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Intel Core i9-9980XE Extreme Edition Review (Page 7)

By Steven Bassiri from Nov 13, 2018 @ 8:00 CST
TweakTown Rating: 91%Manufacturer: Intel

Power Consumption


We measure at the 8-pin power connector, and we see some pretty high power consumption in Intel Burn Test. Running Prime95, we found the CPU pulled almost 40W more than what we have seen here. Blender resulted in the same results we see here. Now, here is the thing, we saw XTU trigger current limit; however, we talked to ASRock who told us they removed power limits for this BIOS, and that it must be an error.



As with the 9th generation S-series CPU you can change the Tjmax offset on these new CPUs. We didn't do this; instead we treated it normally and went to see how high we could get the CPU and have it pass HandBrake 4K rendering as we do with all CPUs. We set input voltage to 2.1v; this is required to unleash performance when overclocking, if you leave it at 1.8v your CPU will be power constrained while it pretends to run unleashed at higher frequencies.

We then initially set a VCore of 1.25v, but we found we could go up to 1.3v with the same temperatures as the 7980XE. We enabled XMP set all core to 4.7GHz, and we didn't set any offsets, but you can do that if you like. We were able to get 4.7GHz out of the CPU, but we could have gone higher and had it pass our test, but we didn't because we don't want to give users the impression they can expect 5GHz overclocks with this CPU running Prime95 on high-end water cooling. I don't think most people could find a way to cool 500W with water. However, we will say to expect a few hundredMHz higher than the 7980XE, as this is basically a delidded 7980XE.

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