Gigabyte X670 Aorus Elite AX without Eco Mode for Ryzen 7900XPerformance boost without power-saving settings
Gigabyte X670 Aorus Elite AX without Eco Mode for Ryzen 7900XPerformance boost without power-saving settings
You're exploring a new setup with your AMD Ryzen 7900X and Gigabyte X670 Aorus Elite AX. It's great you're looking for alternatives to Intel! Eco Mode offers good power efficiency, but it requires manual configuration in the BIOS or PBO settings. You might need to adjust the TDP limits there to control power usage. If you're unsure, checking the official AMD documentation or community guides could help clarify the process.
There’s no specific need to change the CPU ratio mode from All Cores to Per CCX. Each core typically handles its own frequency adjustments automatically, just like Intel does. AMD generally follows similar practices, so the difference isn’t significant.
Sure, I'll keep it concise. PPT should be capped at 65000 mW. EDC and TDC are set automatically, which is what I usually do as well. The Per CCX system implies the BIOS would apply varying ratios based on your input. It's a hassle to manage, but if you're up for it, fine-tuning per-CCX can boost performance noticeably—though in practice, adjusting all cores often yields better results.
If you're manually overclocking the chip, kind of. It improves performance ever so slightly in multi core workloads, and since the only time manually overclocking Ryzen CPUs makes sense is for competitive benchmarking that little bit extra performance can be useful. If you're planning on just running it in your main system though, by the time you get the system fully stable you'll end up with worse performance overall than if you just turned on PBO, and that setting shouldn't in theory do anything if you're just running PBO (though some motherboard BIOSes might take that as an indication that you want to disable PBO, so it's best to leave it on All Core). Each core can adjust its frequency individually, but the actual method is different with AMD than Intel. Intel has each core handle its ratio, so you can get pretty granular with how each core is running. AMD has a set of ratios that all the cores must be running in on a particular CCX, so while on Intel you can have the cores running at 5.4/5.3/5.5/5.5/5.6/5.4, you could only do something like 5.5/5.5/3.7/3.7/3.7/3.7 on an Intel chip. It's also not user controllable from the BIOS, if you want to go for single core benchmarks you have to do it through Ryzen Master or let PBO work. None of this matters if you just use PBO and set some limits. Those settings are only for doing manual overclocking, which with Ryzen 7000 doesn't give you any real benefit outside of competitive Cinebench scores.
Hey team, I revisited All Cores. For PBO settings, I’m missing the auto EDC and TDC options. I’ll have to decide what settings to apply. Also, I disabled Core Performance Boost since I prefer sticking to the original specs unless I’m doing stability tests with Prime or similar.
Core Performance Boost is incorrectly labeled by Gigabyte. It only lets the CPU reach the highest specified frequency. Without it, you're limited to around 4.whatever ghz. Also, the settings I used from PCWorld didn't work. It seems I might have missed something important—setting 142 watts isn't actually eco mode. When I ran Cinebench, the CPU consumed 140 watts. That doesn't make sense.
I checked listings for 88000, 75000 and 150000 CPUs from the PCWorld article. It matches what I see: running 90 watts on Cinebench For Eco Mode with the 7600X and 7700X. PPT cap is 88000, TDC 75000, EDC 150000. AMD stock settings suggest 105W for 142k, 110k for 750k, and 170k for 150k.
I discovered the reason behind it. The AMD power limits are misleading. That 65W processor actually draws 88 watts!
Check out the video to grasp AMD's method for determining power metrics and what you can anticipate with PBO.