Have r9 270, how much of an upgrade is a 960?

The R9 270 is a 7870 rebrand while the R9 280 is a 7950 rebrand, it's also not really worth the upgrade. I'd say keep saving your money and aim for a GTX 970 or the upcoming AMD equivalent, R9 290 or 290x would also be a worthwhile upgrade if you can deal with the heat and high power requirements. The 960 isn't a big enough of a jump to really justify the upgrade.
 
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Agreed
 

kyomagi

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i have an fx 6300, if i get a 290, would i be bottle necked? also i have a 500w psu, would that be good enough?
 
You may have to overclock your CPU a bit to get the most out of something in the R9 290 performance range, though it would depend on the games you play, less CPU intensive titles wouldn't be much of a problem. A 500 Watt PSU may not be enough unless it is a very good quality unit, the Hawaii GPUs are very power hungry and I personally wouldn't put them into any system without at least a good quality 550 Watt power supply or better, especially if you're also going to throw a CPU overclock into the mix.

You may be better off just saving for the GTX 970 or waiting to see if AMD's new cards are a little more power efficient, as going with the 290 may also have the added cost of a new power supply as well.
 
The GTX 960 sits in a weird position between the R9 280 and the R9 280x on the AMD side and between the old GTX 760 and GTX 770 on the Nvidia side. It is faster than your 270 by a not insignificant amount, but it's not a huge jump (maybe around 20-25% faster than your 270 depending on the game), and it also only has 2GB of VRAM, which may be a problem in future titles unless you're playing at rather low resolutions. You can buy it if you want, but I personally would save up more money to get a larger upgrade and a more futureproof card, as I don't see the 960 aging particularly well.
 
The 960 will generally perform better than the R9 280 under most circumstances. If you're playing at extremely high resolutions, or are playing a game that uses a lot of video memory (more than 2GB), then the 280 might be better in those situations as it won't run out of video memory and have really choppy performance as a result.

The bus size is irrelevant when you are comparing two different brands of GPUs using different architectures. Nvidia got away with the really narrow bus on the 960 because they have managed to make transfers between the GPU and video memory far more efficient with their Maxwell architecture. AMD's architecture isn't nearly as efficient in this regard (not surprising considering the R9 280 originally came out in 2012 as the Radeon HD 7950) and needs a wider bus to get the same amount of data transferred. You shouldn't really be comparing specs like that unless you are comparing two different cards with the same architecture, eg. you could compare a 280 and 280x in that way, as they are the same architecture, and the only difference between them is shader count and clock speeds.
 

kyomagi

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Ok so i found a r9 280x for the same price as the 960, im gonna jump to that. Will my 6300 be an issue? Also, i have an inland gold 500w PSU, should i be good on the power? This system will also run a SSD and a 500gb HD.

thanks
 
The 280 is the equivalent of a 7950 in this chart. You should be able to get a free copy of the Witcher 3 with the GTX 960. That's a PhysX game, just one of the graphics quality settings you can enable on the GTX 960, that would be unavailable on the AMD cards.

http://www.techpowerup.com/reviews/Gigabyte/GTX_960_G1_Gaming/28.html
perfrel_1920.gif
 

kyomagi

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What is the difference between the G1 and the regular? The one im looking at is a SSC card.

That chart basically is saying the card performs pretty similar to the r9 280? What difference will the extra gig or the triple bus give the 280 over the 960?