Anthony
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@MiniMe, I am attempting to construct an Excel spreadsheet using recommended ratios (or relationships) between graphics card parameters as was touched on in this thread: Initial Ratio Definition.
Rules:
Spreadsheet formulas
Spreadsheet Template Values
Basically, I am trying to create a spreadsheet that auto-generates values (VDD, MEM, VDDCI, and MVDD) when I input the Core Clock (CORE) value. But based on the recommended ratios from https://www.igorslab.de/community/threads/gigabyte-5700-xt-bios-mod-fails.3304/post-86493 , the numbers in the spreadsheet differ from the values at the bottom of the post. I am trying to understand the reasoning for these differences, as well as get some feedback concerning making such an Excel template. Thanks!
Example values provided in thread
Rules:
- Core Clock (CORE) to VDD (Core Voltage) ratio 1.75.
- Core Clock (CORE) to Memory Clock (MEM) difference to 480 Mhz.
- Memory Controller Voltage (VDDCI) to Memory Clock (MEM) ratio is 2.14.
- Memory Voltage (MVDD) to Memory Clock (MEM) is 1.41.
Spreadsheet formulas
Core Clock (CORE) | Core Voltage (VDD) | Memory Clock (MEM) | Memory Controller Voltage (VDDCI) | Memory Voltage (MVDD) |
Input value like 1380 | = (CORE / 1.75) | = (CORE - 480) | = ((MEM*2) / 2.14) | = (MEM * 1.41) |
Spreadsheet Template Values
Core | Vdd | Mem | Vddci | Mvdd |
1330 | 760 | 850 | 794 | 1199 |
1360 | 777 | 880 | 822 | 1241 |
1380 | 789 | 900 | 841 | 1269 |
1415 | 809 | 935 | 874 | 1318 |
1430 | 817 | 950 | 888 | 1340 |
Basically, I am trying to create a spreadsheet that auto-generates values (VDD, MEM, VDDCI, and MVDD) when I input the Core Clock (CORE) value. But based on the recommended ratios from https://www.igorslab.de/community/threads/gigabyte-5700-xt-bios-mod-fails.3304/post-86493 , the numbers in the spreadsheet differ from the values at the bottom of the post. I am trying to understand the reasoning for these differences, as well as get some feedback concerning making such an Excel template. Thanks!
Example values provided in thread
Core clock, VDD : Memory clock, VDDCI, MVDD, TeamRedMiner Hashrate
Samsung and Micron,
- 1330 MHz, 750 mV : 850 (1700/2) MHz, 800 mV, 1350 mV, 52.10 MH/s,
- 1360 MHz, 760 or 770 mV : 880 (1760/2) MHz, 820 mV, 1350 mV, 54.10 MH/s,
- 1380 MHz, 770 or 780 mV : 900 (1800/2) MHz, 840 mV, 1350 mV, 55.30 MH/s,
Micron
- 1415 MHz, 790 or 800 mV : 935 (1870/2) MHz, 875 mV, 1350 mV, 57.10 MH/s,
- 1430 MHz, 800 or 810 mV : 950 (1900/2) MHz, 890 mV, 1350 mV, .58.10 MH/s.
Hynix
- 1330 MHz, 750 mV : 850 (1700/2) MHz, 780 mV, 1200 mV, 52.10 MH/s,
- 1360 MHz, 760 or 770 mV : 880 (1760/2) MHz, 780 mV, 1200 mV, 54.10 MH/s,
- 1380 MHz, 770 or 780 mV : 900 (1800/2) MHz, 780 mV, 1200 mV, 55.10 MH/s,
- 1415 MHz, 790 or 800 mV : 935 (1870/2) MHz, 800 or 850 mV, 1200 mV, 57.10 MH/s,
- 1430 MHz, 800 or 810 mV : 950 (1900/2) MHz, 820 or 850 mV, 1200 mV, 58.10 MH/s.