Bad example. In BF4 Final Stand with Mantle FX9370 beats i5 4670k with a 295X2. Chances are someone with a cheap/weak CPU wants the best bang for the buck in BF4, and they will quickly realize a budget R9 270/270X or 280 with an FX CPU and Mantle is a way better deal than an i3+750Ti/760. The former system would win easily. In fact you can't buy anything new from Intel+NV for BF4 at the same price as an FX8000 OC+280 + Mantle and have faster performance in BF4 multi-player.
Also, not sure why people always keep talking about FX8000 when 9370 is $200, a competitor to i5. Those lower clocked 8000 series are well below $150, with frequent sales on 8320-8350 for $100-$130.
http://slickdeals.net/f/7423034-fx-8350-4ghz-processor-115?v=1
For most modern games an overclocked FX8000 or a stock 9370 will rip an overclocked 3258 apart, especially in Crysis 3, Metro LL, BF4 Multi-player. Actually FX OC can even outperform the SB i5's in BF4 multiplayer. Ok so with FC4, 3258 works but so what. There are so many games now where you lose 30-40% of the performance with higher end cards such as 290X/970 on a 3258. That means for next gen games you will soon become both GPU and CPU limited with the 3258 since you can't really upgrade beyond a 280/280X and take any more advantage of the GPU power.
The idea of buying a $350 next gen card with a $60 3258 is not sound. Also, I find it hard to believe someone is willing to buy a $350 GPU but can't spend $70-120 extra to step up to an i3/locked i5? 3258 is perfect for Blizzard style games which let's face it is a very popular % of all PC gaming. It's perfect for SC2, WOW, Hearthstone, Diablo 3 gamers.
A $115 FX8350 @ 4.7 Ghz will absolutely rape an overclocked 3258 in well-threaded titles which as of now is almost every modern AAA/popular PC game.
Here is recorded footage of 1.5Ghz 970 paired with an FX8350@4.7Ghz against an i5 4690K@4.8Ghz in AC Unity, all max settings with 4xMSAA:
https://m.youtube.com/watch?v=mYXPvkvNTbY
3258 shines for low threaded titles but for newer modern titles it's overrated/overhyped beyond belief. As I said before, it can't even outperform a
6-year-old i7 920@4.0Ghz in demanding AAA titles.