@Tommo
3DMark is the best software you can use, It's heavily logged and there will be multiple scores from people with the same cpu/gpu so will give you a rough idea of whats achievable for your machine.
I just found your score on there website and looked at the detailed log.
Something looks wrong,
Your score is the lowest on the list with a CPU score of 7369... Closer to 10000 should realistically be achievable for you with a good motherboard and cooler. I'm also seeing that it thinks your clock speed can go up to 6ghz which makes no sense because this chips max out around 5.2ghz if you're very lucky, this could just be weird "glitch" but it's still worth going into the bios to investigate.
You don't need a new CPU, You just need to improve the CPU you already have.
Ram is gonna be a starting point (better ram=higher CPU score). They go hand in hand so always max out your ram, Stay away from those corsair kits.
Buy ram with the tightest timings, Mhz is not the important figure with ram... E.g 3600Mhz kits can easily be beaten by 3200mhz kits if the timings are better..(lower timings=lower latency)
1 ram stick (single channel) is 20% slower then 2 sticks (dual channel). dual rank (2x16gb) is also up to 15% on top of that.
So you need to buy 2x16gb 3600mhz c14 (c14 being cas latency=most important value)