Will it do?

[lovingGamer]

By OC-ing Sapphire r9 270x can it reach power of the 280??

[Archangel1994]

Yes it can but you need to be lucky in the silicon lottery. If your chip sucks you will not come close. If you have a good chip then you can come pretty close. Make sure you have good airflow though because OC'ing can increase temps quite hard all of a sudden.

[lovingGamer]

Yes it can but you need to be lucky in the silicon lottery. If your chip sucks you will not come close. If you have a good chip then you can come pretty close. Make sure you have good airflow though because OC'ing can increase temps quite hard all of a sudden.

silicon lottery

 

WHAT?! i don't understand sorry, and Chip in Sapphire r9 270x will be chip form Sapphire r9 270x, what are you saying???

[SirBobson]

silicon lottery

 

WHAT?! i don't understand sorry, and Chip in Sapphire r9 270x will be chip form Sapphire r9 270x, what are you saying???

I don't understand it entirely but the 'silicon lottery' is a term used to describe the chance of having your chip made of a nice piece of silicon ( better temps etc.) or a not as good piece ( won't be able to overclock much)

 

Edit: this is not the best explanation

[Archangel1994]

silicon lottery

 

WHAT?! i don't understand sorry, and Chip in Sapphire r9 270x will be chip form Sapphire r9 270x, what are you saying???

The silicon lottery is a term used to describe the quality of silicon in the chip. The higher the quality silicon the lower voltage required for high speeds and usually lower temps

[nj4ck]

Well, lets look at the benchmarks:

 

Battlefield 4: (avg. FPS @ultra 1080p)

 

R9 280: 47

R9 270X: 42

 

Bioshock Infinite:

 

R9 280: 65

R9 270X: 55

 

Crysis 3:

 

R9 280: 43

R9 270X: 37

 

Skyrim: (w/ high res texture packs)

 

R9 280: 94

R9 270X: 90

 

(source: http://www.bit-tech.net/hardware/graphics/2014/05/19/amd-radeon-r9-280-review-feat-xfx/1)

 

Thats an average of ~12% more performance with the R9 280. Based just on that I'd say yes, an overclocked R9 270X could be able to compete with an R9 280 in some cases. You may get a bad chip that just doesn't want to go there, but if you're just a tiny bit lucky you should be able to reach similar levels of perfomance (also depending on airflow and cooler, obviously). Nevertheless, if you absolutely need that extra performance, I'd recommend spending the few extra bucks and getting the R9 280, especially when you consider that the 280 can be overclocked as well and will almost reach 280X-levels if you're lucky.