This configuration doesn't achieve the claimed maximum speeds.
This configuration doesn't achieve the claimed maximum speeds.
Hello. Here are the build specifics: Gigabyte X570 Aorus Master with BIOS F33i, G.Skill Trident Z Neo 4x16GB @ 3600Mhz CL16 and XMP activated. AMD Ryzen 9 5900X paired with Corsair H100i RGB Platinum Seasonic Focus Plus, 850W EVGA GeForce GTX 680 (reference). The GPU shortage is a real issue. Based on the details, my CPU should support 4.4GHz multi-core and 4.8 single-core. When I run Cinebench R20, it shows 4.15 to 4.2GHz multi-core and 4.6GHz single core. No overclocking or underclocking is happening. XMP is enabled, PBO is set to Auto (it’s either on or off). I’ve installed the Ryzen chipset drivers, reset the CMOS, etc. Temperatures stay below 67°C during Cinebench load. Someone here might have a suggestion? Did I miss anything? In the meantime, I’ll try turning off PBO. EDIT: Disabling PBO didn’t help much. It seems XMP turned itself off...? I managed to boost my score by 100 points in Cinebench. Still struggling to reach 4.4GHz all-core.
Yeah yeah. I did. I re-enabled it when I saw that it just used the base 3.7GHz clock.
Alright, I've got this. The main boost feature kicks in when the system is idle. Checking HWInfo64 will show you how each core eventually reaches around 4.8GHz. It usually happens for a brief moment or two, not very long. That’s why you really want all-core performance now. PBO and go work well, XMP also helps. You don’t need to stress too much about single-core speeds—most games only use one core these days, and you’ve got enough epeen for those that do with an underclock like 2GHz, haha.
Alright, I completed that and it finally hit 4950.7 Mhz: That’s solid. But I’m still puzzled about why my Cinebench score doesn’t match the benchmarks. I’m around 500 to 600 points behind. I managed 8169, but I’ve seen scores near 9000. For single-core, I was probably 10-20 points off. I guess that’s normal. What surprises me is the huge gap in points like this—especially since it’s my first AMD CPU and I only used Intel before. My previous machine was a Core i7 950. Still, it’s a massive improvement overall.
Nice. When it comes to measuring performance, there are many factors to consider. You're close enough if you're aiming for a decent result. If you're keen on maximizing results, you'll need to go beyond the basic PBO and XMP configurations. The operating system plays a role—minimize background applications. You can disable Explorer by pressing CTRL and Shift while right-clicking the taskbar, then selecting "exit explorer." Higher resource usage from processes and memory will negatively impact your score. Turn off everything and try again. This should help you improve. On the hardware side, focus on lowering memory latency and boosting frequency wherever possible. Your score isn't the only metric; it's just one part of overall system performance. At least it won't be limited to a single test.