Sure thing!
Alright, just for my information:
- Are you gaming on a 1080p monitor?
- Is your monitor limited to 60 Hz?
Assuming that that both of the above are true, I would recommend that you upgrade your CPU to a Ryzen 3600/3600X. Because:
- While I would normally recommend a Ryzen 5600x to most people playing COD Warzone, in your case your motherboard isn't compatible.
- As I alluded to in another post, COD Warzone is decently CPU heavy. I get it, you aren't running a lot of heavy programs, neither am I, and yet I have an 8 core CPU; the reason? Gaming.
- The Ryzen 3600 has 6 cores and 12 threads and is considered the modern baseline CPU for gaming. It has limitations to be sure, but cheaping out and buying an even older Ryzen 2600 is a bad idea because that CPU has even bigger limitations in clock speed and gaming throughput than the Ryzen 3600. This is basically the cheapest you can safely go to get a solid 1080p 60 fps (from a CPU standpoint at least).
As you probably are already aware, the "g" on your 3200g connotates that your CPU is what AMD calls an APU, a CPU with integrated graphics. While Intel has integrated graphics on most of their CPUs, AMD only ships it on a select few of them. The problem with this is that if you were to upgrade your CPU tomorrow to a Ryzen 3600/3600X, it would have no integrated graphics, so with no GPU you would have no output signal to your monitor. Thus in your case you should upgrade your CPU and GPU at the same time.
So now you know what CPU to upgrade to and want to know what GPU to upgrade to. The good news is that COD Warzone is actually not very demanding from a GPU perspective so normally not a whole lot of money would need to be invested in a good GPU to get decent performance. The bad news is that (as mentioned by others on here) now is a bad time to buy a GPU due to shortages and all kinds of other stuff going on driving up the price. Fortunately, there are decent used GPUs out there that aren't so marked up in price due to shortages that will serve you just fine. I'll list the Nvidia GPUs I would recommend to you (some are available new, some aren't; pricing will depend on your area). I'm not listing AMD GPUs because a) I prefer Nvidia due to better drivers, and b) AMD's inexpensive GPUs (the 570 and 580) are quite power hungry and run hot which makes them not a good fit for your inexpensive 550 watt PSU.
The Inexpensive choice: GTX 1060 6 GB or GTX 1650 Super 4 GB
The GTX 1060 6 GB is 2 generations old, the GTX 1650 Super is 1 generation old (last gen).
- Both provide a locked 1080p 60 fps Warzone experience with most graphical settings at high
The smart / little bit extra choice: GTX 1070 8 GB or GTX 1660 Super/Ti 6 GB
- The GTX 1070 is 2 generations old, the GTX 1660 Super/Ti is 1 generation old
- Expect 1080p 60 fps all the time even with everything set to ultra.
The futureproof / lots extra choice: RTX 2060
- It's still a last gen GPU, but Nvidia has only recently announced the RTX 3060 and hasn't yet announced anything cheaper than that yet.
- Not only does the RTX 2060 allow everything at ultra for 1080p 60 fps, its also capable of 1080p 100+ fps or 1440p 60 fps should you upgrade to a superior gaming monitor in the future.
- RTX allows you to experiment a bit with ray tracing if you want. DLSS allows you to run games that you normally wouldn't have enough power to run without turning down a lot of settings.
To sum up, while you do need both a new CPU and a GPU, you don't need a very powerful GPU to get the job done. At the same time, you don't want to cheap out on the CPU side of things because that'll make it hard for you to run warzone without stuttering and/or low fps.
Let me know if you have more questions.