Intel Core i7-7Y75 vs Intel Core i7-7820HK vs Intel Core i7-7700HQ

Intel Core i7-7Y75

► remove Intel 7Y75

The Intel Core i7-7Y75 is a very efficient dual-core SoC for tablets and passively cooled notebooks based on the Kaby Lake architecture and was announced in the end of August 2016. The CPU consists of two processor cores clocked at 1.3-3.6 GHz (2-core Turbo not specified yet). Thanks to Hyper Threading, the processor can execute up to four threads simultaneously. The chips also includes the Intel HD Graphics 615 GPU, a dual-channel memory controller (DDR3L/LPDDR3) as well as VP9 and H.265 video de- and encoder. It is still produced in a 14 nm process with FinFET transistors. 

Architecture

Intel basically used the familiar micro architecture from the Skylake generation, so the per-MHz performance is identical. Only the Speed-Shift technology for faster dynamic adjustments of the voltages and clocks was improved, and the matured 14 nm process now also enables much higher frequencies and better efficiency than before. 

Performance

Despite the changed designation, the Core i7-7Y75 is the successor to the Core m7-6Y75 (Skylake Y-series), so the chip does not reach the performance level of other Core i processors due to the lower TDP. Thanks to its high Turbo clock, the 7Y75 can sometimes keep up with the 15 Watt models for short peak load and single-thread scenarios, but the clocks will drop significantly under sustained workloads. The CPU is still suitable for many more demanding applications as well as multitasking. 

Graphics

The integrated Intel HD Graphics 615 GPU has 24 Execution Units (EUs) like the old HD Graphics 515 and runs with clocks between 300 and 1050 MHz in combination with this processor. The performance heavily depends on the TDP limit as well as the memory configuration; with fast LPDDR3-1866 RAM in dual-channel mode, the GPU should sometimes be able to compete with the HD Graphics 520, but can also be much slower in other scenarios. Modern games from 2016 will, if at all, only run smoothly in the lowest settings.

Contrary to Skylake, Kaby Lake now also supports hardware decoding for H.265/HEVC Main10 with a 10-bit color depth as well as Google's VP9 codec.

Power Consumption

The chip is manufactured in an improved 14 nm process with FinFET transistors, so the power efficiency was once again improved significantly. The typical TDP for the Y-series is specified at 4.5 Watts, and can be adjusted in both directions depending on the usage scenario.

Intel Core i7-7820HK

► remove Intel 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.

Intel Core i7-7700HQ

► remove Intel 7700HQ

The Intel Core i7-7700HQ is a fast quad-core processor for notebooks based on the Kaby Lake H architecture (7th generation Core), which was announced in January 2017 at CES. It is the successor to the Core i7-6700HQ from the Skylake generation and is manufactured in an improved 14 nm+ process, so the clocks are 200 MHz higher at the same TDP. The architecture was not changed, only the video engine got an update (see our Kaby Lake article).

The integrated graphics card is called Intel HD Graphics 630, but the architecture does not differ from the 530 GPU from the Skylake generation and only the clocks are slightly higher. 

Performance

Thanks to the 200 MHz higher clocks (5.5-7.6% depending on the Boost), the CPU performance is increased and roughly on par with the Core i7-6970HQ (2.8-3.7 GHz but with 128 MB eDRAM). The TDP can also be reduced to 35 Watts (cTDP down), but this will reduce the performance.

Power Consumption

Due to its 45-Watt TDP, the CPU will be used in bigger notebooks with at least 15 inches most of the time.

