![]() ![]() Well, days ago AMD announced the low-TDP line of their latest CPUs which includes the Ryzen 5 7600, Ryand Rymodels all of which ended up on my test bench a couple of weeks back.įor more than 50 years AMD has driven innovation in high-performance computing, graphics and visualization technologies. Both AMD and Intel recently released their latest desktop CPU lines, the Zen 4 (Codename Raphael – reviews here ) and 13th gen (Codename Raptor Lake) respectively which offered impressive performance boosts over their previous models. ![]() This is especially evident in the PC market and especially in regards to CPUs and GPUs where AMD, Intel and NVIDIA are holding almost the entirety of the market. The increased heat comes from the increased PPT, 97 Watts instead of the standard 88 Watts.Competition between manufacturers is always good thing, not only is it the driving force behind the further advancement of technology but it also results in the production of better products (alas not always in terms of build quality) and at lower final costs for the end consumer. You only are going to gain if during the benchmark run it stays below 4,150 Mhz long enough. It all depends on how long the processor can boost above 4,150 Mhz under normal precision boost. This setting is only better for loads that stay at high levels for sustained periods of time, like for example benchmark programs like Cinebench, as the CPU normally drops below what I have it manually set at. You can see the increased temperature, as under standard precision boost I run 5 degrees C cooler, yet boost up higher to somewhere around 4,300 Mhz for short periods of time, and under sustained stress loads it clocks down to around 4,050 Mhz pending on power limits. This means the CPU never boost up, or clocks down, but instead always sits at the same frequency of 4,150 Mhz regardless of CPU load. I have the CPU frequencies on all 6 cores locked at 4,150 Mhz. If it makes you feel better, it can look like this on the R10 board. I can go up to 165 Amps EDC on my R10 board (Ryzen 3000 version 1 board), up from the default 90 Amps for my 3700X (TDP 65 Watts). I would highly recommend not doing this unless you fully understand what effect it will have on the CPU and VRM section. The values for any of these can be changed with Ryzen master, but be very careful doing so as you can permanently damage the CPU/VRM section when setting these to high. The VRM phases for the boards you linked are high end VRM's and not needed unless you plan on overclocking the CPU, which is what you would be doing when adjusting the EDC value, or the PPT value, or the CPU multiplier etc. Thermal Design Current (“TDC”): The maximum current (amps) that can be delivered by a specific motherboard’s voltage regulator configuration in thermally-constrained scenarios.ĭefault for socket AM4 is at least 95A on motherboards rated for 105W TDP processors.ĭefault for socket AM4 is at least 60A on motherboards rated for 65W TDP processors.Įlectrical Design Current (“EDC”): The maximum current (amps) that can be delivered by a specific motherboard’s voltage regulator configuration in a peak (“spike”) condition for a short period of time.ĭefault for socket AM4 is 140A on motherboards rated for 105W TDP processors.ĭefault for socket AM4 is 90A on motherboards rated for 65W TDP processors. Applications with high thread counts, and/or “heavy” threads, can encounter PPT limits that can be alleviated with a raised PPT limit.ĭefault for Socket AM4 is at least 142W on motherboards rated for 105W TDP processors.ĭefault for Socket AM4 is at least 88W on motherboards rated for 65W TDP processors. Package Power Tracking (“PPT”): The PPT threshold is the allowed socket power consumption permitted across the voltage rails supplying the socket. I notice on Passmark many of the fastest systems often have the Gigabyte Aorus Ultra. Again, guessing the EDC of that MB is the limiting factor. The CPU frequency however is way higher than the R10 running a 120 liquid cooler on a 5900. Along with the R10 based system I have, I also have an Asus Strix B550 board that hits 100% on the EDC during 3D rendering on a 5800X even with a 360 liquid cooler. Perhaps this is a huge deal with faster multicore processors. Below is a screen capture from Amazon about the specs of a few select motherboards. With fast processors like the 5800x 59X I am beginning to think that after cooling, current is next main limiting factor. However the classic bottleneck or log jam or weakest link in the chain tends to be just that, the limiting factor. I have been studying up on the next motherboard upgrade and I think the Ryzen Master has been an eye opener. ![]()
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