You can overclock the CPU and DRAM through the UEFI BIOS or through Intel's XTU in Windows, but the Vega GPU can only be overclocked through AMD's WattMan software. You will find AMD's WattMan under the Gaming tab of the setting menu, under global settings, and under the Global Radeon WattMan tab. We opted to find an overclock that balanced the CPU and the GPU. The GPU OC to 1320MHz was done with ease, and without voltage adjustment, the GPU has a solid 130W limit.
The CPU OC was done with XMP enabled in the UEFI, all cores set to 43x and a VCore of 1.05v. We increased the CPU power limits in Intel XTU. Keep in mind that the AC/DC PSU is limited to 230W, so you won't be able to go crazy high on the CPU and the GPU at the same time.
To put things into a different perspective, we tried higher frequencies, and they were pretty easy to achieve on the CPU, but anything past 1.1v set caused our temperatures to shoot through the roof, and the system throttled. We will explore Hades Canyon overclocking more in depth in a future article.
A quick pass through GTA:V and we see a 5FPS increase at 1440P, a 6FPS increase at 1080P, and 12FPS increase at 720P. These are modest gains. We found that if you overclock the CPU alone, gaming performance doesn't go up much. That means the GPU is the bottleneck, so the gains we see here are mostly due to the GPU OC and not the CPU OC.
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- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and System]
- Page 3 [Teardown of the NUC8i7HVK]
- Page 4 [BIOS]
- Page 5 [Test Setup and Benchmarks]
- Page 6 [System and IO Benchmarks]
- Page 7 [Temperature and Power Consumption]
- Page 8 [Overclocking]
- Page 9 [What's Hot, What's Not & Final Thoughts]
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