Intel Core i7-7Y75Intel Core i7-7820HKIntel Core i7-7700HQ
Intel Core i7Intel Core i7Intel Core i7
Kaby LakeKaby LakeKaby Lake
: Core i7 Kaby Lake
Intel Core i7-7920HQ3100 - 4100 MHz4 / 88 MB
Intel Core i7-7820HQ2900 - 3900 MHz4 / 88 MB
Intel Core i7-7820HK2900 - 3900 MHz4 / 88 MB
Intel Core i7-7700HQ2800 - 3800 MHz4 / 86 MB
Intel Core i7-7567U3500 - 4000 MHz2 / 44 MB
Intel Core i7-7660U2500 - 4000 MHz2 / 44 MB
Intel Core i7-7600U2800 - 3900 MHz2 / 44 MB
Intel Core i7-7560U2400 - 3800 MHz2 / 44 MB
Intel Core i7-7500U2700 - 3500 MHz2 / 44 MB
» Intel Core i7-7Y751300 - 3600 MHz2 / 44 MB
Intel Core i7-7920HQ3100 - 4100 MHz4 / 88 MB
Intel Core i7-7820HQ2900 - 3900 MHz4 / 88 MB
» Intel Core i7-7820HK2900 - 3900 MHz4 / 88 MB
Intel Core i7-7700HQ2800 - 3800 MHz4 / 86 MB
Intel Core i7-7567U3500 - 4000 MHz2 / 44 MB
Intel Core i7-7660U2500 - 4000 MHz2 / 44 MB
Intel Core i7-7600U2800 - 3900 MHz2 / 44 MB
Intel Core i7-7560U2400 - 3800 MHz2 / 44 MB
Intel Core i7-7500U2700 - 3500 MHz2 / 44 MB
Intel Core i7-7Y751300 - 3600 MHz2 / 44 MB
Intel Core i7-7920HQ3100 - 4100 MHz4 / 88 MB
Intel Core i7-7820HQ2900 - 3900 MHz4 / 88 MB
Intel Core i7-7820HK2900 - 3900 MHz4 / 88 MB
» Intel Core i7-7700HQ2800 - 3800 MHz4 / 86 MB
Intel Core i7-7567U3500 - 4000 MHz2 / 44 MB
Intel Core i7-7660U2500 - 4000 MHz2 / 44 MB
Intel Core i7-7600U2800 - 3900 MHz2 / 44 MB
Intel Core i7-7560U2400 - 3800 MHz2 / 44 MB
Intel Core i7-7500U2700 - 3500 MHz2 / 44 MB
Intel Core i7-7Y751300 - 3600 MHz2 / 44 MB
1300 - 3600 MHz2900 - 3900 MHz2800 - 3800 MHz
128 KB256 KB256 KB
512 KB1 MB1 MB
4 MB8 MB6 MB
2 / 44 / 84 / 8
4.5 45 45
14 14 14
100 °C100 °C100 °C
BGABGA
Dual-Channel DDR3L-1600/LPDDR3-1866 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, vPro, TXTDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIDual-Channel DDR3L-1600/DDR4-2133 Memory Controller, AVX, AVX2, Quick Sync, Virtualization, AES-NI save
iGPUIntel HD Graphics 615 (300 - 1050 MHz)Intel HD Graphics 630 (300 - 1150 MHz)Intel HD Graphics 630 (350 - 1100 MHz)
$393 U.S.$378 U.S.$378 U.S.
Intel Core i7 7Y75

