Is the fx8120 really got 8 cores or is it like hyper threading on intel processors?
And personally I feel the chip is messed up here. My gut says it spends too much time "in 256bit mode" and not enough doing two separate 128bit work. There is also the issue of the reduced front end compared to PhII. The front end is also horribly small.it contains two 128-bit FP units which can be combined to form one 256-bit FP unit
It's the same issue, yes, but because so much of Bulldozer's processing power is tied up in its core count you can't just dismiss the issue. The fact is that Bulldozer is affected much more severely by poor multithreading than Sandy Bridge or Ivy Bridge, which is why it gets absolutely destroyed in single threaded applications. Clock for clock, Bulldozer is the slowest chip on the market. Yes, there's a perfectly good reason that Bulldozer runs slower than it should. Knowing and stating this reason doesn't make the chip any faster, though.The problem that 8 core processors have is that there are only a few applications which can utilize that many cores, the same issue that affects the i7 and its multithreading capability.
Glossing over the fact that while both have their strengths and weaknesses, SNB/IVB have a lot more strengths and a lot fewer weaknesses than Bulldozer. Basically the only thing Bulldozer actually does really well is highly parallel workloads that involve no floating point calculations. Those workloads are almost nonexistent outside servers (which is funny, because the BD server chips are even farther behind than their desktop chips), which is why the chip fares so poorly in so many benchmarks, and does well in so few.There are a number of things that Bulldozer does better than the Intel cpus and vice versa.
You neglect to mention that the reason it's only a few FPS behind is because neither CPU is running at full speed. In reality the Bulldozer chip is running under a higher load, consuming more energy and putting out more heat to perform the same amount of work. When you remove the GPU bottleneck, Bulldozer falls very, very far behind. If your only uses are gaming and web browsing, I can't help but think you're wasting your money buying anything more powerful than a Phenom II. You just don't need the CPU speed.However, this is not true. The difference is usually a few frames per second. For example, in this review the FX is only a few FPS less than even the Ivy Bridge
No, Intel is just plain generally faster, not limited to benchmarks. Many of those benchmarks that you dismiss are actual applications that people use every day. They just happen to have highly repeatable results, so they're also great for comparing the relative power of chips.Is the Intel i5/i7 faster than the AMD FX cpus? Generally, yes, but only in benchmarks.
If by "most cases" you mean Facebook and video games. In almost anything that can actually make use of the processing power without some other bit of hardware getting in the way, SNB/IVB stomp Bulldozer into the ground. The only time Bulldozer wins? Massively parallel integer exclusive workloads. Also known as server workloads.In most cases you are not going to be able to tell the difference between the two in a real world setting.
And the 2500k can easily do 4.9-5.1, and remember, the 2500k gets a lot more done on each clock as well. I fail to see any point to be made for Bulldozer here.The 8120 can easily do 4.2-4.4 ghz and up to 4.7+ The 8150 is easier to push to 5.0+ ghz
Nobody is saying the 8120 won't work. In fact, you can find a post of mine earlier in this thread saying that the 8120 is good enough for what the OP was asking about. In debate, this is known as a "straw man" argument, and generally indicates that the debater doesn't have a valid point to make, so they have to misrepresent their opponent's argument in order to make one.contrary to popular demand for Intel, the 8120 will work just fine and only uses 20 watts more than the Intel solution
Nope, no need to exaggerate anything. Sandy Bridge/Ivy Bridge are simply much better processors than Bulldozer. The only thing Bulldozer has going for it is being marginally cheaper. I'm of the opinion that if you don't need the performance of Sandy Bridge, you also don't need the performance of Bulldozer, and should get a Phenom II instead.people love to blow the story up, kinda like this fish I caught one time, I swear it was 200 lbs bass. Biggest fish in the world, swallowed a man whole.