5900x PPT format, TDC and EDC specifications
5900x PPT format, TDC and EDC specifications
I stick to the minimal stable per-core numbers for the optimizer and leave the rest unchanged. My fans run at full speed at 63°C to help keep temperatures under 70°C. That setting pushes me past 22,000 in Cinebench—slightly better than last time. If your cooling is solid, increasing PPT, EDC, and TDC could let the CPU perform higher under load, but since I have an air cooler, pushing it to 180W+ quickly makes me over 70°C and only marginally improves R23. Maybe next winter I’ll open the windows for a cooler day and see how it affects things, otherwise these settings are my best bet.
I operate at 200 ppt 130 tdc 180 edc with fans running at 60. For applications like OCCT achieving 4700-4750 for an hour, R23 performs around the upper 23K range, near 24K. I skip per-core metrics since Windows doesn’t rely on that approach. At least not in a win10 scenario. I adjust all core settings to -30 +200.
Using those configurations on my machine, OCCT Large, Variable, AVX2 maintained a steady 4.7GHz across all cores for 15 minutes and stayed at a comfortable 58°C. That's decent performance. My Cinebench R23 scored 22,883 in one test, which may not look impressive but it’s due to temperatures spiking up to 85°C quickly. Power draw hit nearly 197W. Clock speeds dropped noticeably after throttling. It was clear in the test results—speed felt much lower than before. Honestly, gaining another 800 points in R23 would require a significant jump in power use and heat, which isn't feasible with my setup. I’d prefer a cooler processor or better cooling solutions to approach even higher speeds.
I adjusted the settings using the PPT 140 TDC 95 EDC 113 Curver Optimiser at negative 15. Performance improved over the standard options. Running my PC in Power Saver while doing idle tasks like browsing or downloading seems to work well. The Balanced value changes during gaming or editing, but I haven't noticed stability problems unless I push the settings further.
Focus on maximizing performance while keeping temperatures minimal. This approach uses curve optimization to run a slightly lower core speed for an additional 100–200 MHz boost by lowering heat output. Alternatively, choose cooling solutions that provide sufficient thermal margin, allowing you to increase the PBO limit and potentially gain more than 200 MHz.
Sorry to necro, but what insights did @maka0 come up with? I aim to replicate your approach by adjusting TDC/EDC/PPT below normal levels to balance power savings and performance. Primarily focused on single-core efficiency for gaming, though modern titles often use multiple cores. My goal is to maximize core utilization without sacrificing stock results.
TDC, EDC, and PPT shouldn't affect your results on lightly threaded tasks. These numbers represent the overall CPU limits. You need to set them extremely low only when games use very few cores. I've seen this firsthand: I had to bring them down to the 35W TDP APU levels before my single-core speed dropped. Have you tried using a curve optimizer to apply a negative voltage offset? It clearly changed how the CPU boosted, allowing it to reach 4.95GHz more often in games.
For stability checks, OCCT is a good choice. Perform a large, variable AVX2 stress test lasting 15 minutes on each core separately (use advanced settings, leave all except one core checked, enable both physical and virtual checks, turn off other options). If errors appear, your curve offset isn't stable.