8 generations cool Rui games The strongest CPU is I9 8950HK, the default high frequency, unlocking frequency, 12MB level 3 caching is her flagship characteristics. Today, we will analyze the overclocking capabilities of this CPU in conjunction with actual tests.
I9 8950HK is the same as the 6-core 12 thread 45W standard voltage CPU sequence as I7 8850H \ I7 8750h. I9-8950HK default frequency 2.9GHz, single-core Turbo 4.5GHz, quad-core Turf frequency 4.5GHz, full-core full load 4.3GHz. This frequency is based on the I7 8700K of the desktop, and the single core is high, and the performance is unprecedented. It is worth noting that the mobile 6 core I7 of the 8-generation compression CPU is equipped with 9MB of three-level cache, and I9 8950HK, which is unlocking, has a complete 12MB capacity. Of course, this CPU's default TDP is only 45W, and the MSI GT75 machine we get directly unlocks 200W PL1 and PL2 power limitations.
GT75 8RG machine configuration GTX1080 + DDR4 2666 32GB
AIDA 64 information
I9 8950HK specific specifications
We use running score software, copy software, and games for this CPU's default state, which can be concluded as follows:
One: Even 9 heat pipes such as MSI GT75, 10 heat pipes are strongest on the mold, I9 8950HK has a distance I7 8700K with a frequency close to the frequency. In a short running part, the two are different, but the time is long, the I9 8950HK under the default voltage will fall in full load, lag behind the desktop CPU.
AVX 2 heavy load transcoding must be manually buck to maintain 4GHz, otherwise it will drop to 2.6-2.9GHz
Second: AVX 2 represents the H265 transcoding and intensive load of the intensive load, I9 8950HK can't persist in the default full-core farm frequency. We use the command line script of the tablet tool group to test, and the AVX 2 load has a running frequency of about 2.6 to 2.9GHz. In the AIDA 64 FPU copy, I9 8950HK has a running frequency of approximately 3.6GHz. In normal applications, depending on the load, I9 8950HK default full load frequencies between 4.15 and 4.3GHz. Under these two conditions, the strong cold fan does not improve the heat dissipation, and the full load is 98 degrees Celsius.
Regardless of whether it is opened, the strong cold copy frequency is 3.6-3.7GHz temperature is also almost 95-98 ° C
Three: Foreign media said that the CPU's 4.8GHz single core Ruixing only took effect at less than 50 degrees Celsius, we did not explicitly read such information, but we have never seen it in the case of approaching the air. This CPU has a Core frequency frequency over 4.6GHz. Its 0 load frequency is between 4.35 GHz and 4.55 GHz.
Corona Benchmark defaults 4.16GHz
Four: In the large 3D game of the island of the Soul 5, I9 8950HK can stick to the full-core Rui frequency of 4.3GHz, there is no problem, the default temperature is between 85 and 90 degrees Celsius. If the GT75 is turned on, then its temperature will fall to about 70 degrees Celsius, and the cooling effect is obvious.
Be
Page 2: Actual overclocking exploration process
Actual overclocking exploration process
Our overclocking tool is Intel XTU official tool, she can provide rich voltage regulation, Turbo power consumption and time adjustment, and fast response under Windows, very convenient.
From the contrast of I7 7700K, I7 6700K desktop U and I7 7820HK, I7 6820HK from the past notebook, the CPU default voltage of the LGA package is high, and the CPU temperature of the same voltage may be lower than the mobile BGA CPU. In general, the LGA CPU is not heat resistant to the notebook, and the BGA CPU is neither resistant to heat.
I9 8950HK uses the 14nm process that is very close to I7 7820HK, which is basically consistent in frequency voltage characteristics, and there is no difference in performance at the same core, just two cores. When the power consumption is also broken, I9 8950HK faces a more severe temperature pressure. Our testing process is basically adjusted from 1.2V to the CPU core voltage, which increases the value of the CPU Offset-voltage while frequency improvement. This is because the voltage is higher than 1.15V, and I9 8950HK down speed is getting closer and more serious, and the voltage is less than 1.05V, and 4GHz is difficult to stabilize.
Give more than 43 times, it will be almost inevitable.
Extreme grade set 48 times 1.19V offset -0.175V
Extreme grade Cinebench R15 1514 points
The specific process of overclocking is cumbersome and boring. We can directly conclusion over the overclocking conclusion as follows:
One: 43 times For I9 8950HK, it is not absolutely available in the default, and the voltage is too high if the system EC is too high when the AVX 2 heavy load is involved, and will definitely down. Even if there is intention to reduce, 4.3GHz is still unable to be truly applied in AVX 2 transcodes. From this perspective, if you pursue I9 8950HK heavy load high performance applications, overclocking is no value, pondering the buck is the path.
Second: If the game is brought, I9 8950HK can pull a little frequency in moderately reducing the voltage (cannot be less than 1.15V). Combined with strong cooling mode, the ideal conditions run a short-loaded test software or a game in the game that is not high in the CPU utilization. Under this condition, the system is still not stable enough, but can be improved in small.
Three: If you want to get I9 8950HK to brush, DIY overclocking enthusiasts can try to pull the full core multiplier to 48, and find a suitable voltage to run the test software. Looking for a suitable voltage to obtain a better score, the voltage will be slightly above one, and the results will be slightly higher. Our overclocking final result is 1.190V VID + Offest - 0.075V setting 48 multiplier to get the score of Cinebench R15 1514. This grade is basically chasing the tabletop R7 1700X, I7 6900K and other eight-core CPUs, but can't catch up with the latest octacore X299 platform CPU in I7 7820x. This score has no practical meaning.
Can I9 8950HK can be 4.8GHz? Under the premise of nothing of the notebook, it is difficult to see more than ten seconds. For 14nm Coffee Lake, the notebook 6 core overclock is too difficult.
Original address: https://www.eeboard.com/news/i9-8950HK/
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