The downside to this is that the fan speed is locked, and won't slow down or enter its passive mode, even when idle. As such, we set the fans manually to 50 percent, which saw a higher and more constant boost clock emerge. We noticed that the fans didn't seem to want to spin beyond 42 percent, apparently prioritising low noise over boost frequency. One issue we did notice with the ASUS card is that it initially wasn't boosting as high as we'd have expected. The ASUS Strix card has a minor advantage on memory frequency too, as it's able to match the MSI's effective frequency of 7.8GHz whereas the EVGA edition only hits 7.7GHz – this is most likely due to the luck of the drawer. However, in practice the two perform almost identically, as both were boosting to around 1,430MHz under load. However, the higher original base clock of the EVGA GTX 970 SC ACX2 meant that an 11 percent increase here was enough to surpass by the ASUS card. We were able to increase the ASUS base frequency by 15 percent. However, that's not to say that the ASUS or EVGA cards are slouches when it comes to overclocking. The combination of Maxwell's efficiency and MSI's hefty power delivery system clearly serves it well. Even crazier is the fact that it was happy to boost to a constant 1.5GHz! Such frequencies are almost unheard of for graphics cards, especially for bog standard air cooled ones with no voltage modifications. It's the only card to reach a base clock greater than 1,300Mhz, which is just insane for a GPU. Usually when your 3D graphics start to show artifacts such as white dots ('snow'), you should back down 10-15 MHz and leave it at that. #Evga precision x how to overclock 770 windowsChange your Power Options in the Windows Control Panel to High Performance.As you can see, the best overclocker is the MSI GTX 970 Gaming 4G, as it reaches the highest base clock and the joint highest memory clock. Bump the chip multiplier to 42 and disable Turbo Boost or bump the Turbo Boost multiplier to 42 and leave the rest of it alone. The Corsair H80 and H100i are both awesome AIO water coolers.Įdit: Saw your sig. I'd start there unless you have the money to spend on something better. It does wonders and it’s as easy as setting the power limits as max and just increasing the clock speed and mem speed by a bit at a time until it’s unstable. The Cooler Master Hyper 212+ (~$20) has long been the baseline for CPU heat sinks for overclocking. I was getting 14.5 FPS from bench with old clock now getting 85 FPS average in bench with new clock settings All NVidia control panel settings are now. Nice and stable, really good frame rate now. I would like to overclock my GPU completely but think it will void my warranty. #Evga precision x how to overclock 770 upgradeIf you can't get stable at 1.25v, back your multiplier down.Įach chip is different and the transition form SB - Haswell has increased the deviation between them.Īgain, upgrade your cooler if you're using the stock Intel heat sink. Moving on into Heaven you can see the overclock we've managed to achieve here with the EVGA GTX 770 2GB SuperClocked ACX managing to push up past the reference clocked GTX 780 3GB. Stable precision X overclocking config for GTX 770M. A higher voltage does not mean more performance. If it does, you'll want to step it up by 0.05v until it's stable. With Haswell, that typically starts to happen around the 4.5GHz mark. To get to 4.2GHz, you would set the multiplier to 42.Ĥ.2GHz shouldn't require an increase in voltage. Each +1 step of the multiplier will give you 100MHz. Otherwise, you may consider just OCing the Turbo Boost multiplier.īasically, you just increase the multiplier on either the chip or the turbo in the BIOS. You'll also want to set your power settings in Windows to High Performance. Other than that, there are a few things you'll want to consider.ĭo you want the CPU to run at the OC speed ALL the time? If so, you need to disable the Turbo Boost and Speedstep in the BIOS. The cooler has been shown to be effective, but with Haswell's increased temps/wattage, I would step up before moving on to anything substantial.
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