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Intel Core i7-6600U vs Intel Core i7-6820HK

Intel Core i7-6600U

► remove from comparison Intel 6600U

The Intel Core i7-6600U is an ULV (ultra low voltage) dual-core SoC based on the Skylake architecture. In September 2015, it's the fastest CPU of the 15 W series, which can be found in ultrabooks as well as normal notebooks. In addition to two CPU cores with Hyper-Threading clocked at 2.6 - 3.4 GHz (2 cores: max. 3.2 GHz), the chip also integrates an HD Graphics 520 GPU and a dual-channel DDR4-2133/DDR3L-1600 memory controller. The SoC is manufactured using a 14 nm process with FinFET transistors.

Architecture

Skylake replaces both Haswell and Broadwell and brings the same microarchitecture in every TDP class from 4.5 to 45 W. The extensive improvements of the Skylake design include increased out-of-order buffers, optimized prefetching and branch prediction as well as additional performance gains through Hyper-Threading. Overall, however, performance per clock has been increased by only 5 to 10 percent (compared to Haswell) respectively under 5 percent (compard to Broadwell), which is quite modest for a new architecture ("Tock").

Performance

According to the specified clock rates and the improved architecture, the Core i7-6600U should perform similar to a Core i5-4310M (Haswell, 37 W) and is one of the fastest ULV dual-cores as of late 2015. Thus, the CPU has sufficient power for office and multimedia purposes as well as more demanding applications and multitasking.

Graphics

The integrated graphics unit called HD Graphics 520 represents the "GT2" version of the Skylake GPU (Intel Gen. 9). The 24 Execution Units, also called EUs, are clocked at 300 - 1050 MHz and offer a performance somewhere in range of a dedicated GeForce 820M. Games of 2015 can thus be played smoothly in low settings. For more information about performance and features, check our page for the HD Graphics 520.

Power Consumption

Specified at a TDP of 15 W (including CPU, GPU and memory controller), the CPU is best suited for small notebooks and ultrabooks (11-inches and above). Optionally, the TDP can be lowered to 7.5 watts (cTDP down), reducing both heat dissipation and performance and allowing even more compact designs.

Intel Core i7-6820HK

► remove from comparison Intel 6820HK

The Intel Core i7-6820HK is a quad-core processor based on the Skylake architecture, that has been launched in September 2015. In addition to four CPU cores with Hyper-Threading clocked at 2.7 - 3.6 GHz (4 cores: max. 3.2 GHz, 2 cores: max. 3.4 GHz), the chip also integrates an HD Graphics 530 GPU and a dual-channel DDR4-2133/DDR3L-1600 memory controller. The CPU is manufactured using a 14 nm process with FinFET transistors.

Currently, the i7-6820HK is the only Skylake chip with an unlocked multiplier for easy overclocking (similar to previous Extreme Editions).

Architecture

Skylake replaces both Haswell and Broadwell and brings the same microarchitecture in every TDP class from 4.5 to 45 W. The extensive improvements of the Skylake design include increased out-of-order buffers, optimized prefetching and branch prediction as well as additional performance gains through Hyper-Threading. Overall, however, performance per clock has been increased by only 5 to 10 percent (compared to Haswell) respectively under 5 percent (compard to Broadwell), which is quite modest for a new architecture ("Tock").

Performance

Tanks to the improved architecture, the Core i7-6820HK performs roughly on par with the former Core i7-4900MQ (Haswell) or the Core i7-5700HQ (Broadwell). Under long-lasting full load, the Skylake chip will take the lead over most of its Haswell-based predecessors, as the advanced 14 nm process leads to a higher energy efficiency and reduces throttling. If the 6820HK is overclocked (we've tested up to 4.0 GHz on all 4 cores), the performance will be even better.

Even the most demanding applications and excessive multitasking are handled easily.

Graphics

The integrated graphics unit called HD Graphics 530 represents the "GT2" version of the Skylake GPU (Intel Gen. 9). The 24 Execution Units, also called EUs, are clocked at 350 - 1050 MHz and offer a performance about 20 percent above the old HD Graphics 4600. Games of 2015 can thus be played smoothly in low or medium settings. For more information about performance and features, check our page for the HD Graphics 530.

Power Consumption

Specified at a TDP of 45 W (including CPU, GPU and memory controller), the CPU is best suited for bigger notebooks 15-inches in size and above. Optionally, the TDP can be lowered to 35 watts (cTDP down), reducing both heat dissipation and performance.

