- Nov 11, 2020
- 49 (0.19/day)
|Processor||AMD Ryzen 7 3700X|
|Motherboard||Asus TUF Gaming B550M-Plus (Wi-Fi)|
|Cooling||Thermalright AS120, Arctic P12, Arctic F12|
|Memory||Crucial Ballistix White 3200C16 8G ×2|
|Video Card(s)||Radeon RX 6600 XT|
|Storage||Samsung PM981a 1T; Seagate ST1000DM010-2EP102|
|Audio Device(s)||Somic G923|
|Power Supply||EVGA 650 GD|
|Keyboard||Logitech K845 TTC Brown|
|Benchmark Scores||CPU-Z 17.01.64: 3700X @ 4.6 GHz 1.3375 V scoring 557/6206; 760K @ 5 GHz 1.5 V scoring 292/964|
PrefaceStill a student, bearing the annoying terrible quality of my 2600X for more than a year, I finally got the money I needed to buy a 3700X and B550 mainboard.
This is not an extreme test, with a hope for it to be surprising.
The test was done in January of this year.
I hope this test could give you another aspect of Zen 2 overclocking.
SetupMainboard: Asus TUF Gaming B550M-Plus (Wi-Fi), BIOS version 1202, all settings auto
CPU: AMD Ryzen 7 3700X (2036SUS), SMT on, all cores on
Radiator: Thermalright AS120 + stock TF7
System: Windows 10 Pro 1909, B550 chipset driver version 220.127.116.118
Testing MethodControl the clocks and voltages via Ryzen Master, and test it with CPU-Z's version 17.01.64 benchmark and stability test. At the same time, focus on the ratio of single-threaded and multi-threaded benchmark scores to ensure there's no thread drop.
Don't blame me for not giving it the most stress. As I have stated at the beginning, this is not an extreme test, whose purpose is to explore the frequency-voltage relation.
Testing ProcessBenchmark at 3.6 GHz 1 V as a reference. After three days of carefully twicking, I've got the results in the chart below.
1. Frequency and voltage in grey colour are not stable;
2. From left to right, the lables are: a. Frequency, b. Voltage of a stable status, c. Voltage of a relatively stable and extreme status, d. single-threaded score, e. theoretical single-threaded score, f. multi-threaded score, g. theoretical multi-threaded score, h. the difference of d and e, i. the difference of f and g;
From 3.9 GHz to 4.6 GHz, the ratio kept almost stable with an average of 11.07, a maximum of 11.08 and a minimum of 11.05, indicating that the scores are valid and there's no thread drop.
AnalysisTo be honest, I've never expected my 3700X to be this good at overclocking, though when benchmarked at 4.6 GHz 1.3375 V, Ryzen Master showed a temperature of 75 ℃. It probably explains why it can't go any higher in regard to very high heat density on the small die chip.
We've got this chart of the most important stats.
And we've got a graph according to this chart.
Notes: This is not a linear equation. It is growing faster and faster. The Maths analysis indicates that this is very close and accurate and the results are valid.
V = 0.1306*e^(0.5062*F), R^2 = 0.9995 ≈ 1
Assume that there's no problems with heat sink, we can predict this 3700X to be overclocked in a trend like this:
4.65 GHz - 1.3747 V
4.70 GHz - 1.4099 V
4.75 GHz - 1.4460 V
4.80 GHz - 1.4831 V
4.85 GHz - 1.5211 V
4.90 GHz - 1.5601 V
4.95 GHz - 1.6001 V
5.00 GHz - 1.6411 V
...... (Any volunteer who doesn't fear explosion? lol)
Besides, my 3700X could pass the stress test in CTR at 4.05 GHz 1.0375 V (1034mV).
That's all the test is about. I hope it could give you some ideas. Thx.
This article has already been published by myself on www.bilibili.com, with all copyright reserved.