Cinebench R20 - CPU (Single Core)
100%
7Y75 +
min: 202     avg: 235     median: 234.5 (46%)     max: 267 Points
min: 358     avg: 370     median: 370 (72%)     max: 382 Points
Cinebench R20 - CPU (Multi Core)
100%
7Y75 +
min: 482     avg: 494     median: 493.5 (6%)     max: 505 Points
min: 1765     avg: 1774     median: 1774 (20%)     max: 1783 Points
Cinebench R15 - CPU Multi 64Bit
100%
7Y75 +
min: 236     avg: 251     median: 258 (6%)     max: 260 Points
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min: 689     avg: 773     median: 770 (18%)     max: 867 Points
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min: 603     avg: 726     median: 734 (17%)     max: 747 Points
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Cinebench R15 - CPU Single 64Bit
100%
7Y75 +
min: 121     avg: 126     median: 126 (58%)     max: 130 Points
min: 156     avg: 163     median: 162 (74%)     max: 171 Points
min: 120     avg: 155     median: 159 (73%)     max: 162 Points
Cinebench R11.5 - CPU Multi 64Bit
100%
7Y75 +
min: 2.87     avg: 2.9     median: 2.9 (8%)     max: 2.98 Points
min: 8.34     avg: 8.6     median: 8.4 (22%)     max: 9.53 Points
min: 6.67     avg: 8     median: 8.1 (21%)     max: 8.23 Points
Cinebench R11.5 - CPU Single 64Bit
100%
7Y75 +
min: 1.44     avg: 1.5     median: 1.5 (61%)     max: 1.54 Points
min: 1.69     avg: 1.8     median: 1.8 (75%)     max: 1.85 Points
min: 1.36     avg: 1.8     median: 1.8 (74%)     max: 1.84 Points
Cinebench R10 - Rendering Single 32Bit
100%
7Y75 +
5496 Points (56%)
min: 6062     avg: 6231     median: 6182 (64%)     max: 6566 Points
min: 5426     avg: 5882     median: 5910 (61%)     max: 7214 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
100%
7Y75 +
9392 Points (16%)
min: 22793     avg: 23622     median: 23046.5 (39%)     max: 26081 Points
min: 19409     avg: 22384     median: 22152 (37%)     max: 29209 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
100%
7Y75 +
11682 Points (15%)
0 Points (0%)
min: 28341     avg: 28770     median: 28724.5 (38%)     max: 29210 Points
Cinebench R10 - Rendering Single CPUs 64Bit
100%
7Y75 +
6449 Points (60%)
0 Points (0%)
min: 7347     avg: 7559     median: 7584 (70%)     max: 7795 Points
wPrime 2.0x - 1024m *
100%
7Y75 +
619 seconds (7%)
min: 179.449     avg: 235     median: 214.3 (3%)     max: 330.9 seconds
min: 210.376     avg: 257     median: 225.7 (3%)     max: 379 seconds
wPrime 2.0x - 32m *
100%
7Y75 +
17.4 seconds (4%)
min: 6.668     avg: 10.4     median: 8.6 (2%)     max: 17.8 seconds
min: 6.932     avg: 8.7     median: 7.5 (2%)     max: 20.1 seconds
wPrime 1.55 - 1024m *
215 seconds (1%)
212 seconds (1%)
wPrime 1.55 - 32m *
17.8 seconds (9%)
7.6 seconds (4%)
WinRAR - Result
min: 5114     avg: 5135     median: 5134.5 (60%)     max: 5155 KB/s
min: 3763     avg: 4418     median: 4541.5 (53%)     max: 4903 KB/s
7-Zip 18.03 - 7z b 4
100%
7Y75 +
9657 MIPS (10%)
min: 18417     avg: 20916     median: 19916 (21%)     max: 25414 MIPS
7-Zip 18.03 - 7z b 4 -mmt1
100%
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4617 MIPS (30%)
min: 3986     avg: 4405     median: 4088 (27%)     max: 5457 MIPS
X264 HD Benchmark 4.0 - Pass 2
100%
7Y75 +
16 fps (10%)
min: 46     avg: 46.9     median: 46.9 (30%)     max: 47.8 fps
min: 36.55     avg: 44.6     median: 46 (29%)     max: 46.45 fps
X264 HD Benchmark 4.0 - Pass 1
100%
7Y75 +
91.2 fps (32%)
min: 177     avg: 179     median: 178.8 (64%)     max: 180.6 fps
min: 156.94     avg: 168     median: 168.4 (60%)     max: 175 fps
HWBOT x265 Benchmark v2.2 - 4k Preset
100%
7Y75 +
2 fps (7%)
min: 5.97     avg: 6.2     median: 6 (22%)     max: 6.39 fps
TrueCrypt - Serpent Mean 100MB
100%
7Y75 +
0.2 GB/s (11%)
min: 0.416     avg: 0.5     median: 0.4 (23%)     max: 0.609 GB/s
min: 0.361     avg: 0.4     median: 0.4 (22%)     max: 0.6 GB/s
TrueCrypt - Twofish Mean 100MB
100%
7Y75 +
0.3 GB/s (0%)
min: 0.71     avg: 0.7     median: 0.7 (0%)     max: 0.831 GB/s
min: 0.529     avg: 0.7     median: 0.7 (0%)     max: 0.724 GB/s
TrueCrypt - AES Mean 100MB
100%
7Y75 +
2 GB/s (10%)
min: 3.9     avg: 4.2     median: 4.2 (22%)     max: 4.3 GB/s
