How can I compare cpu's?

[CallMeLoukas]

How can I compare cpu's? With mhz? Its not that I'm looking to buy one. I want to find a good gpu and when I search for benchmarks every video have a different cpu. I have a8 7650k and I'm looking for a graphics card that will run games like iw bo3 bf1 etc in at least 45fps. I have 200 dollars atm. I have 8gb ram

 

[corroded]

Start by reading the articles here...

 

[Smartrior]

How can I compare cpu's? With mhz? Its not that I'm looking to buy one. I want to find a good gpu and when I search for benchmarks every video have a different cpu. I have a8 7650k and I'm looking for a graphics card that will run games like iw bo3 bf1 etc in at least 45fps. I have 200 dollars atm. I have 8gb ram

You dont need to compare CPU-s. There is cpu to cpu testing for that in different benchmarks. The thing is, you can buy amd rx 470 GPU, I think the best choice right now.
But Im not sure your CPU can open all the potential of this GPU.

 

[geofelt]

A quick and dirty way is to look at the passmark numbers.
For example, your A8-7650K has a passmark performance rating of 4931 and a single thread rating of 1423.
https://cpubenchmark.net/cpu.php?cpu=AMD+A8-7650K&id=2489

By comparison, a i3-6100 which is an excellent mid-range gamer has a passmark number of 5414 and a single thread rating of 2102.
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i3-6100+%40+3.70GHz

Most games can use only 2-3 threads and most are dependent on the performance of the single master thread.
You buy a APU for the excellent integrated graphics.
But, there are no real good upgrades, particularly for a gamer.
If you install a superior discrete graphics card, you will have thrown away the big advantage of the APU.
Then, you are left with a relatively weak cpu. Most games depend on only a few fast cores.
The possible upgrades are to more cores, but few games will use more than 2-3 cores so 6+ cores are not very helpful.
Bottom line.....
What you get with a APU is what you will live with forever.
Virtually any gaming pc will use discrete graphics.
Why the difference if clock rates are similar?
It is because the intel architecture does more work per clock cycle.

And.. to answer your implied question, $200 buys you something like a GTX1050ti which is decent for 1080P gaming.

To get an idea of what you might expect, look at this review of the i3-6100 which includes comparisons with your A8-7650K and a variety of graphics cards.
The GTX770 is probably the closest comparison set of tests.

 

[davissima]

in my opinion there are a lot of ways to compare cpu's like proccesing speed, game compratible, price. power consumption,overclocking power etc...
since you only have 200$ budget i would recommend you a amd rx 470(about 190 dollars) because the gtx are a more expensive.
i would say the fps difference would be huge.. your budget is too low
the minimum requirements is amd rx480 8gb ddr5 but the rx470 4gb ddr5
and gtx is the double of price

 

[Ecky]

I'm going to digress and recommend the 1060 3GB, my reasoning being that nVidia's drivers are less CPU heavy. Although performance is similar on high-end CPUs, AMD GPUs perform worse on low-end CPUs because of much higher software overhead in their drivers.

 

[CallMeLoukas]

Thanks to everyone!