experience as David said.

Yes i checked that

uh this program says 92 Celcius

lol

did you plug your monitor into your mobo instead of your graphics card?

i may have done this before

also 92 celcius is really hot

you should consider repasting asap. did you remember to plug your cpu fan into your mobo?

Make sure mat_queue_mode is set to -1.

Fix your CPU temps!

Tcase for the 4770k is 72.72°C:
http://ark.intel.com/products/75123/Intel-Core-i7-4770K-Processor-8M-Cache-up-to-3_90-GHz

Your CPU cooler is very likely not mounted properly, high temperatures like these can permanently damage the CPU.

http://www.cpuid.com/softwares/hwmonitor.html

Yeah 92 is way to high, assuming you're probably just idle right now. You could have a defective heatsink or didn't apply thermal paste properly (I think default CPU cooler's usually come with paste preapplied though so that shouldn't be an issue if you're using the default one).

off topic, but why use -1 over 2? mat_queue_mode is the command for multicore rendering, right?

i didnt make it myself

take a look in your case right now and check if the fan on the cpu is running. if it is then you should consider taking it off, cleaning off the thermal paste with alcohol on a cotton swab or ball, and reapplying no more than an uncooked grain of rice sized strip on your cpu. don't worry about spreading it around, just place the fan on and make sure that you've got it completely centered as it comes in contact with the paste.

http://puu.sh/a2Fql/303b06bde0.png

God, turn off that thing quick and don't use it again until you repaste it!

lol wtf?

Holy shit dude turn off your computer ASAP.

Do yourself a favor and throw out the stock CPU fan. I remember when I set up my new rig, I had the same problems as you. Buy an aftermarket cooler or water cooling and some quality thermal paste.

even with a stock cooler temps shouldn't be 100C, something else is wrong

This, probably poorly mounted stock cooler.

if it's a prebuilt machine i'd be curious as to whether or not the tech that built it remembered to remove the sticker from the bottom of the stock cooler that protects the paste until you're ready to install it. or maybe if it wasn't a cooler that came with paste on it already the tech just slathered paste everywhere

Well i just opened it and the cooler was like hanging a bit -_- so i pushed it in the right place and it is 40 Celcius when im idle now, seems to be fixed ? :) Hope it is, thanks a lot guys

Enjoy playing tf2 on 300 frames.

if you're using the stock cooler i'd highly recommend buying an aftermarket one. i'd personally recommend this:

http://www.amazon.com/Phanteks-Heat-pipes-Premium-Patented-PH-TC14PE_BK/dp/B007ZZE63A/ref=sr_1_1?s=electronics&ie=UTF8&qid=1404866591&sr=1-1&keywords=TC14PE

wow i'm amazed you didn't fry your cpu

how can something last that long at 100c???

what the actual fuck

literally boiling water