I had the crashing problem also, the game would start to load, it would then give me an error (it still does!), and then the game would crash right after it started.
I had to mess with it a LOT to find a set of drivers and such that would work. The EA staff I live chatted with, BOTH of them, were useless in helping me. I went from windows 8.1, to 10, then down to 8 before I found a set of drivers that worked.
Basically, I use windows 8 now (which I'm cool with). I use windows 8, because in 8.1 the Catalyst Control Center stops working, and you have to download * drivers that just cause the game to crash.
What you want to do, is get new video drivers, and then set everything to maximize performance for both video cards. You know you have good drivers when it doesn't crash the game. But, you'll then have a problem of it not recognizing your keyboard/mouse. There again, the EA live chat people were WORTHLESS. Once you get to that point, the fix is easy....
Start the game, the video will start playing, at that point, alt+tab out, and open your device manager (right click the bottom lefthand side of your desktop on the start, or in windows 8, where the start would normally be, it gives up a menu, select device manager). At that point, select Display Adapter, then double click your radeon video card. Now, go back into the game, and your game will work. I don't know why, but after days of trying over 50 drivers, and 3 different versions of Windows OS's, that was the ONLY way I was able to get it to work.
So, now, your goal is to find a driver that will allow it to start. This is a SOFTWARE problem, pure and simple. PvZGW2 does NOT like Intel/Radeon combos software.
I have a Intel HD 4000 card, and a AMD Radeon HD 8730m card. For those, or close to that, you could try windows 8, and then look for these drivers....
Intel: 9.17.10.2867
AMD Radeon HD 8730m: 9.0.12.0
Out of about 50 driver attempts, 50 per video card, those were the only ones I found that worked, but ONLY on windows 8. Again, windows 8.1 kills the catalyst control center for the radeon, making it impossible to maximize the performance.
But, this is a SOFTWARE PROBLEM, NOT a hardware problem! Don't believe the haters.