I recently bought an RX 9070 XT Pure at a good price, but I'm currently pairing it with an i7-11700KF and 32GB of DDR4 memory. In some CPU-heavy games, such as Helldivers 2 and possibly Hunt: Showdown, I've noticed what may be a CPU bottleneck. My monitor runs at 1440p and 170Hz.
I'm considering an i5-14600K for around €250 because it supports DDR4, which would let me keep my existing memory instead of paying for a complete DDR5 upgrade. However, I've heard about stability and microcode problems affecting some 13th- and 14th-generation Intel CPUs. Are those issues resolved for new processors? Would the 14600K be a worthwhile upgrade, should I consider another Intel i7, or would an AMD platform be a better choice? Alternatively, is it smarter to keep the 11700KF for now and wait for prices or newer platforms to improve?
3 Answers
A 11700KF can still handle a powerful graphics card well, particularly at higher resolutions. With a 4070 Ti at 4K, for example, the GPU usually becomes the limit before the processor. At 1440p and 170Hz, the CPU matters more, but it depends heavily on the specific game and your target frame rate.
I’d avoid upgrading based only on the assumption of a bottleneck. Monitor GPU usage, frame times, and CPU limits first. If performance is smooth and the GPU is usually busy, there’s no urgent reason to replace the processor.
The performance gap may be smaller than expected, especially at 1440p with an RX 9070 XT. Compared with a much faster modern gaming CPU, an 11700K is behind, but the 14600K is not a massive leap in every game. Keeping DDR4 also reduces the 14600K’s performance somewhat compared with using DDR5.
Unless you regularly play CPU-heavy games at very high frame rates, spending around €250 plus the cost and effort of changing the motherboard may not be worthwhile. Your current system could be perfectly adequate until you’re ready to move to a newer DDR5 platform.
The i5-14600K is a reasonable option if you definitely want to keep your DDR4 kit. The 14th-generation stability problems were addressed through BIOS updates and revised microcode, so a new chip with an up-to-date motherboard BIOS is much less concerning. I wouldn’t expect DDR5 prices to suddenly fall enough to make waiting worthwhile by itself.
That said, first check whether the 11700KF is actually limiting you. Look at GPU utilization and CPU or individual-core usage in the games where you notice the issue. If the GPU is still close to full utilization, an upgrade may not make much visible difference.
I mainly notice it in Helldivers 2 and maybe Hunt: Showdown, although it isn’t a huge problem yet. I was mostly considering an upgrade now in case CPU prices rise later.

That makes sense. I’ll probably keep the 11700KF for now and move to an AM5 system later when the overall platform cost is more reasonable.