Is the i7 7700hq good for gaming
Core i7-7700HQ & i7-7820HK in the test: Kaby Lake-H for notebooks with and without an open multi
Kaby Lake with 45 watt TDP for notebooks is here. The Core i7-7700HQ is for the masses, the i7-7820HK for overclockers. ComputerBase has compared the two new CPUs with their predecessor with Skylake and shows in the test how much more performance users can expect.
Kaby Lake with more power
Four months after the first six Kaby Lake CPUs for notebooks with a maximum of 15 watt TDP, Intel will be launching additional mobile CPUs parallel to the desktop processors at CES 2017. Like the small processors of the Y and U series, these models also promise significantly higher clock rates with constant consumption and play HEVC with the Main 10 profile in hardware.
After testing the Core i7-7500U with 15 watts in November, ComputerBase had notebooks with Core i7-7700HQ and Core i7-7820HK available prior to the announcement. This test shows how fast the two new CPUs are. The test of the Core i7-7700K and Core i5-7600K was released on Tuesday.
Kaby Lake-H with 45 watt TDP
The new upper class of soldered notebook processors with 45 watt TDP goes by the code name Kaby Lake-H. At the beginning of 2017 there will be the fastest notebook variants but only as a solution with simple Intel HD graphics - Iris with twice as many shaders and eDRAM as with the old Core i7-6970HQ does not exist for the time being. Because the smaller graphics unit is allowed to clock 50 MHz higher with unchanged 24 shaders and supports HEVC (H.265) with profile Main 10, Intel has also changed its name from HD Graphics 530 to HD Graphics 630.
With 200 MHz more base and 300 MHz more turbo clock at the same time, the new 45 watt CPUs cost as much as their respective predecessors according to Intel's price list. The increase in clock rate is smaller than with the U processors, which with 15 watt TDP increase by 400 and with 28 watt TDP even by up to 600 MHz in turbo.
The most popular 45 watt Core i7
The tested Core i7-7700HQ replaces by far the most successful 45-watt processor of the Skylake generation: the Core i7-6700HQ. With the clock increase, the new entry-level model in the Core i7 series almost reaches the clock rates of the old top model Core i7-6920HQ, as can be ordered in the MacBook Pro 15 inch with Touch Bar.
The Core i7-7820HK that was also tested remains ahead of the Core i7-7700HQ by 100 MHz and is therefore faster than last year's top model. This variant also has a free multiplier and two MB more cache, but dispenses with vPro.
In addition to the new Kaby Lake H CPUs, Intel also presented other models with 4.5, 15.0 and 28.0 watt TDP at CES 2017. A separate overview shows all new Kaby Lake processors compared to their predecessor.
The notebooks in the test
ComputerBase had two different notebooks available for testing the two processors. The Core i7-7700HQ was tested by Asus with the new gaming notebook GL753VD with the GeForce GTX 1050 for notebooks with 4 GB of memory, which was also launched today. The Core i7-7820HK was provided by another manufacturer whose notebooks were still in a very early pre-series status. Although the processor was already able to provide its full performance, it is therefore not mentioned.
The Asus GL753VD has a 17.3 inch full HD display with TN technology and relies on the mobile GeForce GTX 1050 with 4 GB GDDR5, which was also presented at CES 2017. 16 GB DDR4, 256 GB SSD (M.2) and 1 TB HDD storage space are installed ex works. An optical drive is also offered.
The CPU and GPU are cooled by two heat pipes that connect the two chips. The heat dissipated to a radiator on the left side is blown out of the notebook by a fan. The cooling system is designed to be comparatively weak. The price is expected to be 1,199 euros. The smaller 15-inch version with otherwise the same equipment will cost 1,099 euros.
On the next page: test results with and without OC
- Jan-Frederik TimmEmailTwitter... is a graduate engineer and has been writing on ComputerBase since 2001 about the latest hardware, macOS and Windows.
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