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Intel Core i7-7820HK

Intel i7-7820HK

The Intel Core i7-7820HK is a fast quad-core processor for notebooks based on the Kaby Lake architecture and was announced in January 2017. It is the second fastest model of the consumer series at the time of the announcement. Only the i7-7920HQ and Xeon E3-1535M v6 are faster. Besides four cores including Hyper-Threading support running at 2.9 - 3.9 GHz (4 cores up to 3.5 GHz, 2 cores up to 3.7 GHz), the processor is also equipped with the HD Graphics 630 GPU as well as a dual-channel memory controller (DDR3L-1600/DDR4-2400). It is manufactured in a 14nm process with FinFET transistors.

Compared to the Core i7-7820HQ, the 7820HK lacks business features like vPro or TXT support.

Architecture

Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

Due to the higher clock speeds, the performance of the i7-7820HK is slightly faster than the old Skylake top model Core i7-6920HQ (2.9 - 3.8 GHz). The performance is sufficient even for very demanding tasks and on par with powerful desktop quad-core processors.

Graphics

The integrated Intel HD Graphics 630 has 24 Execution Units (similar to previous HD Graphics 530) running at 350 - 1100 MHz. The performance depends a lot on the memory configuration; it should be comparable to a dedicated Nvidia GeForce 920M in combination with fast DDR4-2133 dual-channel memory.

Contrary to Skylake, Kaby Lake now supports hardware decoding for H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors, which were announced in January, should also support HDCP 2.2.

Power Consumption

The chip is manufactured in an improved 14nm process with FinFET transistors, which improves the efficiency even further. Intel still specifies the TDP with 45 Watts, but it can also be reduced to 35 Watts by the notebook manufacturers (cTDP down). This will obviously affect the performance, because the Turbo Boost cannot be maintained for longer periods.

SeriesIntel Kaby Lake
CodenameKaby Lake
Series: Kaby Lake Kaby Lake
Intel Core i7-7700K compare4.2 - 4.5 GHz4 / 88 MB
Intel Core i7-7700 compare3.6 - 4.2 GHz4 / 88 MB
Intel Xeon E3-1535M v6 compare3.1 - 4.2 GHz4 / 88 MB
Intel Core i7-7920HQ compare3.1 - 4.1 GHz4 / 88 MB
Intel Core i7-7700T compare2.9 - 3.8 GHz4 / 88 MB
Intel Core i5-7600K compare3.8 - 4.2 GHz4 / 48 MB
Intel Xeon E3-1505M v6 compare3 - 4 GHz4 / 88 MB
Intel Core i7-7820HQ compare2.9 - 3.9 GHz4 / 88 MB
» Intel Core i7-7820HK2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-7700HQ compare2.8 - 3.8 GHz4 / 86 MB
Intel Core i5-7500 compare3.4 - 3.8 GHz4 / 46 MB
Intel Core i5-7440HQ compare2.8 - 3.8 GHz4 / 46 MB
Intel Core i7-7567U compare3.5 - 4 GHz2 / 44 MB
Intel Core i7-7660U compare2.5 - 4 GHz2 / 44 MB
Intel Core i7-7600U compare2.8 - 3.9 GHz2 / 44 MB
Intel Core i5-7300HQ compare2.5 - 3.5 GHz4 / 46 MB
Intel Core i5-7500T compare2.7 - 3.3 GHz4 / 46 MB
Intel Core i5-7287U compare3.3 - 3.7 GHz2 / 44 MB
Intel Core i7-7560U compare2.4 - 3.8 GHz2 / 44 MB
Intel Core i5-7360U compare2.3 - 3.6 GHz2 / 44 MB
Intel Core i5-7267U compare3.1 - 3.5 GHz2 / 44 MB
Intel Core i7-7500U compare2.7 - 3.5 GHz2 / 44 MB
Intel Core i5-7300U compare2.6 - 3.5 GHz2 / 43 MB
Intel Core i5-7260U compare2.2 - 3.4 GHz2 / 44 MB
Intel Core i5-7200U compare2.5 - 3.1 GHz2 / 43 MB
Intel Core i3-7100H compare3 GHz2 / 43 MB
Intel Core i3-7167U compare2.8 GHz2 / 43 MB
Intel Core i3-7130U compare2.7 GHz2 / 43 MB
Intel Core i7-7Y75 compare1.3 - 3.6 GHz2 / 44 MB
Intel Core i5-7Y57 compare1.2 - 3.3 GHz2 / 44 MB
Intel Core i5-7Y54 compare1.2 - 3.2 GHz2 / 44 MB
Intel Core i3-7100U compare2.4 GHz2 / 43 MB
Intel Core m3-7Y32 compare1 - 3 GHz2 / 44 MB
Intel Pentium Gold 4415U compare2.3 GHz2 / 42 MB
Intel Core m3-7Y30 compare1 - 2.6 GHz2 / 44 MB
Intel Celeron 3965U compare2.2 GHz2 / 22 MB
Intel Core i3-7020U compare2.3 GHz2 / 43 MB
Intel Celeron 3867U compare1.8 GHz2 / 22 MB
Intel Celeron 3865U compare1.8 GHz2 / 22 MB
Intel Pentium Gold 4425Y compare1.7 GHz2 / 42 MB
Intel Pentium Gold 4415Y compare1.6 GHz2 / 42 MB
Intel Pentium Gold 4410Y compare1.5 GHz2 / 42 MB
Intel Celeron 3965Y compare1.5 GHz2 / 22 MB
Clock Rate2900 - 3900 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache8 MB
Number of Cores / Threads4 / 8
Power Consumption (TDP = Thermal Design Power)45 Watt
Manufacturing Technology14 nm
Max. Temperature100 °C
FeaturesDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPUIntel HD Graphics 630 (300 - 1150 MHz)
64 Bit64 Bit support
Architecturex86
Starting Price$378 U.S.
Announcement Date01/03/2017

