I think my PC is not performing well right now.
I think my PC is not performing well right now.
It's tough to determine the average performance of my setup. Most similar builds are using DDR5 or are brand new, which usually means better performance. I don't think the GPU is the problem—I have a 4090. It might just be a placebo effect from thinking my CPU should perform better, but I can't confirm because I don't have anyone to compare with since my build includes everything I've installed and under the same conditions.
Several games rely on the efficiency of a single master thread.
Execute the cpu-Z benchmark on your 12900K.
You should achieve a single-thread rating around 835.
CPU-Z Benchmark for Intel Core i9-12900K (1T) - CPU-Z VALIDATOR
Optimal CPU performance - 64-bit - February 2026
valid.x86.fr
By the way, my score is 831
Yeah, it's not great. You scored 794.4 on single thread and 10,874 on multi-threaded, which isn't ideal.
I'm using DDR4 3000 (and possibly a 3200 kit) according to userbenchmark. This setup is a bit lower than what most people achieve with a 12900K.
Better options would be DDR4 3600 or DDR5 5600+.
I plan to skip the overclock and check stock performance first, then reattempt it later. If results drop further, it might mean the overclock is actually harming things.
It's been a while since I really studied overclocking, as gains aren't as impressive now, but it's still possible to get good stats with bad performance.
With older Intel chips, pushing the clock too far from cache speed can hurt performance. These newer chips rely heavily on memory speed. Because of the many cores, you often need to adjust per core or manage efficiency cores to avoid overheating or keep performance cores strong.
I'm not sure what's causing poor single-core results beyond heat or power limits—maybe background apps?
It looks about the same; the outcome isn't much different.
Performance differences are minor, and those who like their scores boosted by overclocking often share updates.
Your computer might slow down if you run heavy tasks on the hard drives.
Switching any frequently used parts to an SSD—even a SATA SSD—can improve speed.
Just starting with the 3200mhz running at 3000mhz, I changed it to 3200mhz now—it wasn’t working before, so that’s why it was lower. Should I go for DDR5 5600 or DDR4 3600? Wouldn’t it really make a big difference or would it not be worth the price? My power supply is a Corsair TX850M 80+ Gold; would I benefit more from a bigger PSU or won’t that help much? My temperatures are high (70/ high 80s, low 90s under load, depending on the game), but I’ve noticed the 12900k tends to run hotter anyway.
DDR5 would imply a different motherboard, the value of which depends on your choice. Likewise, upgrading to slightly faster memory means DDR4 is still quite affordable at the moment. More power supply units don’t affect the rest of your hardware; only the CPU and GPU usage matters. As long as your system runs smoothly without unexpected shutdowns or crashes, it’s acceptable. I’d start by comparing your current setup to other systems with similar specs, checking 12900k reviews for DDR4, to see if you can match their performance.
I could, but it costs a lot of money, haha.
For cooler, I own a Corsair ICUE H100i Elite Capellix.