ModelIntel Core i7-6600UIntel Core i7-6820HK
SeriesIntel Core i7Intel Core i7
CodenameSkylakeSkylake
Series: Core i7 Skylake
Intel Core i7-6920HQ compare2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-6970HQ compare2.8 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-6870HQ compare2.7 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-6820HK2.7 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-6820HQ compare2.7 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-6770HQ compare2.6 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-6700HQ compare2.6 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-6567U compare3.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-6600U « 2.6 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-6650U compare2.2 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-6560U compare2.2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-6500U compare2.5 - 3.1 GHz2 / 4 cores4 MB L3
Intel Core i7-6920HQ compare2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-6970HQ compare2.8 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-6870HQ compare2.7 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-6820HK « 2.7 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-6820HQ compare2.7 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-6770HQ compare2.6 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-6700HQ compare2.6 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-6567U compare3.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-6600U2.6 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-6650U compare2.2 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-6560U compare2.2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-6500U compare2.5 - 3.1 GHz2 / 4 cores4 MB L3
Clock2600 - 3400 MHz2700 - 3600 MHz
L1 Cache128 KB256 KB
L2 Cache512 KB1 MB
L3 Cache4 MB8 MB
Cores / Threads2 / 44 / 8
TDP15 Watt45 Watt
Technology14 nm14 nm
Die Size99 mm2122 mm2
max. Temp.100 °C100 °C
SocketBGABGA
FeaturesDual-Channel DDR3L-1600/DDR4-2133 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, vPro, TXTDual-Channel DDR3L-1600/DDR4-2133 Memory Controller, AVX, AVX2, Quick Sync, Virtualization, AES-NI
iGPUIntel HD Graphics 520 (300 - 1050 MHz)Intel HD Graphics 530 (350 - 1050 MHz)
Architecturex86x86
$393 U.S.$378 U.S.
Announced
ManufacturerIntel Core i7 6600UIntel Core i7 6820HK

