faster yes but a small %, now the true question : is it worth the price difference?
games aren't actually massively multithreaded for now but will it be true for the next gen?
4core 8 thread 8core 8 thread same fight even if outperformed by 10-50fps above 35fps a average user will not notify the difference between a i7-4960X and a FX-8350 but his wallet will.
not all gamer are hardcore bencher ... for instance my main rig can be outperformed (assembled from various 2nd hand component) but on the price/perf ratio its a winner (well i get it not everyone can be lucky as i am when it come to 2nd hand hardware

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Here are the Anandtech numbers from the review link I posted for the three CPUs in question. The rest of the data showed there was no significant difference between the 4670k, the 4770k and the 4960x:
4670k vs 6300 & 8350:
Grid (1080p, ultra)
4670 - 132fps
8350 - 92fps
6300 - 86fps
Total War (1080p, dx11 high)
4670 - 135fps
8350 - 79fps
6300 - 74fps
Tomb Raider (1080, ultimate)
4670 - 136fps
8350 - 134fps
6300 - 132fps
Sleeping Dogs (1080p, extreme)
4670 - 107fps
8350 - 78fps
6300 - 69 fps
Metro (1080p, dx11 very high)
4670 - 63fps
8350 - 57fps
6300 - 53fps
Bioshock Infinite (1080p, ultra)
4670 - 150fps
8350 - 105fps
6300 - 102fps
What those numbers show, and Dent1 fails to understand is that those games are all (with the exception of Tomb Raider) CPU limited. They used Titans to eliminate any bottleneck from the GPU so you could get a real world comparison of the CPUs. That is what a benchmark is Dent1, a way of proving categorically, without bias which part is better.
I never advocated using a Titan in a build, in fact I think it's idiotic to pay that much for a graphics card, especially for gaming. You must be a special kind of clueless if you think I was advocating using a Titan in a build.
Honestly, it isn't even worth responding to the rest of what Dent1 had to say, he clearly doesn't understand what I'm talking about. Look at all of the links again and please try to comprehend what the POINT is.
The synthetic benchmarks show you general types of tasks and how the CPUs perform. Single threaded is a correlation for gaming, Multi threaded is a correlation for encoding and other heavily threaded tasks. The Anandtech links are a real world test with actual FPS numbers from games the OP might play. Go ahead and tell me it isn't a significant amount of difference for 100 dollars.
Are you saying you wouldn't take 40-80fps in nearly every game you want to play for $100? LOOK AT THE NUMBERS. That review was from the Ivy-E launch barely a month and a half ago, it's current and proves two things:
1) Intel crushes AMD in gaming.
2) For gaming multi-threading and extra cores are virtually meaningless.
If those things weren't true then the AMD CPUs would have performed better and the IVY-E six core $1000 dollar CPU would have beat the $220 dollar i5. But it didn't, in fact in a couple of the games it LOST. A $1000 brand new Ivy-E 6 core extreme CPU LOST to an i5 that costs 1/4 the price.
Edit: I also don't appreciate being called biased for advocating using real performance numbers and not just price as the sole determining factor in making a purchase. It's insulting. I've stated several times now that I've built systems around AMD chips, I'm not a fanboy. I extensively research hardware before I build a system and I've spent literally months now scouring Anandtech, Techpowerup and other review sites for benchmarks and reviews. I advocate Intel *RIGHT NOW* because they are, for the money, CLEARLY the superior chipset. You cannot point to a single review or benchmark that shows that for GAMING, AMD is better than Intel. It has been a fact of their chip architecture for quite some time now.
I'm sorry that you're a fan of AMD or you're super budget constrained and are still of the opinion that games are largely GPU oriented when a shift has been going on for the past 3 years to a world where games are actually CPU bottlenecked. That didn't used to be the case, but as the games change so does the demands on the system (memory, CPU, GPU, etc). Right now we are in a time where Haswell is the superior (stock) CPU. Overclocking is a whole other can of worms, but Haswell as a platform (z87) is better for gaming.
Edit2: Look, I'm sorry if the way I talk rubs people the wrong way. I know sometimes I can be a little over-bearing, I swear I don't try to do it. I get really frustrated when people don't understand what I'm saying or refuse to acknowledge data I've provided when trying to debate or argue with me. If you think I'm wrong then give me some FACTS as to why I'm wrong or HOW I'm wrong. Don't just attack me without a shred of proof to back yourself up. I have gone to extreme lengths here to try to explain in detail WHY I'm right AND provide benchmarks with current numbers from several different resources to back that up.
I don't know any other way to be impartial than that. If the OP wants to buy an AMD CPU: FINE. It's his money and he can choose whatever he wants, it doesn't affect me at all. But the OP clearly came here looking for advice and I provided my opinion and a ton of information to back it up. I was systematically insulted and attacked for posting it and I got a little heated in responding and for that I apologize. It really gets me worked up when people give advice about how someone else should spend their money without considering the facts.
If the OP buys the FX-6300 and ends up CPU bottlenecked in 1.5 years and can't afford to upgrade, what does he do then? Do YOU care? I do. I know what it's like to not be able to afford new parts, I was poor for a LONG time. Not so long ago I had to borrow money from a friend to complete a build because my computer died and I didn't quite have all my parts bought yet. I got some bad advice on parts (back when I wasn't as knowledgable as I am now) and that machine ended up lasting me less than two years. I ended up having to scrape together money when I wasn't really able to afford it to get "upgrades" to tide me over until my next build and I ended up with less than I should have for the next build too. I'm just trying to make sure that whatever the OP decides it is fully informed so that *I* did what I could to make sure someone else doesn't have to repeat mistakes I've made myself.