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 689     avg: 773     median: 770 (17%)     max: 867 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740750760770780790800810820830840850860870880890900910920930940Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 156     avg: 163     median: 162 (60%)     max: 171 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 8.34     avg: 8.6     median: 8.4 (17%)     max: 9.53 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.69     avg: 1.8     median: 1.8 (58%)     max: 1.85 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 6062     avg: 6231     median: 6182 (55%)     max: 6566 points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 22793     avg: 23622     median: 23046.5 (39%)     max: 26081 points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 32769     avg: 34129.5     median: 34129.5 (33%)     max: 35490 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 8465     avg: 8558.5     median: 8558.5 (64%)     max: 8652 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 179.449     avg: 235     median: 214.3 (3%)     max: 330.9 s
wPrime 2.10 - wPrime 2.0 32m *
min: 6.668     avg: 10.4     median: 8.6 (2%)     max: 17.8 s
wPrime 1.55 - wPrime 1.55 1024m *
215 s (1%)
X264 HD Benchmark 4.0 - x264 Pass 2
min: 46     avg: 46.9     median: 46.9 (21%)     max: 47.8 fps
TrueCrypt - TrueCrypt Serpent
min: 0.416     avg: 0.5     median: 0.4 (0%)     max: 0.609 GB/s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 7957     avg: 8098     median: 8038 (44%)     max: 8360 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 9     avg: 9.6     median: 9.6 (2%)     max: 10.5 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 20.665     avg: 21.7     median: 21.5 (1%)     max: 23.5 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 490.548     avg: 529     median: 535.2 (2%)     max: 550.2 s
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
30280 Points (35%)
3DMark 11 - 3DM11 Performance Physics
min: 9542     avg: 10034     median: 10019 (43%)     max: 10523 Points
3DMark - 3DMark Ice Storm Physics
min: 51307     avg: 53563     median: 52699.5 (34%)     max: 59600 Points
3DMark - 3DMark Ice Storm Extreme Physics
min: 50796     avg: 53623     median: 52515.5 (56%)     max: 59482 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 51327     avg: 54058     median: 52784.5 (55%)     max: 60127 Points
3DMark - 3DMark Cloud Gate Physics
min: 7905     avg: 8141     median: 8001.5 (20%)     max: 9050 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 11041     avg: 11381     median: 11174 (28%)     max: 12592 Points
3DMark - 3DMark Time Spy CPU
min: 4259     avg: 4439     median: 4447 (31%)     max: 4568 Points
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
min: 15838     avg: 16002     median: 16001.5 (25%)     max: 16165 points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 901.2     avg: 2277     median: 984 (2%)     max: 7545 ms
Sunspider - Sunspider 1.0 Total Score *
min: 68.3     avg: 138     median: 71.1 (1%)     max: 400.9 ms
Octane V2 - Octane V2 Total Score
min: 35189     avg: 38766     median: 39000 (66%)     max: 40652 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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