I'm planning to build a PC with a 5070 Ti graphics card, but due to the high prices on RAM, I'm considering using my existing Corsair Vengeance 3000 MHz CL15 RAM and adding another 16GB set, which could save me a lot compared to buying 32GB of DDR5. Does this make sense? If so, what CPU and motherboard should I choose to pair with the 5070 Ti? Just to let you know, I primarily play graphically intensive games like Witcher 3, Cyberpunk 2077, and Red Dead Redemption 2 on a 34-inch 3440x1440 monitor.
6 Answers
To really gauge if this is a good idea, compare the price difference to the performance difference you might see. If you're looking at used parts, it might be an easy choice, but not everyone goes that route.
Don't forget about Intel options! The 14400(F), 12600K(F), 12700K(F), or 14600K(F) combined with a DDR4 B760 can compete well against AM4. For AM5, consider CPUs like the 5700X or 5800X3D on a B550 motherboard.
If you're going for a CPU, I'd strongly recommend the 5800X3D. You might run into slight bottlenecking at 1440p, but it should handle 4K pretty smoothly. If possible, consider getting faster RAM, like 3600 MHz, to reduce any potential latency issues.
The AM4 platform is still solid for gaming. You could use CPUs like the 57/58/59 series, but remember not to mix RAM speeds—your slower sticks will drag down the overall performance.
I've recently paired my 3600X with two different 16GB RAM kits for a total of 64GB. The performance hit was barely noticeable, and the extra memory was a huge plus. Just remember, using mixed RAM speeds will slow things down a bit, but in gaming, you won't really feel the difference unless you're benchmarking!
For gaming specifically, you can't go wrong with the 5800X3D if you're matched with the RTX 5070 Ti and aim for at least 32GB of DDR4 RAM for best results.

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