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 306     avg: 324     median: 321 (3%)     max: 348 Points
min: 687     avg: 739     median: 709 (7%)     max: 836 Points
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 118     avg: 136.6     median: 141 (43%)     max: 144 Points
min: 134     avg: 153.9     median: 152 (46%)     max: 172 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 3.25     avg: 3.6     median: 3.6 (5%)     max: 3.84 Points
min: 7.7     avg: 8.1     median: 7.8 (11%)     max: 9.24 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.19     avg: 1.6     median: 1.6 (5%)     max: 1.63 Points
min: 1.58     avg: 1.8     median: 1.7 (5%)     max: 1.94 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 3260     avg: 5259     median: 5298 (43%)     max: 7045 Points
min: 5559     avg: 5776     median: 5653 (46%)     max: 6405 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 9140     avg: 11541     median: 11320 (13%)     max: 14948 Points
min: 20910     avg: 21774     median: 21165 (24%)     max: 24966 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 14391     avg: 14724     median: 14412 (10%)     max: 15369 Points
min: 27271     avg: 27498     median: 27479.5 (20%)     max: 27762 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 6863     avg: 7593     median: 6890 (38%)     max: 9027 Points
min: 7217     avg: 7316     median: 7313 (40%)     max: 7421 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 447.3     avg: 503     median: 509 (6%)     max: 526 s
min: 210.3     avg: 229.7     median: 224.7 (3%)     max: 296.6 s
wPrime 2.10 - wPrime 2.0 32m *
min: 14.08     avg: 15.3     median: 14.7 (3%)     max: 19.26 s
min: 6.434     avg: 7.4     median: 7.3 (1%)     max: 9.5 s
WinRAR - WinRAR 4.0
min: 2264     avg: 2450     median: 2449.5 (14%)     max: 2635 Points
min: 5314     avg: 5369     median: 5314 (31%)     max: 5480 Points
X264 HD Benchmark 4.0 - x264 Pass 2
min: 19.52     avg: 20.8     median: 20 (7%)     max: 22.62 fps
min: 43.9     avg: 45.1     median: 44.1 (16%)     max: 50 fps
X264 HD Benchmark 4.0 - x264 Pass 1
min: 103.7     avg: 111     median: 109 (26%)     max: 120.4 fps
min: 160.9     avg: 171.4     median: 165.9 (39%)     max: 190 fps
TrueCrypt - TrueCrypt Serpent
min: 0.193     avg: 0.2     median: 0.2 (0%)     max: 0.201 GB/s
min: 0.311     avg: 0.4     median: 0.4 (0%)     max: 0.477 GB/s
TrueCrypt - TrueCrypt Twofish
min: 0.317     avg: 0.3     median: 0.3 (0%)     max: 0.343 GB/s
min: 0.503     avg: 0.7     median: 0.7 (0%)     max: 0.803 GB/s
TrueCrypt - TrueCrypt AES
min: 1.9     avg: 1.9     median: 1.9 (0%)     max: 2 GB/s
min: 2.1     avg: 3.9     median: 3.9 (0%)     max: 4.6 GB/s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 4107     avg: 4334     median: 4333.5 (9%)     max: 4560 Points
min: 7234     avg: 7601     median: 7410 (16%)     max: 8697 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 10.9     avg: 11.1     median: 11.1 (2%)     max: 11.35 s
min: 9     avg: 10     median: 10.3 (2%)     max: 10.63 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 24.75     avg: 25.2     median: 25.1 (1%)     max: 26.03 s
min: 20     avg: 22.3     median: 23 (1%)     max: 23.39 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 558     avg: 578     median: 572 (3%)     max: 610 s
min: 486.7     avg: 532     median: 535.5 (2%)     max: 572 s
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
12712 Points (12%)
min: 26017     avg: 26256     median: 26272 (25%)     max: 26478 Points
3DMark 11 - 3DM11 Performance Physics
min: 4034     avg: 4479     median: 4606.5 (13%)     max: 4780 Points
min: 8220     avg: 9612     median: 9468 (26%)     max: 10925 Points
3DMark - 3DMark Ice Storm Physics
min: 31340     avg: 38138     median: 37127 (24%)     max: 42543 Points
min: 43579     avg: 49276     median: 47533.5 (31%)     max: 58061 Points
3DMark - 3DMark Ice Storm Extreme Physics
min: 26121     avg: 37420     median: 39364 (33%)     max: 42164 Points
min: 43592     avg: 49506     median: 47817 (40%)     max: 56227 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 42770     avg: 43159     median: 43159 (36%)     max: 43548 Points
min: 45688     avg: 49381     median: 47727 (40%)     max: 55770 Points
3DMark - 3DMark Cloud Gate Physics
min: 3073     avg: 3543     median: 3569 (9%)     max: 3745 Points
min: 6663     avg: 7660     median: 7388 (19%)     max: 8824 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 4279     avg: 5086     median: 5134.5 (9%)     max: 5344 Points
min: 9695     avg: 10672     median: 10219 (19%)     max: 12239 Points
3DMark - 3DMark Time Spy CPU
100%
1 6820HK +
4069 Points (20%)
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
min: 6303     avg: 6693     median: 6692.5 (12%)     max: 7082 Points
13486 Points (24%)
Geekbench 3 - Geekbench 3 32 Bit Single-Core
min: 3060     avg: 3222     median: 3222 (63%)     max: 3384 Points
3819 Points (75%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
min: 6618     avg: 7032     median: 7031.5 (11%)     max: 7445 Points
14128 Points (22%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
min: 3191     avg: 3369     median: 3369 (50%)     max: 3547 Points
3983 Points (60%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 1030     avg: 1601     median: 1048 (1%)     max: 3827 ms
min: 923     avg: 1122     median: 966.5 (1%)     max: 1631 ms
Sunspider - Sunspider 1.0 Total Score *
min: 77.3     avg: 137.8     median: 134.4 (1%)     max: 205 ms
min: 65.7     avg: 78.8     median: 69.8 (1%)     max: 95.8 ms
Octane V2 - Octane V2 Total Score
min: 8244     avg: 28548     median: 32986 (34%)     max: 35045 Points
min: 16177     avg: 34771     median: 36903 (38%)     max: 44322 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
100%
1 6600U +
28.9 Watt (5%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
100%
1 6600U +
26.2 Watt (5%)
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
100%
1 6600U +
11.8 Points per Watt (14%)

Average Benchmarks Intel Core i7-6600U → 100% n=34

Average Benchmarks Intel Core i7-6820HK → 154% n=34

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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v1.22
log 30. 10:04:54

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#3 did not recreate cache, as it is less than 5 days old! Created at Mon, 30 Jan 2023 08:57:14 +0100 +0.001s ... 0.001s

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#6 getting avg benchmarks for device 6969 +0.002s ... 0.03s

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#11 min, max, avg, median took s +0.187s ... 0.34s

#12 return log +0.024s ... 0.363s

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Redaktion, 2017-09- 8 (Update: 2017-09-11)