Gigabyte 270X overclock

[migas]

 Howdy! I've recently watercooled and overclocked my CPU, same thing applies to the GPU. Although, I've seem to hit some sort of "barrirer" when it comes to improving benchmark scores.

I own a Gigabyte Radeon R9 270X 2048Mb, it's core and memory come factory overclocked at 1100MHz and 1400MHz, respectively. I have succesfully increased those frequencies to 1175MHz and 1470MHz (And lowered temps!!!), but any more than that seems to not make a (huge) diference or crash. Have I hit the card's limit? Any tips for regarding the best frequencies?

 By the way, where can I find/make a waterblock to liquid-cool it? (If its worth it of course).

 

PC Specs:

AMD FX-4300 Black edition Quad-core. (Default is 3.8GHz I run it at 4.1GHz);

Gigabyte Radeon R9 270X: 2GB version;

Gigabyte 990FXA-UD3 Motherboard;

8Gb DDR3 at 1600MHz;

Corsair VS650 PSU.

[EMENCII]

@migas
overvolt it?

[TheRandomness]

@migas

overvolt it?

Basically this, if you stay at stock voltages you'd need a perfect chip to get anywhere with overclock.

[migas]

Basically this, if you stay at stock voltages you'd need a perfect chip to get anywhere with overclock.

It's at +20%, upon forther testing, I belive I've found the "sweetspot" at 1180 on the core and 1484 on the memory