Graphics Card Reviews

Sapphire NITRO+ Radeon RX Vega 64 Limited Edition

Vega 64 Done Right

« Real World Gameplay Testing: High Settings | Final Thoughts »

Overclocking the Sapphire NITRO RX Vega 64

To perform the overclocking on this graphics card, I used the Global WattMan utility built into the Radeon Settings app. I also use TechPowerUp’s GPU-Z utility, and its logging function to track GPU-only power draw, GPU frequency, and temperatures.

With the Boost BIOS active on the graphics card, the Dynamic Frequency for State 7 (maximum) was 1,632MHz at 1,200mV. The HBM’s default settings were 945MHz at 1,100mV for State 3 (maximum). The temperature target was set to 70°C, and the default power limit was 0%.

Sapphire NITRO+ Radeon RX Vega 64 Limited Edition AMD, Gaming, GPU, Graphic Card, NITRO, RX VEGA 64, Sapphire, Video Card 1

My goal was to limit power consumption to 300-watts (the air-cooled reference design has a Typical Board Power rating of 295-watts), while also getting a decent improvement in benchmark scores. I used 3DMark Fire Strike to validate my overclock. I raised the Power Limit percentage to 50% and moved the GPU and HBM frequency sliders around, but was consistently drawing more power than I wanted with too little performance benefit. When I started backing off the power limits, setting it to a more modest 15%, I was able to get better scores after actually lowering the GPU voltage by 50mV, cutting back the State 7 clock to 1,622MHz, raising the HBM clock to 1,100MHz, and leaving the memory voltage control at the default. Although lowering the core frequency isn’t my usual overclocking technique, GPU-Z never showed the frequency above 1,615MHz anyway. Indeed, AMD’s RX Vega appears to perform rather well when undervolted.

Sapphire NITRO+ Radeon RX Vega 64 Limited Edition AMD, Gaming, GPU, Graphic Card, NITRO, RX VEGA 64, Sapphire, Video Card 2

Advertisement

In 3DMark Fire Strike, the overall and graphics scores improved under my tweaked settings by 545 and 1,133 points, respectively.

Previous page 1 2 3 4 5 6 7 8Next page

One Comment

We Want To Hear From You!

Back to top button