Despite using a custom VBIOS, the card is still stuck at 1.075V vCore. MSI's using a custom PCB with a 10+1-phase power design and an extra 6-pin power header, both of which contribute to this gain. That's an extra 50MHz or so on the core that we're getting, with an additional 200MHz memory overclock. The MSI GTX 1070 we've got is pushing 2075.5MHz core and 4799MHz memory. Here's a table with the MSI 1070 OC progression: Core Clock (MHz) The Founders Edition card, plotted further down, output 1987MHz core and 4608MHz memory – so that's the same memory OC, but a slight (~2%) increase in clock-rate. EVGA's GTX 1070 SC has a power limit of 112% and uses a single 6-pin power connector, pointing toward a lower theoretical max OC limit than what MSI's dual-header card offers.Ģ025MHz core / 4608MHz memory is a pretty strong OC for reference power design. The clock-rate stabilized at ~2025MHz after making this change, with the memory clock pushing 4608MHz (+600MHz offset).
Voltage was choking our OC at earlier stages in the process, so we eventually increased voltage to its maximum limit on the card – 1.075V. We used EVGA's newest Precision X iteration for overclocking. The below table shows our stepped overclock progression attempts when using the EVGA GTX 1070 SC: Core Clock (MHz)
At that point, we tweak various other settings (power allowance, vCore, memory clock). We increment the clock-rate and other settings as the card continues to exhibit stability, stopping only once artifacting or driver crashes appear. The core functions of overclocking remain the same we're still using manual stepping and sliders to achieve high, sustained overclocks, but a new auto OC tool (currently only with EVGA Precision) makes limit finding easier. It's gotten more advanced – but not more complex.
0 kommentar(er)
