ASUS STRIX GTX 780 OC 6GB Overclocking Review

We take the new ASUS STRIX GTX 780 OC 6GB video card and push it to its limits while overclocking. We will compare performance overclocked with a GeForce GTX 780 Ti, AMD Radeon R9 290X and find out what gameplay improvements overclocking allows. This card isn't just silent, its got overclocking prowess too.

Introduction

Last week we evaluated the new ASUS STRIX GTX 780 OC 6GB video card. We evaluated the video card against a reference GeForce GTX 780 3GB video card and an XFX Radeon R9 290X 4GB video card on a single display up to 1600p.

The new ASUS STRIX GTX 780 OC 6GB has several appealing features for a custom built GeForce GTX 780. ASUS has designed the new STRIX line of video cards to be quiet with silent running modes. ASUS has addressed the noise issue with video card and designed a video card that literally runs with its fans off during idle or light game loads. When needed, the fans spin up slowly and only run as fast as these need to in order to keep the GPU cool enough. In our testing this was a respectable 73c.

The other interesting fact of the ASUS STRIX GTX 780 OC is that it comes with double the amount of VRAM compared to standard GeForce GTX 780 video cards. The ASUS STRIX GTX 780 OC has 6GB of VRAM on board to allow the latest games like Watch Dogs to run smoothly. It should also benefit gameplay when running two cards in SLI at 4K and NV Surround resolutions.

These things combined with the custom hardware for long life and efficiency made the ASUS STRIX GTX 780 OC compete quite well with even the AMD Radeon R9 290X GPU based video card. In every situation, it was faster than the standard GeForce GTX 780 and allowed a better gameplay experience.

This all did not come without a premium on the price at $579, but it seems to be adding up to be possibly worth it. Today we are going to look at the overclocking potential of the ASUS STRIX GTX 780 OC 6GB video card.

We are going to overclock it without changing the voltage and fan speed, and then we are going to max it out with the highest voltage increase and fan increase for the best overclock. In order to find out how it truly shines when overclocked, we are going to also include a GeForce GTX 780 Ti (the GTX 780's bigger brother) to see if overclocked performance can reach GeForce GTX 780 Ti levels. We will also compare it to the AMD Radeon R9 290X GPU again. Finally, we will go over all the gameplay advantages from overclocking.


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Before we begin overclocking, it is important to know where you are starting from. For those interested, the ASIC score presented by GPUz is 85.9%. The base clock is 889MHz and the boost clock is 941MHz on the ASUS STRIX GTX 780 OC 6GB video card. This translates to a real-world actual in-game frequency of 1058MHz while gaming. It is this 1058MHz frequency we will compare the overclock to since it is the actual clock while gaming. Memory runs at 6GHz.

We are using the latest GPU Tweak version 2.6.4.0. GPU Tweak supports a max GPU voltage of 1.212V for this video card, though we never actually saw that voltage achieved on the video card, we'll show the max voltage on the next page. GPU Tweak only allows an increase up to 110% from 100% for the Power Target. There is also a minimum voltage setting, not turned on here, if you wish to keep the minimum voltage at a certain level, which we found didn't help us to achieve any better of an overclock.

In the picture above you can also see the fan speed, which by default is on "Auto." This allows the STRIX technology to do its thing automatically with the fans when the sensors hit 65c. You can also manually set the fan speed and it will indeed override the STRIX technology and set a constant fan speed to your liking.