min: 2.4     avg: 4     median: 4.1 (21%)     max: 4.2 GB/s
Blender 2.79 *
100%
7Y75 +
1921 Seconds (20%)
min: 597     avg: 631     median: 630.9 (7%)     max: 664.8 Seconds
3DMark 06 - CPU
100%
7Y75 +
3309 Points (22%)
min: 7957     avg: 8098     median: 8038 (54%)     max: 8360 Points
min: 6876     avg: 7596     median: 7686 (51%)     max: 7839 Points
Super Pi mod 1.5 XS 1M *
100%
7Y75 +
10.7 Seconds (2%)
min: 9     avg: 9.6     median: 9.6 (2%)     max: 10.5 Seconds
min: 9     avg: 10.3     median: 10 (2%)     max: 14.8 Seconds
Super Pi mod 1.5 XS 2M *
100%
7Y75 +
24.5 Seconds (1%)
min: 20.665     avg: 21.7     median: 21.5 (1%)     max: 23.5 Seconds
min: 22     avg: 23.3     median: 22.7 (1%)     max: 33.4 Seconds
Super Pi Mod 1.5 XS 32M *
100%
7Y75 +
585 Seconds (3%)
min: 490.548     avg: 529     median: 535.2 (2%)     max: 550.2 Seconds
min: 510.672     avg: 565     median: 550.8 (2%)     max: 921.1 Seconds
3DMark Vantage - P CPU no PhysX 1280x1024
0 Points (0%)
min: 22514     avg: 25520     median: 26567 (37%)     max: 26880 Points
3DMark 11 - Performance Physics 1280x720
100%
7Y75 +
min: 3347     avg: 3582     median: 3688 (18%)     max: 3710 points
min: 9542     avg: 10034     median: 10019 (49%)     max: 10523 points
min: 6196     avg: 8404     median: 8833 (43%)     max: 9653 points
3DMark - Ice Storm Standard Physics 1280x720
100%
7Y75 +
min: 34113     avg: 34681     median: 34680.5 (22%)     max: 35248 Points
min: 51307     avg: 53563     median: 52699.5 (34%)     max: 59600 Points
min: 13754     avg: 46073     median: 47945 (31%)     max: 52765 Points
3DMark - Ice Storm Extreme Physics 1920x1080
100%
7Y75 +
min: 31394     avg: 32948     median: 32948 (39%)     max: 34502 Points
min: 50796     avg: 53623     median: 52515.5 (63%)     max: 59482 Points
min: 33185     avg: 46275     median: 47639 (57%)     max: 52753 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
100%
7Y75 +
min: 35750     avg: 40104     median: 37884 (44%)     max: 46679 Points
min: 51327     avg: 54058     median: 52784.5 (61%)     max: 60127 Points
min: 514     avg: 49677     median: 50783.5 (59%)     max: 53642 Points
3DMark - Cloud Gate Standard Physics 1280x720
100%
7Y75 +
min: 2706     avg: 2924     median: 2994 (8%)     max: 3072 Points
min: 7905     avg: 8141     median: 8001.5 (20%)     max: 9050 Points
min: 5726     avg: 7357     median: 7526 (19%)     max: 7867 Points
3DMark - Fire Strike Physics 1920x1080
100%
7Y75 +
min: 3838     avg: 4174     median: 4289 (15%)     max: 4395 Points
min: 11041     avg: 11381     median: 11174 (38%)     max: 12592 Points
min: 8081     avg: 10465     median: 10629 (36%)     max: 10953 Points
Geekbench 2 - 32 Bit - Stream
7620 Points (61%)
Geekbench 2 - 32 Bit - Memory
7210 Points (65%)
Geekbench 2 - 32 Bit - Floating Point
12792 Points (25%)
Geekbench 2 - 32 Bit - Integer
13091 Points (26%)
Geekbench 2 - 32 Bit - Total Score
11263 Points (29%)
Geekbench 3 - 32 Bit Multi-Core Score
min: 14323     avg: 15088     median: 14476 (26%)     max: 16465 Points
min: 13290     avg: 13780     median: 13936.5 (25%)     max: 14275 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 3718     avg: 4002     median: 3926 (81%)     max: 4361 Points
min: 3256     avg: 3641     median: 3675 (76%)     max: 3843 Points
Geekbench 3 - 64 Bit Multi-Core Score
14990 Points (23%)
min: 13753     avg: 14103     median: 14102.5 (22%)     max: 14452 Points
Geekbench 3 - 64 Bit Single-Core Score
3885 Points (79%)
min: 3532     avg: 3715     median: 3715 (76%)     max: 3898 Points
Geekbench 4.0 - Compute OpenCL Score
min: 165768     avg: 167709     median: 167709 (58%)     max: 169650 Points
min: 73460     avg: 127735     median: 140608 (49%)     max: 169399 Points
Geekbench 4.0 - 64 Bit Multi-Core Score
min: 15042     avg: 15309     median: 15308.5 (43%)     max: 15575 Points
min: 12384     avg: 13663     median: 14009.5 (39%)     max: 14596 Points
Geekbench 4.0 - 64 Bit Single-Core Score
min: 4867     avg: 4905     median: 4904.5 (78%)     max: 4942 Points
min: 4119     avg: 4477     median: 4452.5 (71%)     max: 4740 Points